.PHONY: binaries
binaries: \
- $(INSTALLDIR)/heretic2/h2data.$(EXE) \
+ binaries-tools \
+ binaries-radiant \
+
+.PHONY: binaries-radiant-all
+binaries-radiant: \
+ binaries-radiant-modules \
+ binaries-radiant-plugins \
+ binaries-radiant-core \
+
+.PHONY: binaries-radiant-modules
+binaries-radiant-modules: \
$(INSTALLDIR)/modules/archivepak.$(DLL) \
$(INSTALLDIR)/modules/archivewad.$(DLL) \
$(INSTALLDIR)/modules/archivezip.$(DLL) \
$(INSTALLDIR)/modules/model.$(DLL) \
$(INSTALLDIR)/modules/shaders.$(DLL) \
$(INSTALLDIR)/modules/vfspk3.$(DLL) \
+
+.PHONY: binaries-radiant-plugins
+binaries-radiant-plugins: \
$(INSTALLDIR)/plugins/bobtoolz.$(DLL) \
$(INSTALLDIR)/plugins/brushexport.$(DLL) \
$(INSTALLDIR)/plugins/prtview.$(DLL) \
$(INSTALLDIR)/plugins/shaderplug.$(DLL) \
$(INSTALLDIR)/plugins/sunplug.$(DLL) \
$(INSTALLDIR)/plugins/ufoaiplug.$(DLL) \
+
+.PHONY: binaries-radiant
+binaries-radiant-core: \
+ $(INSTALLDIR)/radiant.$(EXE) \
+
+.PHONY: binaries-tools
+binaries-tools: \
+ binaries-tools-quake2 \
+ binaries-tools-quake3 \
+
+.PHONY: binaries-tools-quake2
+binaries-tools-quake2: \
+ binaries-q2map \
+ binaries-qdata3 \
+ binaries-h2data \
+
+.PHONY: binaries-q2map
+binaries-q2map: \
$(INSTALLDIR)/q2map.$(EXE) \
+
+.PHONY: binaries-qdata3
+binaries-qdata3: \
+ $(INSTALLDIR)/qdata3.$(EXE) \
+
+.PHONY: binaries-h2data
+binaries-h2data: \
+ $(INSTALLDIR)/heretic2/h2data.$(EXE)
+
+.PHONY: binaries-tools-quake3
+binaries-tools-quake3: \
+ binaries-q3data \
+ binaries-q3map2 \
+
+.PHONY: binaries-q3data
+binaries-q3data: \
$(INSTALLDIR)/q3data.$(EXE) \
+
+.PHONY: binaries-q3map2
+binaries-q3map2: \
$(INSTALLDIR)/q3map2.$(EXE) \
- $(INSTALLDIR)/qdata3.$(EXE) \
- $(INSTALLDIR)/radiant.$(EXE) \
+
.PHONY: clean
clean:
tools/quake3/q3map2/bspfile_rbsp.o \
tools/quake3/q3map2/bsp.o \
tools/quake3/q3map2/convert_ase.o \
+ tools/quake3/q3map2/convert_obj.o \
tools/quake3/q3map2/convert_map.o \
tools/quake3/q3map2/decals.o \
tools/quake3/q3map2/facebsp.o \
</style>
</head>
<body>
-<p class="p1">put here links</p>
+<p class="p1"><a href="http://dev.xonotic.org/projects/xonotic/wiki/Mapping">Xonotic Mapping Wiki</A></p>
</body>
</html>
// mathlib.h
#include <math.h>
+#include <float.h>
#ifdef __cplusplus
typedef vec_t vec5_t[5];
typedef vec_t vec4_t[4];
+// Smallest positive value for vec_t such that 1.0 + VEC_SMALLEST_EPSILON_AROUND_ONE != 1.0.
+// In the case of 32 bit floats (which is almost certainly the case), it's 0.00000011921.
+// Don't forget that your epsilons should depend on the possible range of values,
+// because for example adding VEC_SMALLEST_EPSILON_AROUND_ONE to 1024.0 will have no effect.
+#define VEC_SMALLEST_EPSILON_AROUND_ONE FLT_EPSILON
+
#define SIDE_FRONT 0
#define SIDE_ON 2
#define SIDE_BACK 1
qboolean VectorCompare (const vec3_t v1, const vec3_t v2);
+qboolean VectorIsOnAxis(vec3_t v);
+qboolean VectorIsOnAxialPlane(vec3_t v);
+
vec_t VectorLength(const vec3_t v);
void VectorMA( const vec3_t va, vec_t scale, const vec3_t vb, vec3_t vc );
void _CrossProduct (vec3_t v1, vec3_t v2, vec3_t cross);
+// I need this define in order to test some of the regression tests from time to time.
+// This define affect the precision of VectorNormalize() function only.
+#define MATHLIB_VECTOR_NORMALIZE_PRECISION_FIX 1
vec_t VectorNormalize (const vec3_t in, vec3_t out);
vec_t ColorNormalize( const vec3_t in, vec3_t out );
void VectorInverse (vec3_t v);
int plane_intersect_planes(const vec4_t plane1, const vec4_t plane2, const vec4_t plane3, vec3_t intersection);
+
+////////////////////////////////////////////////////////////////////////////////
+// Below is double-precision math stuff. This was initially needed by the new
+// "base winding" code in q3map2 brush processing in order to fix the famous
+// "disappearing triangles" issue. These definitions can be used wherever extra
+// precision is needed.
+////////////////////////////////////////////////////////////////////////////////
+
+typedef double vec_accu_t;
+typedef vec_accu_t vec3_accu_t[3];
+
+// Smallest positive value for vec_accu_t such that 1.0 + VEC_ACCU_SMALLEST_EPSILON_AROUND_ONE != 1.0.
+// In the case of 64 bit doubles (which is almost certainly the case), it's 0.00000000000000022204.
+// Don't forget that your epsilons should depend on the possible range of values,
+// because for example adding VEC_ACCU_SMALLEST_EPSILON_AROUND_ONE to 1024.0 will have no effect.
+#define VEC_ACCU_SMALLEST_EPSILON_AROUND_ONE DBL_EPSILON
+
+vec_accu_t VectorLengthAccu(const vec3_accu_t v);
+
+// I have a feeling it may be safer to break these #define functions out into actual functions
+// in order to avoid accidental loss of precision. For example, say you call
+// VectorScaleAccu(vec3_t, vec_t, vec3_accu_t). The scale would take place in 32 bit land
+// and the result would be cast to 64 bit, which would cause total loss of precision when
+// scaling by a large factor.
+//#define DotProductAccu(x, y) ((x)[0] * (y)[0] + (x)[1] * (y)[1] + (x)[2] * (y)[2])
+//#define VectorSubtractAccu(a, b, c) ((c)[0] = (a)[0] - (b)[0], (c)[1] = (a)[1] - (b)[1], (c)[2] = (a)[2] - (b)[2])
+//#define VectorAddAccu(a, b, c) ((c)[0] = (a)[0] + (b)[0], (c)[1] = (a)[1] + (b)[1], (c)[2] = (a)[2] + (b)[2])
+//#define VectorCopyAccu(a, b) ((b)[0] = (a)[0], (b)[1] = (a)[1], (b)[2] = (a)[2])
+//#define VectorScaleAccu(a, b, c) ((c)[0] = (b) * (a)[0], (c)[1] = (b) * (a)[1], (c)[2] = (b) * (a)[2])
+//#define CrossProductAccu(a, b, c) ((c)[0] = (a)[1] * (b)[2] - (a)[2] * (b)[1], (c)[1] = (a)[2] * (b)[0] - (a)[0] * (b)[2], (c)[2] = (a)[0] * (b)[1] - (a)[1] * (b)[0])
+//#define Q_rintAccu(in) ((vec_accu_t) floor(in + 0.5))
+
+vec_accu_t DotProductAccu(const vec3_accu_t a, const vec3_accu_t b);
+void VectorSubtractAccu(const vec3_accu_t a, const vec3_accu_t b, vec3_accu_t out);
+void VectorAddAccu(const vec3_accu_t a, const vec3_accu_t b, vec3_accu_t out);
+void VectorCopyAccu(const vec3_accu_t in, vec3_accu_t out);
+void VectorScaleAccu(const vec3_accu_t in, vec_accu_t scaleFactor, vec3_accu_t out);
+void CrossProductAccu(const vec3_accu_t a, const vec3_accu_t b, vec3_accu_t out);
+vec_accu_t Q_rintAccu(vec_accu_t val);
+
+void VectorCopyAccuToRegular(const vec3_accu_t in, vec3_t out);
+void VectorCopyRegularToAccu(const vec3_t in, vec3_accu_t out);
+vec_accu_t VectorNormalizeAccu(const vec3_accu_t in, vec3_accu_t out);
+
#ifdef __cplusplus
}
#endif
const vec3_t g_vec3_axis_y = { 0, 1, 0, };
const vec3_t g_vec3_axis_z = { 0, 0, 1, };
+/*
+================
+VectorIsOnAxis
+================
+*/
+qboolean VectorIsOnAxis(vec3_t v)
+{
+ int i, zeroComponentCount;
+
+ zeroComponentCount = 0;
+ for (i = 0; i < 3; i++)
+ {
+ if (v[i] == 0.0)
+ {
+ zeroComponentCount++;
+ }
+ }
+
+ if (zeroComponentCount > 1)
+ {
+ // The zero vector will be on axis.
+ return qtrue;
+ }
+
+ return qfalse;
+}
+
+/*
+================
+VectorIsOnAxialPlane
+================
+*/
+qboolean VectorIsOnAxialPlane(vec3_t v)
+{
+ int i;
+
+ for (i = 0; i < 3; i++)
+ {
+ if (v[i] == 0.0)
+ {
+ // The zero vector will be on axial plane.
+ return qtrue;
+ }
+ }
+
+ return qfalse;
+}
+
/*
================
MakeNormalVectors
}
vec_t VectorNormalize( const vec3_t in, vec3_t out ) {
+
+#if MATHLIB_VECTOR_NORMALIZE_PRECISION_FIX
+
+ // The sqrt() function takes double as an input and returns double as an
+ // output according the the man pages on Debian and on FreeBSD. Therefore,
+ // I don't see a reason why using a double outright (instead of using the
+ // vec_accu_t alias for example) could possibly be frowned upon.
+
+ double x, y, z, length;
+
+ x = (double) in[0];
+ y = (double) in[1];
+ z = (double) in[2];
+
+ length = sqrt((x * x) + (y * y) + (z * z));
+ if (length == 0)
+ {
+ VectorClear (out);
+ return 0;
+ }
+
+ out[0] = (vec_t) (x / length);
+ out[1] = (vec_t) (y / length);
+ out[2] = (vec_t) (z / length);
+
+ return (vec_t) length;
+
+#else
+
vec_t length, ilength;
length = (vec_t)sqrt (in[0]*in[0] + in[1]*in[1] + in[2]*in[2]);
out[2] = in[2]*ilength;
return length;
+
+#endif
+
}
vec_t ColorNormalize( const vec3_t in, vec3_t out ) {
dst[i] = rot[i][0] * point[0] + rot[i][1] * point[1] + rot[i][2] * point[2];
}
}
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Below is double-precision math stuff. This was initially needed by the new
+// "base winding" code in q3map2 brush processing in order to fix the famous
+// "disappearing triangles" issue. These definitions can be used wherever extra
+// precision is needed.
+////////////////////////////////////////////////////////////////////////////////
+
+/*
+=================
+VectorLengthAccu
+=================
+*/
+vec_accu_t VectorLengthAccu(const vec3_accu_t v)
+{
+ return (vec_accu_t) sqrt((v[0] * v[0]) + (v[1] * v[1]) + (v[2] * v[2]));
+}
+
+/*
+=================
+DotProductAccu
+=================
+*/
+vec_accu_t DotProductAccu(const vec3_accu_t a, const vec3_accu_t b)
+{
+ return (a[0] * b[0]) + (a[1] * b[1]) + (a[2] * b[2]);
+}
+
+/*
+=================
+VectorSubtractAccu
+=================
+*/
+void VectorSubtractAccu(const vec3_accu_t a, const vec3_accu_t b, vec3_accu_t out)
+{
+ out[0] = a[0] - b[0];
+ out[1] = a[1] - b[1];
+ out[2] = a[2] - b[2];
+}
+
+/*
+=================
+VectorAddAccu
+=================
+*/
+void VectorAddAccu(const vec3_accu_t a, const vec3_accu_t b, vec3_accu_t out)
+{
+ out[0] = a[0] + b[0];
+ out[1] = a[1] + b[1];
+ out[2] = a[2] + b[2];
+}
+
+/*
+=================
+VectorCopyAccu
+=================
+*/
+void VectorCopyAccu(const vec3_accu_t in, vec3_accu_t out)
+{
+ out[0] = in[0];
+ out[1] = in[1];
+ out[2] = in[2];
+}
+
+/*
+=================
+VectorScaleAccu
+=================
+*/
+void VectorScaleAccu(const vec3_accu_t in, vec_accu_t scaleFactor, vec3_accu_t out)
+{
+ out[0] = in[0] * scaleFactor;
+ out[1] = in[1] * scaleFactor;
+ out[2] = in[2] * scaleFactor;
+}
+
+/*
+=================
+CrossProductAccu
+=================
+*/
+void CrossProductAccu(const vec3_accu_t a, const vec3_accu_t b, vec3_accu_t out)
+{
+ out[0] = (a[1] * b[2]) - (a[2] * b[1]);
+ out[1] = (a[2] * b[0]) - (a[0] * b[2]);
+ out[2] = (a[0] * b[1]) - (a[1] * b[0]);
+}
+
+/*
+=================
+Q_rintAccu
+=================
+*/
+vec_accu_t Q_rintAccu(vec_accu_t val)
+{
+ return (vec_accu_t) floor(val + 0.5);
+}
+
+/*
+=================
+VectorCopyAccuToRegular
+=================
+*/
+void VectorCopyAccuToRegular(const vec3_accu_t in, vec3_t out)
+{
+ out[0] = (vec_t) in[0];
+ out[1] = (vec_t) in[1];
+ out[2] = (vec_t) in[2];
+}
+
+/*
+=================
+VectorCopyRegularToAccu
+=================
+*/
+void VectorCopyRegularToAccu(const vec3_t in, vec3_accu_t out)
+{
+ out[0] = (vec_accu_t) in[0];
+ out[1] = (vec_accu_t) in[1];
+ out[2] = (vec_accu_t) in[2];
+}
+
+/*
+=================
+VectorNormalizeAccu
+=================
+*/
+vec_accu_t VectorNormalizeAccu(const vec3_accu_t in, vec3_accu_t out)
+{
+ // The sqrt() function takes double as an input and returns double as an
+ // output according the the man pages on Debian and on FreeBSD. Therefore,
+ // I don't see a reason why using a double outright (instead of using the
+ // vec_accu_t alias for example) could possibly be frowned upon.
+
+ vec_accu_t length;
+
+ length = (vec_accu_t) sqrt((in[0] * in[0]) + (in[1] * in[1]) + (in[2] * in[2]));
+ if (length == 0)
+ {
+ VectorClear(out);
+ return 0;
+ }
+
+ out[0] = in[0] / length;
+ out[1] = in[1] / length;
+ out[2] = in[2] / length;
+
+ return length;
+}
+
+
const GdkColor yellow = { 0, 0xb0ff, 0xb0ff, 0x0000 };
const GdkColor red = { 0, 0xffff, 0x0000, 0x0000 };
- const GdkColor black = { 0, 0x0000, 0x0000, 0x0000 };
static GtkTextTag* error_tag = gtk_text_buffer_create_tag (buffer, "red_foreground", "foreground-gdk", &red, 0);
static GtkTextTag* warning_tag = gtk_text_buffer_create_tag (buffer, "yellow_foreground", "foreground-gdk", &yellow, 0);
- static GtkTextTag* standard_tag = gtk_text_buffer_create_tag (buffer, "black_foreground", "foreground-gdk", &black, 0);
+ static GtkTextTag* standard_tag = gtk_text_buffer_create_tag (buffer, "black_foreground", 0);
GtkTextTag* tag;
switch (level)
{
lib = LoadLibrary("dwmapi.dll");
if(lib != 0)
{
- void (WINAPI *DwmEnableComposition) (bool bEnable) = (void (WINAPI *) (bool bEnable)) GetProcAddress(lib, "DwmEnableComposition");
- if(DwmEnableComposition)
- DwmEnableComposition(FALSE);
+ void (WINAPI *qDwmEnableComposition) (bool bEnable) = (void (WINAPI *) (bool bEnable)) GetProcAddress(lib, "DwmEnableComposition");
+ if(qDwmEnableComposition)
+ qDwmEnableComposition(FALSE);
FreeLibrary(lib);
}
#endif
goto tryDecompile;
{
+ const MapFormat* format = NULL;
+ const char* moduleName = findModuleName(&GlobalFiletypes(), MapFormat::Name(), path_get_extension(filename));
+ if(string_not_empty(moduleName))
+ format = ReferenceAPI_getMapModules().findModule(moduleName);
+
+ if(format)
+ format->wrongFormat = false;
Resource* resource = GlobalReferenceCache().capture(filename);
resource->refresh(); // avoid loading old version if map has changed on disk since last import
if(!resource->load())
GlobalReferenceCache().release(filename);
goto tryDecompile;
}
+ if(format)
+ if(format->wrongFormat)
+ {
+ GlobalReferenceCache().release(filename);
+ goto tryDecompile;
+ }
NodeSmartReference clone(NewMapRoot(""));
Node_getTraversable(*resource->getNode())->traverse(CloneAll(clone));
Map_gatherNamespaced(clone);
output.push_string(gamename_get());
output.push_string(" -convert -format ");
output.push_string(Brush::m_type == eBrushTypeQuake3BP ? "map_bp" : "map");
- output.push_string(" \"");
+ output.push_string(" -readmap \"");
output.push_string(filename);
output.push_string("\"");
GlobalCommands_insert("NextView", FreeCaller<XY_Next>(), Accelerator(GDK_Tab, (GdkModifierType)GDK_CONTROL_MASK));
GlobalCommands_insert("ZoomIn", FreeCaller<XY_ZoomIn>(), Accelerator(GDK_Delete));
GlobalCommands_insert("ZoomOut", FreeCaller<XY_ZoomOut>(), Accelerator(GDK_Insert));
- GlobalCommands_insert("ViewTop", FreeCaller<XY_Top>());
- GlobalCommands_insert("ViewSide", FreeCaller<XY_Side>());
- GlobalCommands_insert("ViewFront", FreeCaller<XY_Front>());
+ GlobalCommands_insert("ViewTop", FreeCaller<XY_Top>(), Accelerator(GDK_KP_Home));
+ GlobalCommands_insert("ViewSide", FreeCaller<XY_Side>(), Accelerator(GDK_KP_Page_Down));
+ GlobalCommands_insert("ViewFront", FreeCaller<XY_Front>(), Accelerator(GDK_KP_End));
GlobalCommands_insert("Zoom100", FreeCaller<XY_Zoom100>());
GlobalCommands_insert("CenterXYView", FreeCaller<XY_Focus>(), Accelerator(GDK_Tab, (GdkModifierType)(GDK_SHIFT_MASK|GDK_CONTROL_MASK)));
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The provided map, maps/base_winding.map, serves as an example map to test
+changes to BaseWindingForPlane(). This map has planes at many different
+angles. Use the patch base_winding_logging.patch to log the computed
+base windings, in order to compare before and after when making changes to
+BaseWindingForPlane().
--- /dev/null
+Index: tools/quake3/q3map2/brush.c
+===================================================================
+--- tools/quake3/q3map2/brush.c (revision 369)
++++ tools/quake3/q3map2/brush.c (working copy)
+@@ -357,6 +357,8 @@
+ side_t *side;
+ plane_t *plane;
+
++ static int brushord = -1;
++ brushord++;
+
+ /* walk the list of brush sides */
+ for( i = 0; i < brush->numsides; i++ )
+@@ -367,6 +369,13 @@
+
+ /* make huge winding */
+ w = BaseWindingForPlane( plane->normal, plane->dist );
++ Sys_Printf(">>> BaseWindingForPlane() for brush %i, side %i is as follows:\n", brushord, i);
++ for (j = 0; j < w->numpoints; j++) {
++ Sys_Printf(">>> (%.1f %.1f %.1f) [rounded to nearest integer coordinates]\n",
++ Q_rint(w->p[j][0]),
++ Q_rint(w->p[j][1]),
++ Q_rint(w->p[j][2]));
++ }
+
+ /* walk the list of brush sides */
+ for( j = 0; j < brush->numsides && w != NULL; j++ )
--- /dev/null
+{
+"classname" "worldspawn"
+{
+( 768 256 0 ) ( 768 115 -256 ) ( 768 0 0 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 443 256 0 ) ( 768 256 0 ) ( 512 0 0 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 428 115 -256 ) ( 768 115 -256 ) ( 443 256 0 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 512 0 0 ) ( 768 0 0 ) ( 428 115 -256 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 512 0 0 ) ( 428 115 -256 ) ( 443 256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 134217728 0 0
+}
+{
+( 768 128 -443 ) ( 768 0 -443 ) ( 768 115 -256 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 222 128 -443 ) ( 768 128 -443 ) ( 428 115 -256 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 256 0 -443 ) ( 768 0 -443 ) ( 222 128 -443 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 428 115 -256 ) ( 768 115 -256 ) ( 256 0 -443 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 428 115 -256 ) ( 256 0 -443 ) ( 222 128 -443 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 134217728 0 0
+}
+{
+( 768 128 -768 ) ( 768 0 -768 ) ( 768 0 -443 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 222 128 -443 ) ( 768 128 -443 ) ( 256 0 -443 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 222 128 -768 ) ( 768 128 -768 ) ( 222 128 -443 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 256 0 -768 ) ( 768 0 -768 ) ( 222 128 -768 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 256 0 -443 ) ( 768 0 -443 ) ( 256 0 -768 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 256 0 -443 ) ( 256 0 -768 ) ( 222 128 -768 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+}
+{
+( 222 128 -768 ) ( 0 0 -768 ) ( 256 0 -768 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 222 128 -443 ) ( 222 128 -768 ) ( 256 0 -443 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 0 0 -512 ) ( 0 0 -768 ) ( 222 128 -443 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 256 0 -443 ) ( 256 0 -768 ) ( 0 0 -512 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 256 0 -443 ) ( 0 0 -512 ) ( 222 128 -443 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 134217728 0 0
+}
+{
+( 768 314 -256 ) ( 768 115 -256 ) ( 768 256 0 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 314 314 -256 ) ( 768 314 -256 ) ( 443 256 0 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 428 115 -256 ) ( 768 115 -256 ) ( 314 314 -256 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 443 256 0 ) ( 768 256 0 ) ( 428 115 -256 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 443 256 0 ) ( 428 115 -256 ) ( 314 314 -256 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 134217728 0 0
+}
+{
+( 768 314 -256 ) ( 768 128 -443 ) ( 768 115 -256 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 314 314 -256 ) ( 768 314 -256 ) ( 428 115 -256 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 222 128 -443 ) ( 768 128 -443 ) ( 314 314 -256 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 428 115 -256 ) ( 768 115 -256 ) ( 222 128 -443 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 428 115 -256 ) ( 222 128 -443 ) ( 314 314 -256 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 134217728 0 0
+}
+{
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+{
+"origin" "-64 0 -384"
+"classname" "info_player_deathmatch"
+}
+{
+"light" "1000"
+"origin" "0 0 64"
+"classname" "light"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+Because of the coarse nature of SnapNormal(), planes that are 0.25 degrees
+away from being axial are "snapped" to be axial. The "normal epsilon"
+is a very small value by default, and cannot go much smaller (without
+running into limits of floating point numbers). The problem with
+SnapNormal() is that we compare the components of the normal that are near
+1, instead of comaring the components that are near 0. This leads to a very
+coarse and inaccurate SnapNormal().
+
+If you open the example map in Radiant, you can see that the red brick should
+touch the middle checkered brick at the edge. However, once this map is
+compiled, the edges are a significant distance apart. This is due to the
+coarse and inaccurate nature of SnapNormal(). Likewise, the green brick should
+be flush with the center tiled brick, but it's not.
--- /dev/null
+{
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+( 512 -512 512 ) ( -512 -512 512 ) ( -512 -512 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -512 -512 512 ) ( -512 -600 512 ) ( -512 -600 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 512 72 64 ) ( -512 72 64 ) ( -512 -448 64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -128 448 260 ) ( 192 448 260 ) ( 192 -448 256 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -512 -448 256 ) ( 512 -448 256 ) ( 512 -448 56 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 192 -440 256 ) ( 192 80 256 ) ( 192 80 56 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 192 448 260 ) ( -128 448 260 ) ( -128 448 64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -128 56 256 ) ( -128 -464 256 ) ( -128 -464 56 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( 192 -448 232 ) ( -128 -448 232 ) ( -128 -472 232 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( -128 -472 256 ) ( -128 -448 256 ) ( 192 -448 256 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( -128 -472 256 ) ( 192 -472 256 ) ( 192 -472 232 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( 192 -472 256 ) ( 192 -448 256 ) ( 192 -448 232 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( 192 -448 256 ) ( -128 -448 256 ) ( -128 -448 232 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( -128 -448 256 ) ( -128 -472 256 ) ( -128 -472 232 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( 192 472 260 ) ( -128 472 260 ) ( -128 448 260 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( -128 448 280 ) ( -128 472 280 ) ( 192 472 280 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( -128 448 280 ) ( 192 448 280 ) ( 192 448 256 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( 192 448 280 ) ( 192 472 280 ) ( 192 472 256 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( 192 472 280 ) ( -128 472 280 ) ( -128 472 256 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( -128 472 280 ) ( -128 448 280 ) ( -128 448 256 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+}
+}
+{
+"light" "3000"
+"origin" "0 0 384"
+"classname" "light"
+}
+{
+"origin" "0 -64 384"
+"classname" "info_player_deathmatch"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The info_null in the map for the decal is not 100% below the center of the
+decal itself, because to be totally below it would have to lie on half-units.
+So, the info_null lies almost directly below the center of the decal. In
+this particular case, all kinds of bad things happen to the decal. For one,
+during compiling we get warnings like this:
+
+ Bad texture matrix! (B) (50.512253, -49.515625) != (50.484375, -49.515625)
+ Bad texture matrix! (C) (48.723190, -49.522587) != (48.695312, -49.515625)
+ Bad texture matrix! (B) (48.723186, -49.522587) != (48.695312, -49.515625)
+
+If you look at where the decal (it's just a blue translucent tile texture)
+meets the far wall, it's clearly not aligned correctly. The tile on the decal
+and the tile on the wall should align perfectly, and it's quite a bit off.
--- /dev/null
+{
+"classname" "worldspawn"
+{
+( 6472 6336 -960 ) ( 6288 6336 -960 ) ( 6288 6320 -960 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6264 6320 -576 ) ( 6264 6336 -576 ) ( 6448 6336 -576 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6280 6328 -832 ) ( 6464 6328 -832 ) ( 6464 6328 -848 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6464 6320 -832 ) ( 6464 6336 -832 ) ( 6464 6336 -848 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6464 6336 -832 ) ( 6280 6336 -832 ) ( 6280 6336 -848 ) radiant_regression_tests/bigtile 0 0 0 0.500000 0.500000 0 0 0
+( 6144 6336 -832 ) ( 6144 6320 -832 ) ( 6144 6320 -848 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 6552 6520 -960 ) ( 6464 6520 -960 ) ( 6464 6336 -960 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6464 6336 -576 ) ( 6464 6520 -576 ) ( 6552 6520 -576 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
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+( 6464 6520 -576 ) ( 6464 6336 -576 ) ( 6464 6336 -960 ) radiant_regression_tests/bigtile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
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+( 6144 7360 -576 ) ( 6464 7360 -576 ) ( 6464 7360 -960 ) radiant_regression_tests/bigtile 0 0 0 0.500000 0.500000 0 0 0
+( 6464 7360 -576 ) ( 6464 7424 -576 ) ( 6464 7424 -960 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
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+( 6144 7424 -576 ) ( 6144 7360 -576 ) ( 6144 7360 -960 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
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+( 6144 6808 -576 ) ( 6144 7360 -576 ) ( 6144 7360 -960 ) radiant_regression_tests/bigtile 0 0 0 0.500000 0.500000 0 0 0
+( 6144 7360 -576 ) ( 5880 7360 -576 ) ( 5880 7360 -960 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6136 7384 -576 ) ( 6136 6832 -576 ) ( 6136 6832 -960 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
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+( 6144 6336 -960 ) ( 6144 7360 -960 ) ( 6464 7360 -960 ) radiant_regression_tests/bigtile 0 0 0 0.500000 0.500000 0 0 0
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+}
+{
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+( 6144 7360 -472 ) ( 6144 6336 -472 ) ( 6144 6336 -576 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
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+( 6360 6336 -832 ) ( 6360 7256 -832 ) ( 6464 7256 -832 ) radiant_regression_tests/glass 0 0 0 0.500000 0.500000 134217728 257 0
+( 6208 6337 -832 ) ( 6400 6337 -832 ) ( 6400 6337 -896 ) radiant_regression_tests/glass 0 0 0 0.500000 0.500000 134217728 257 0
+( 6463 6336 -816 ) ( 6463 7360 -816 ) ( 6463 7360 -880 ) radiant_regression_tests/glass 0 0 0 0.500000 0.500000 134217728 257 0
+( 6232 7264 -896 ) ( 6232 7264 -832 ) ( 6232 6337 -896 ) radiant_regression_tests/glass 0 0 0 0.500000 0.500000 134217728 257 0
+( 6232 7256 -832 ) ( 6232 7256 -896 ) ( 6463 7256 -832 ) radiant_regression_tests/glass 0 0 0 0.500000 0.500000 134217728 257 0
+}
+}
+{
+"target" "checker"
+"classname" "_decal"
+{
+patchDef2
+{
+radiant_regression_tests/tile_trans
+( 3 3 0 0 0 )
+(
+( ( 6462 7255 -832 50.484375 -56.679688 ) ( 6462 6796.500000 -832 50.484375 -53.097656 ) ( 6462 6338 -832 50.484375 -49.515625 ) )
+( ( 6347.500000 7255 -832 49.589844 -56.679688 ) ( 6347.500000 6796.500000 -832 49.589844 -53.097656 ) ( 6347.500000 6338 -832 49.589844 -49.515625 ) )
+( ( 6233 7255 -832 48.695312 -56.679688 ) ( 6233 6796.500000 -832 48.695312 -53.097656 ) ( 6233 6338 -832 48.695312 -49.515625 ) )
+)
+}
+}
+}
+{
+"targetname" "checker"
+"origin" "6347 6796 -840"
+"classname" "info_null"
+}
+{
+"origin" "6288 6704 -712"
+"classname" "info_player_deathmatch"
+}
+{
+"light" "2000"
+"origin" "6304 6792 -704"
+"classname" "light"
+}
--- /dev/null
+textures/radiant_regression_tests/tile_trans
+{
+ qer_trans 0.9
+ q3map_bounceScale 0.0
+ surfaceparm trans
+ cull disable
+ polygonOffset
+ {
+ map textures/radiant_regression_tests/tile_trans.tga
+ blendFunc blend
+ alphaGen const 1
+ }
+}
+
+textures/radiant_regression_tests/glass
+{
+ qer_editorImage textures/radiant_regression_tests/qer_glass.tga
+ qer_trans 0.6
+ q3map_bounceScale 0.0
+ surfaceparm nolightmap
+ surfaceparm detail
+ surfaceparm trans
+ cull disable
+ {
+ map textures/radiant_regression_tests/glass.tga
+ blendFunc add
+ tcGen environment
+ }
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+I'm testing when windings become degenerate.
--- /dev/null
+{
+"classname" "worldspawn"
+{
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+( -256 -264 0 ) ( -256 256 0 ) ( 256 256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
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+}
+{
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+( 280 -256 512 ) ( 280 256 512 ) ( 320 256 512 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
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+( 264 -256 384 ) ( 264 256 384 ) ( 264 256 -8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 296 256 392 ) ( 256 256 392 ) ( 256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 256 392 ) ( 256 -256 392 ) ( 256 -256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( -256 256 0 ) ( -320 256 0 ) ( -320 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -320 -256 512 ) ( -320 256 512 ) ( -256 256 512 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -320 -256 504 ) ( -256 -256 504 ) ( -256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -256 504 ) ( -256 256 504 ) ( -256 256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -256 256 504 ) ( -320 256 504 ) ( -320 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -264 256 496 ) ( -264 -256 496 ) ( -264 -256 -8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 256 256 512 ) ( -256 256 512 ) ( -256 -256 512 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -224 -256 520 ) ( -224 256 520 ) ( 288 256 520 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -256 584 ) ( 256 -256 584 ) ( 256 -256 512 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
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+( -256 256 584 ) ( -256 -256 584 ) ( -256 -256 512 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
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+( -256 256 512 ) ( -256 328 512 ) ( 256 328 512 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 256 512 ) ( 256 256 512 ) ( 256 256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 256 256 512 ) ( 256 328 512 ) ( 256 328 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
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+( -256 328 512 ) ( -256 256 512 ) ( -256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
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+( -256 -304 512 ) ( -256 -256 512 ) ( 256 -256 512 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
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+( 256 -256 512 ) ( -256 -256 512 ) ( -256 -256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -256 -256 512 ) ( -256 -304 512 ) ( -256 -304 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 64 0 128 ) ( 8 0 128 ) ( 8 -8 128 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( 8 -8 464 ) ( 8 0 464 ) ( 64 0 464 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( -240 8 464 ) ( -240 0 464 ) ( -240 0 160 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( -240 24 128 ) ( 160 8 128 ) ( -240 24 464 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( 160 8 128 ) ( -240 0 128 ) ( 160 8 464 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( 159 11 128 ) ( 159 0 128 ) ( 159 11 464 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+}
+}
+{
+"light" "1000"
+"origin" "-40 0 32"
+"classname" "light"
+}
+{
+"origin" "-40 128 96"
+"classname" "info_player_deathmatch"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The sample map contains a wedge brush. The tip (the sharp edge) of the wedge
+is chopped off by 2 planes, leaving very narrow windings. Each of these 2
+narrow windings is less than 0.1 units tall. However, the wedge has height
+exactly equal to 1/8 unit at the point where it is chopped. Therefore,
+the two narrow sides caused by the chops are expected to be degenerate and the
+top face of the wedge is expected to be unaffected. This should leave a
+"hole" in the narrow part of the wedge.
+
+The hole isn't desirable but it's expected based on the logic in the code.
+Still, if there is a hole in the brush, I consider this regression test to
+be broken.
--- /dev/null
+{
+"classname" "worldspawn"
+{
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+( 7 0 0 ) ( 7 64 0 ) ( -1 64 0 ) radiant_regression_tests/blue 0 0 0 0.500000 0.500000 0 0 0
+( 7 0 1 ) ( 7 0 0 ) ( -1 0 0 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( -1 64 0 ) ( 7 64 0 ) ( 7 64 1 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( 7 0 1 ) ( -1 0 0 ) ( -1 64 0 ) radiant_regression_tests/blue 0 0 0 0.500000 0.500000 0 0 0
+( -1 0 2 ) ( 0 0 0 ) ( 0 64 0 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( 1 0 2 ) ( -7 0 -13 ) ( -7 64 -13 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( 128 72 -72 ) ( -128 72 -72 ) ( -128 8 -72 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -128 120 -64 ) ( -128 184 -64 ) ( 128 184 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -128 -128 -64 ) ( 128 -128 -64 ) ( 128 -128 -72 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 0 -64 ) ( 192 64 -64 ) ( 192 64 -72 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
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+( -192 64 -64 ) ( -192 0 -64 ) ( -192 0 -72 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
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+( 200 -128 240 ) ( 200 192 240 ) ( 200 192 -80 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 192 256 ) ( 192 192 256 ) ( 192 192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 192 256 ) ( 192 -128 256 ) ( 192 -128 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( -192 192 -64 ) ( -280 192 -64 ) ( -280 -128 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
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+( -280 -128 256 ) ( -192 -128 256 ) ( -192 -128 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 -128 256 ) ( -192 192 256 ) ( -192 192 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -192 192 256 ) ( -280 192 256 ) ( -280 192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -200 192 256 ) ( -200 -128 256 ) ( -200 -128 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 192 192 256 ) ( -192 192 256 ) ( -192 -128 256 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -176 -128 264 ) ( -176 192 264 ) ( 208 192 264 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 -128 304 ) ( 192 -128 304 ) ( 192 -128 248 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
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+( -192 192 304 ) ( -192 -128 304 ) ( -192 -128 248 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 192 272 -64 ) ( -192 272 -64 ) ( -192 192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 192 256 ) ( -192 272 256 ) ( 192 272 256 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 192 256 ) ( 192 192 256 ) ( 192 192 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 192 192 256 ) ( 192 272 256 ) ( 192 272 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 200 256 ) ( -192 200 256 ) ( -192 200 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 272 256 ) ( -192 192 256 ) ( -192 192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 192 -128 -64 ) ( -192 -128 -64 ) ( -192 -192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 -192 256 ) ( -192 -128 256 ) ( 192 -128 256 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 -136 280 ) ( 192 -136 280 ) ( 192 -136 -40 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 -192 256 ) ( 192 -128 256 ) ( 192 -128 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 -128 256 ) ( -192 -128 256 ) ( -192 -128 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -192 -128 256 ) ( -192 -192 256 ) ( -192 -192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+{
+"light" "1000"
+"origin" "-8 40 128"
+"classname" "light"
+}
+{
+"origin" "-112 -40 40"
+"classname" "info_player_deathmatch"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The sample map contains a wedge brush. The tip (the sharp edge) of the wedge
+is chopped off by the YZ plane (side 5, or the last side, of the brush).
+The height of the wedge where it is chopped is about 0.9. This makes it
+barely smaller than DEGENERATE_EPSILON. So the face resulting from the chop
+is probably degenerate, and that winding will be removed. I'm now wondering
+what happens to the rest of the brush. 0.9 rounded to the nearest 1/8 unit
+is 1/8, so the top face of the brush should get a slight raise, making the
+"hole" even bigger. The sides will have degenerate edges near the chop, so
+they will become triangles, creating open slivers in the sides.
+
+Although this behavior is a tad nasty, it is expected based on the way the
+code is written. I want to make sure nothing really nasty happens.
+
+I consider this regression test to be broken if there is a "hole" in the brush,
+and I consider this test to be very broken if something more drastic happens.
--- /dev/null
+{
+"classname" "worldspawn"
+{
+( 10 0 0 ) ( 10 0 1 ) ( 10 64 1 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( 10 0 0 ) ( 10 64 0 ) ( -1 64 0 ) radiant_regression_tests/blue 0 0 0 0.500000 0.500000 0 0 0
+( 10 0 1 ) ( 10 0 0 ) ( -1 0 0 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( -1 64 0 ) ( 10 64 0 ) ( 10 64 1 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( 10 0 1 ) ( -1 0 0 ) ( -1 64 0 ) radiant_regression_tests/blue 0 0 0 0.500000 0.500000 0 0 0
+( 0 0 1 ) ( 0 0 0 ) ( 0 64 0 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( 128 72 -72 ) ( -128 72 -72 ) ( -128 8 -72 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -128 120 -64 ) ( -128 184 -64 ) ( 128 184 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -128 -128 -64 ) ( 128 -128 -64 ) ( 128 -128 -72 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 0 -64 ) ( 192 64 -64 ) ( 192 64 -72 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 128 192 -64 ) ( -128 192 -64 ) ( -128 192 -72 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 64 -64 ) ( -192 0 -64 ) ( -192 0 -72 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 256 192 -64 ) ( 192 192 -64 ) ( 192 -128 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 -128 256 ) ( 192 192 256 ) ( 256 192 256 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 -128 256 ) ( 256 -128 256 ) ( 256 -128 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 200 -128 240 ) ( 200 192 240 ) ( 200 192 -80 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 192 256 ) ( 192 192 256 ) ( 192 192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 192 256 ) ( 192 -128 256 ) ( 192 -128 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( -192 192 -64 ) ( -280 192 -64 ) ( -280 -128 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -280 -128 256 ) ( -280 192 256 ) ( -192 192 256 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -280 -128 256 ) ( -192 -128 256 ) ( -192 -128 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 -128 256 ) ( -192 192 256 ) ( -192 192 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -192 192 256 ) ( -280 192 256 ) ( -280 192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -200 192 256 ) ( -200 -128 256 ) ( -200 -128 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 192 192 256 ) ( -192 192 256 ) ( -192 -128 256 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -176 -128 264 ) ( -176 192 264 ) ( 208 192 264 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 -128 304 ) ( 192 -128 304 ) ( 192 -128 248 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 -128 304 ) ( 192 192 304 ) ( 192 192 248 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 192 304 ) ( -192 192 304 ) ( -192 192 248 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 192 304 ) ( -192 -128 304 ) ( -192 -128 248 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 192 272 -64 ) ( -192 272 -64 ) ( -192 192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 192 256 ) ( -192 272 256 ) ( 192 272 256 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 192 256 ) ( 192 192 256 ) ( 192 192 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 192 192 256 ) ( 192 272 256 ) ( 192 272 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 200 256 ) ( -192 200 256 ) ( -192 200 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 272 256 ) ( -192 192 256 ) ( -192 192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 192 -128 -64 ) ( -192 -128 -64 ) ( -192 -192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 -192 256 ) ( -192 -128 256 ) ( 192 -128 256 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -192 -136 280 ) ( 192 -136 280 ) ( 192 -136 -40 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 -192 256 ) ( 192 -128 256 ) ( 192 -128 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 192 -128 256 ) ( -192 -128 256 ) ( -192 -128 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -192 -128 256 ) ( -192 -192 256 ) ( -192 -192 -64 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+{
+"light" "1000"
+"origin" "-8 40 128"
+"classname" "light"
+}
+{
+"origin" "-112 -40 40"
+"classname" "info_player_deathmatch"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The example map, maps/disappearing_sliver.map, contains an example of this bug.
+There are 6 walls in the map, and one tall thin triangular sliver brush in the
+middle of the room (7 brushes total). Only one face of the sliver in the
+middle of the room is a draw surface. The bug is that this sliver surface is
+not rendered in the compiled BSP. Note that the sliver brush was hand-crafted
+to demonstrate the bug. If you re-save the map, Radiant might adjust the
+order in which the planes on the brush are defined, and this might, as a side
+effect, get rid of the immediate bug.
+
+To trigger the bug, compile the map; you don't need -vis or -light. Only
+-bsp (the first q3map2 stage) is necessary to trigger the bug. The only
+entities in the map are 2 lights and a single info_player_deathmatch, so the
+map will compile for any Q3 mod.
+
+
+SOLUTION TO PROBLEM:
+====================
+
+Several days were spent studying this problem in great detail.
+
+The fix for this problem was to make the outcome of the VectorNormalize()
+function libs/mathlib/mathlib.c more accurate. The previous code in this
+function looks something like this:
+
+ vec_t length, ilength; // vec_t is a typedef for 32 bit float.
+
+ /* Compute length */
+
+ ilength = 1.0f/length;
+ out[0] = in[0]*ilength;
+ out[1] = in[1]*ilength;
+ out[2] = in[2]*ilength;
+
+As you can see, we are introducing a lot of extra error into our normalized
+vector by multiplying by the reciprocal length instead of outright dividing
+by the length. The new fixed code looks like this:
+
+ out[0] = in[0]/length;
+ out[1] = in[1]/length;
+ out[2] = in[2]/length;
+
+And we get rid of the recpirocal length ilength altogether. Even the
+slightest math errors are magnified in successive calls to linear algebra
+functions.
+
+The change described above was commmitted to GtkRadiant trunk as revision 363.
+
+
+POSSIBLE SIDE EFFECTS:
+======================
+
+The only negative side effect is that compilation of a map might take longer
+due to an increased number of divide operations. (I'm actually not sure if
+that is indeed the case.) Another side effect might be that if you're used
+to a map being broken (missing triangles) or having "sparklies" between
+brushes, those might be gone now. :-)
+
+
+IN-DEPTH DISCUSSION:
+====================
+
+VectorNormalize() is used very frequently in Radiant and tools code. My goal
+for this fix was to make the least amount of code change but still be able to
+demonstrate a significant improvement in math accuracy (including a fix to
+the test case). At the same time don't risk that any other bugs pop up as a
+side effect of this change.
+
+Here is the sequence of calls (stack trace) that cause the example bug to
+happen:
+
+ main() in main.c -->
+ BSPMain() in bsp.c -->
+ LoadMapFile() in map.c -->
+ ParseMapEntity() in map.c -->
+ ParseBrush() in map.c -->
+ FinishBrush() in map.c -->
+ CreateBrushWindings() in brush.c -->
+ ChopWindingInPlace() in polylib.c
+
+What basically happens in this sequence of calls is that a brush is parsed
+out of the map file, "infinite" planes are created for each brush face, and
+then the planes are "intersected" to find the exact vertex topologies of each
+brush face. The vertex topology of the visible face of the sliver (in the
+example map) gets computed with a significant amount of math error. If we
+did our math with infinite precision, the sliver face would have the following
+vertices:
+
+ (67 -1022 0)
+ (88 -892 -768)
+ (134 -1015 0)
+
+In fact, if you open the map file (disappearing_sliver.map), you can actually
+see these exact points embedded in the third plane defined on brush 0.
+
+I managed to print out the actual computed vertices of the sliver face before
+and after this bug fix. Basically this is printed out after all the
+ChopWindingInPlace() calls in the above stack trace:
+
+ (66.984695 -1021.998657 0.000000)
+ (87.989571 -891.969116 -768.174316)
+ (133.998917 -1014.997314 0.000000)
+
+(If you want to print this out for yourself, use winding_logging.patch.)
+
+The same vertices after the bugfix have the following coordinates:
+
+ (67.000229 -1021.998657 0.000000)
+ (88.000175 -891.999146 -767.997437)
+ (133.999146 -1014.998779 0.000000)
+
+As you can see, the vertices after the fix are substantially more accurate,
+and all it took was an improvement to VectorNormalize().
+
+The problem before the fix was the Z coordinate of the second point, namely
+-768.174316. There is a lot of "snap to nearest 1/8 unit" and "epsilon 0.1"
+code used throughout q3map2. 0.174 is greater than the 0.1 epsilon, and that
+is the problem.
+
+ main() in main.c -->
+ BSPMain() in bsp.c -->
+ ProcessModels() in bsp.c -->
+ ProcessWorldModel() in bsp.c -->
+ ClipSidesIntoTree() in surface.c -->
+ ClipSideIntoTree_r() in surface.c -->
+ ClipWindingEpsilon() in polylib.c
+
+Now what ClipWindingEpsilon() does is, since -768.174316 reaches below the
+plane z = -768 (and over the 0.1 epsilon), it clips the winding_t and creates
+two points where there used to be only one.
+
+ main() in main.c -->
+ BSPMain() in bsp.c -->
+ ProcessModels() in bsp.c -->
+ ProcessWorldModel() in bsp.c
+ FixTJunctions() in tjunction.c
+ FixBrokenSurface() in tjunction.c
+
+FixBrokenSurface() realizes that there are two points very close together
+(in our case, since they were "snapped", the are coincident in fact).
+Therefore it reports the surface to be broken. The drawable surface is
+deleted as a result.
+
+
+RELATED BUGS:
+=============
+
+A lot of the math operations in the Radiant codebase cut corners like this
+example demonstrates. There is a lot more code like this that can be
+improved upon. In fact, it may make sense to use 64 bit floating points in
+some important math operations (and then convert back to 32 bit for the return
+values). Plans are to look at similar code and improve it.
+
+The following "issue" was discovered while doing research for this bug.
+If FixBrokenSurface() sees two points very close together, it attempts to
+partially fix the problem (the code is not complete) and then returns false,
+which means that the surface is broken and should not be used. So in fact
+it attempts to fix the problem partially but none of the fixes are used.
+It seems that FixBrokenSurface() should be fixed to completely fix the case
+where there are two close points, and should report the surface as fixed.
+This might be a destabilizing change however, so if this is indeed fixed, it
+may make sense to activate the fix only if a certain flag is set.
+
+
+MORE NOTES:
+===========
+
+As stated above, the accuracy after revision 363 is:
+
+ (67.000229 -1021.998657 0.000000)
+ (88.000175 -891.999146 -767.997437)
+ (133.999146 -1014.998779 0.000000)
+
+A further change was committed for a related problem in revision 377. After
+this change:
+
+ (66.99955750 -1022.00262451 0.00000000)
+ (87.99969482 -892.00170898 -768.00524902)
+ (133.99958801 -1015.00195312 0.00000000)
+
+The results look similar with respect to the amount of error present.
--- /dev/null
+{
+"classname" "worldspawn"
+{
+( -704 -1152 0 ) ( 4480 -1152 0 ) ( -704 -1152 -768 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 67 -1022 0 ) ( 67 -4096 0 ) ( 88 -892 -768 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 67 -1022 0 ) ( 88 -892 -768 ) ( 134 -1015 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 134217728 0 0
+( 88 -892 -768 ) ( 88 -4096 -768 ) ( 134 -1015 0 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 134 -1015 0 ) ( 134 -4096 0 ) ( 67 -1022 0 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+}
+{
+( 584 -640 -768 ) ( 520 -640 -768 ) ( 520 -1160 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 528 -1160 320 ) ( 528 -640 320 ) ( 592 -640 320 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 528 -1152 0 ) ( 592 -1152 0 ) ( 592 -1152 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 520 -1160 0 ) ( 520 -640 0 ) ( 520 -640 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 584 -640 0 ) ( 520 -640 0 ) ( 520 -640 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -640 0 ) ( 512 -1160 0 ) ( 512 -1160 -768 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( 512 -552 -768 ) ( -296 -552 -768 ) ( -296 -640 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -296 -640 320 ) ( -296 -552 320 ) ( 512 -552 320 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -296 -640 320 ) ( 512 -640 320 ) ( 512 -640 -768 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 512 -640 320 ) ( 512 -552 320 ) ( 512 -552 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 528 -632 320 ) ( -280 -632 320 ) ( -280 -632 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -536 320 ) ( -512 -624 320 ) ( -512 -624 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -512 -648 -768 ) ( -536 -648 -768 ) ( -536 -1152 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -536 -1152 320 ) ( -536 -648 320 ) ( -512 -648 320 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -536 -1152 320 ) ( -512 -1152 320 ) ( -512 -1152 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -1152 320 ) ( -512 -648 320 ) ( -512 -648 -768 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -512 -640 320 ) ( -536 -640 320 ) ( -536 -640 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -520 -648 320 ) ( -520 -1152 320 ) ( -520 -1152 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 512 -640 320 ) ( 24 -640 320 ) ( 24 -1152 320 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 48 -1152 328 ) ( 48 -640 328 ) ( 536 -640 328 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 24 -1152 440 ) ( 512 -1152 440 ) ( 512 -1152 328 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -1152 440 ) ( 512 -640 440 ) ( 512 -640 328 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -640 440 ) ( 24 -640 440 ) ( 24 -640 328 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -640 464 ) ( -512 -1152 464 ) ( -512 -1152 352 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -328 -896 -776 ) ( -512 -896 -776 ) ( -512 -1152 -776 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -1152 -768 ) ( -512 -896 -768 ) ( -328 -896 -768 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -512 -1152 -768 ) ( -328 -1152 -768 ) ( -328 -1152 -776 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -896 -768 ) ( -512 -1152 -768 ) ( -512 -1152 -776 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -1152 -768 ) ( 512 -896 -768 ) ( 512 -896 -776 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -368 -640 -824 ) ( -856 -640 -824 ) ( -856 -640 -960 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -512 -1168 320 ) ( -512 -1584 320 ) ( -512 -1584 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 1152 -1152 320 ) ( 176 -1152 320 ) ( 176 -1152 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 512 -1576 320 ) ( 512 -1160 320 ) ( 512 -1160 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 208 -1160 320 ) ( 1184 -1160 320 ) ( 1184 -1160 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 176 -1568 320 ) ( 176 -1152 320 ) ( 1152 -1152 320 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -1152 -768 ) ( -520 -1152 -768 ) ( -520 -1192 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+{
+"light" "3000"
+"origin" "0 -768 -480"
+"classname" "light"
+}
+{
+"angle" "270"
+"origin" "0 -712 -640"
+"classname" "info_player_deathmatch"
+}
+{
+"classname" "light"
+"origin" "0 -832 160"
+"light" "3000"
+}
--- /dev/null
+Index: tools/quake3/q3map2/brush.c
+===================================================================
+--- tools/quake3/q3map2/brush.c (revision 391)
++++ tools/quake3/q3map2/brush.c (working copy)
+@@ -421,10 +421,16 @@
+ side_t *side;
+ plane_t *plane;
+
+-
++ static int brushord = -1;
++ brushord++;
++
++ Sys_Printf("In CreateBrushWindings() for brush %i\n", brushord);
++
+ /* walk the list of brush sides */
+ for( i = 0; i < brush->numsides; i++ )
+ {
++ Sys_Printf(" Handling side %i on the brush\n", i);
++
+ /* get side and plane */
+ side = &brush->sides[ i ];
+ plane = &mapplanes[ side->planenum ];
+@@ -435,7 +441,13 @@
+ #else
+ w = BaseWindingForPlane( plane->normal, plane->dist );
+ #endif
+-
++
++ Sys_Printf(" Before clipping we have:\n");
++ int z;
++ for (z = 0; z < w->numpoints; z++) {
++ Sys_Printf(" (%.8f %.8f %.8f)\n", w->p[z][0], w->p[z][1], w->p[z][2]);
++ }
++
+ /* walk the list of brush sides */
+ for( j = 0; j < brush->numsides && w != NULL; j++ )
+ {
+@@ -451,7 +463,20 @@
+ #else
+ ChopWindingInPlace( &w, plane->normal, plane->dist, 0 ); // CLIP_EPSILON );
+ #endif
+-
++
++ Sys_Printf(" After clipping w/ side %i we have:\n", j);
++ if (w)
++ {
++ for (z = 0; z < w->numpoints; z++)
++ {
++ Sys_Printf(" (%.8f %.8f %.8f)\n", w->p[z][0], w->p[z][1], w->p[z][2]);
++ }
++ }
++ else
++ {
++ Sys_Printf(" winding is NULL\n");
++ }
++
+ /* ydnar: fix broken windings that would generate trifans */
+ #if EXPERIMENTAL_HIGH_PRECISION_MATH_Q3MAP2_FIXES
+ FixWindingAccu(w);
+Index: tools/quake3/q3map2/map.c
+===================================================================
+--- tools/quake3/q3map2/map.c (revision 391)
++++ tools/quake3/q3map2/map.c (working copy)
+@@ -803,7 +803,11 @@
+ char shader[ MAX_QPATH ];
+ int flags;
+
++ static int brushord = -1;
++ brushord++;
+
++ Sys_Printf("In ParseRawBrush() for brush %i\n", brushord);
++
+ /* initial setup */
+ buildBrush->numsides = 0;
+ buildBrush->detail = qfalse;
+@@ -812,9 +816,12 @@
+ if( g_bBrushPrimit == BPRIMIT_NEWBRUSHES )
+ MatchToken( "{" );
+
++ int sideord = -1;
++
+ /* parse sides */
+ while( 1 )
+ {
++ sideord++;
+ if( !GetToken( qtrue ) )
+ break;
+ if( !strcmp( token, "}" ) )
+@@ -917,7 +924,16 @@
+ }
+
+ /* find the plane number */
++ Sys_Printf(" Side %i:\n", sideord);
++ Sys_Printf(" (%f %f %f)\n", planePoints[0][0], planePoints[0][1], planePoints[0][2]);
++ Sys_Printf(" (%f %f %f)\n", planePoints[1][0], planePoints[1][1], planePoints[1][2]);
++ Sys_Printf(" (%f %f %f)\n", planePoints[2][0], planePoints[2][1], planePoints[2][2]);
+ planenum = MapPlaneFromPoints( planePoints );
++ Sys_Printf(" normal: (%.10f %.10f %.10f)\n",
++ mapplanes[planenum].normal[0],
++ mapplanes[planenum].normal[1],
++ mapplanes[planenum].normal[2]);
++ Sys_Printf(" dist: %.10f\n", mapplanes[planenum].dist);
+ side->planenum = planenum;
+
+ /* bp: get the texture mapping for this texturedef / plane combination */
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The example map, maps/disappearing_sliver2.map, contains an example of this
+bug. The triangle sliver surface in the middle of the room is not rendered
+in the final BSP.
+
+To trigger the bug, compile the map; you don't need -vis or -light. Only
+-bsp (the first q3map2 stage) is necessary to trigger the bug. The only
+entities in the map are a light and a info_player_deathmatch, so the map will
+compile for any Q3 mod.
+
+
+SOLUTION TO PROBLEM:
+====================
+
+It was discovered that BaseWindingForPlane() in polylib.c did some sloppy
+mathematics with significant loss of precision. Those problems have been
+addressed in commits to revisions 371 and 377.
+
+
+POSSIBLE SIDE EFFECTS:
+======================
+
+Great care was taken to preserve the exact behavior of the original
+BaseWindingForPlane() function except for the loss of precision. Therefore
+no negative side effects should be seen. In fact performance may be
+increased.
+
+
+IN-DEPTH DISCUSSION:
+====================
+
+Turns out that the problem is very similar to the original disappearing_sliver
+regression test. You should read that README.txt to familiarize yourself
+with the situation.
+
+The thing we need to look at is side 0 of brush 0, if you applied
+winding_logging.patch from disappearing_sliver regression test:
+
+ In ParseRawBrush() for brush 0
+ Side 0:
+ (6784.000000 16241.000000 -1722.000000)
+ (6144.000000 16083.000000 -1443.000000)
+ (6144.000000 16122.000000 -1424.000000)
+
+That is the exact plane defninition of our problem sliver, and in fact those
+are also the correct points for the actual vertices of the triangle.
+
+Now the results of the winding for this surface after all the clipping takes
+place:
+
+ (6784.12500000 16241.02343750 -1722.06250000)
+ (6144.00000000 16082.99218750 -1443.00781250)
+ (6144.00000000 16122.00000000 -1424.00390625)
+
+As you can see, 6784.12500000 is more than epsilon distance (0.1) away from
+the correct point. This is a big problem.
+
+After we apply the fix committed in revision 371, the result after clipping
+is this:
+
+ (6784.06250000 16241.01171875 -1722.03515625)
+ (6144.00000000 16082.99609375 -1443.00781250)
+ (6144.00000000 16122.00000000 -1424.00585938)
+
+As you can see, all points but one have an increase in accuracy. This is
+still not accurate enough in my opinion, but is a step in the right direction.
+
+After the fix committed in revision 377, which is a further attempt to address
+BaseWindingForPlane(), we get the following accuracy:
+
+ (6784.00000000 16241.00000000 -1722.00000000)
+ (6144.00000000 16083.00000000 -1443.00000000)
+ (6144.00000000 16122.00000000 -1424.00000000)
+
+It's just a fluke for this particular case, but obviouly revision 377 looks
+favorably upon this regression test, because there is zero percent error.
+
+
+MORE NOTES:
+===========
+
+I attempted to improve upon revision 371 by streamlining the code in
+BaseWindingForPlane() some more. Those attempts were committed as revision
+375. After revision 375:
+
+ (6784.09375000 16241.01757812 -1722.04687500)
+ (6144.00000000 16082.99414062 -1443.00390625)
+ (6144.00000000 16122.00000000 -1424.00097656)
+
+Revision 375 has since been reverted (undone) because of the loss in
+accuracy. Revision 377 is a fix for those failed attempts.
--- /dev/null
+{
+"message" "Icy Fantasy by Rambetter"
+"classname" "worldspawn"
+{
+( 6784 16241 -1722 ) ( 6144 16083 -1443 ) ( 6144 16122 -1424 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 134217728 0 0
+( 6784 16241 -1722 ) ( 6784 16241 -2048 ) ( 6144 16083 -1443 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 6144 16083 -1443 ) ( 6144 16083 -2048 ) ( 6144 16122 -1424 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 6144 16122 -1424 ) ( 6144 16122 -2048 ) ( 6784 16241 -1722 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 6144 16122 -2048 ) ( 6144 16083 -2048 ) ( 6784 16241 -2048 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+}
+{
+( 6136 16424 168 ) ( 6136 15928 168 ) ( 6136 15928 -3544 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6112 16896 160 ) ( 6000 16896 160 ) ( 6000 16896 -3552 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15936 160 ) ( 6144 16432 160 ) ( 6144 16432 -3552 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6032 15936 160 ) ( 6144 15936 160 ) ( 6144 15936 -3552 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6128 15936 -896 ) ( 6128 16432 -896 ) ( 6240 16432 -896 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6160 16432 -2048 ) ( 6048 16432 -2048 ) ( 6048 15936 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 6784 16672 -1296 ) ( 6784 16176 -1296 ) ( 6784 16176 -1776 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6144 16896 -1312 ) ( 6136 16896 -1312 ) ( 6136 16896 -1792 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6792 16160 -1296 ) ( 6792 16656 -1296 ) ( 6792 16656 -1776 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6136 15936 -1280 ) ( 6144 15936 -1280 ) ( 6144 15936 -1760 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6136 16192 -896 ) ( 6136 16688 -896 ) ( 6144 16688 -896 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16672 -2048 ) ( 6136 16672 -2048 ) ( 6136 16176 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 6144 15936 -896 ) ( 6144 15880 -896 ) ( 6144 15880 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 15936 -896 ) ( 6144 15936 -896 ) ( 6144 15936 -2048 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6784 15880 -896 ) ( 6784 15936 -896 ) ( 6784 15936 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15928 -896 ) ( 6784 15928 -896 ) ( 6784 15928 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15880 -896 ) ( 6144 15936 -896 ) ( 6784 15936 -896 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 15936 -2048 ) ( 6144 15936 -2048 ) ( 6144 15880 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 6144 16960 -896 ) ( 6144 16896 -896 ) ( 6144 16896 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16904 -896 ) ( 6144 16904 -896 ) ( 6144 16904 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16896 -896 ) ( 6784 16960 -896 ) ( 6784 16960 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16896 -896 ) ( 6784 16896 -896 ) ( 6784 16896 -2048 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6144 16896 -896 ) ( 6144 16960 -896 ) ( 6784 16960 -896 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16960 -2048 ) ( 6144 16960 -2048 ) ( 6144 16896 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 6144 16896 -784 ) ( 6144 16536 -784 ) ( 6144 16536 -896 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16896 -784 ) ( 6144 16896 -784 ) ( 6144 16896 -896 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16536 -784 ) ( 6784 16896 -784 ) ( 6784 16896 -896 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15936 -744 ) ( 6784 15936 -744 ) ( 6784 15936 -856 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16552 -888 ) ( 6144 16912 -888 ) ( 6784 16912 -888 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16896 -896 ) ( 6144 16896 -896 ) ( 6144 16536 -896 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( 6144 16544 -2048 ) ( 6144 15936 -2048 ) ( 6144 15936 -2376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16896 -2048 ) ( 6144 16896 -2048 ) ( 6144 16896 -2376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 15936 -2048 ) ( 6784 16544 -2048 ) ( 6784 16544 -2376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15936 -2048 ) ( 6784 15936 -2048 ) ( 6784 15936 -2376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15936 -2048 ) ( 6144 16544 -2048 ) ( 6784 16544 -2048 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6784 16584 -2056 ) ( 6144 16584 -2056 ) ( 6144 15976 -2056 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+{
+"classname" "info_player_deathmatch"
+"origin" "6432 16168 -1472"
+"angle" "180"
+}
+{
+"classname" "light"
+"origin" "6440 16160 -1192"
+"light" "1000"
+}
--- /dev/null
+Random notes for Rambetter, don't expect to understand this:
+============================================================
+
+Brush 0 is the problem.
+
+Side 0 is the problem (under surf tri).
+Side 1 is the +y 4-face.
+Side 2 is the -x 4-face.
+Side 3 is the -y 4-face.
+side 4 is the +z tri.
+
+(6144, 16122) -> (6784, 16241)
+x "climb" of side 1 is 6784 - 6144 = 640.
+y "climb" of side 1 is 16241 - 16122 = 119.
+
+x/y "climb rate" of side 1 is 640 / 119 = 5.378151261.
+
+After clipping side 0 against side 1, we get
+************
+**** (-262144, -33762.8125) -> (262144, 63722)
+************
+The slope of that is (262144 + 262144) / (63722 + 33762.8125) = 5.378150571.
+
+(-262144, y) -> (6784, 16241)
+So (6784 + 262144) / (16241 - y) = 640 / 119
+So y = 16241 - ((119 * (6784 + 262144)) / 640) = -33762.8
+
+(6144, 16122) -> (262144, y)
+So (262144 - 6144) / (y - 16122) = 640 / 119
+So y = 16122 + ((119 * (262144 - 6144)) / 640) = 63722
+
+After clipping side 0 against side 1 should have
+************
+**** (-262144, -33762.8) -> (262144, 63722)
+************
+
+Random notes for Rambetter, don't expect to understand this:
+============================================================
+
+Brush 0 is the problem.
+
+Side 0 is the problem (under surf tri).
+Side 1 is the +y 4-face.
+Side 2 is the -x 4-face.
+Side 3 is the -y 4-face.
+side 4 is the +z tri.
+
+(6144, 16122) -> (6784, 16241)
+x "climb" of side 1 is 6784 - 6144 = 640.
+y "climb" of side 1 is 16241 - 16122 = 119.
+
+x/y "climb rate" of side 1 is 640 / 119 = 5.378151261.
+
+After clipping side 0 against side 1, we get
+************
+**** (-262144, -33762.8125) -> (262144, 63722)
+************
+The slope of that is (262144 + 262144) / (63722 + 33762.8125) = 5.378150571.
+
+(-262144, y) -> (6784, 16241)
+So (6784 + 262144) / (16241 - y) = 640 / 119
+So y = 16241 - ((119 * (6784 + 262144)) / 640) = -33762.8
+
+(6144, 16122) -> (262144, y)
+So (262144 - 6144) / (y - 16122) = 640 / 119
+So y = 16122 + ((119 * (262144 - 6144)) / 640) = 63722
+
+After clipping side 0 against side 1 should have
+************
+**** (-262144, -33762.8) -> (262144, 63722)
+************
+
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The example map, maps/disappearing_sliver3.map, contains an example of this
+bug. The triangle sliver surface in the middle of the room is not rendered
+in the final BSP.
+
+To trigger the bug, compile the map; you don't need -vis or -light. Only
+-bsp (the first q3map2 stage) is necessary to trigger the bug. The only
+entities in the map are a light and a info_player_deathmatch, so the map will
+compile for any Q3 mod.
+
+
+SOLUTION TO PROBLEM:
+====================
+
+More work has been done to BaseWindingForPlane() to make it more accurate.
+This function is in polylib.c. The changes to fix this regression test were
+committed in revision 377; however, those changes are not "good enough".
+
+
+IN-DEPTH DISCUSSION:
+====================
+
+This is the problem triangle:
+
+ In ParseRawBrush() for brush 0
+ Side 0:
+ (6144.000000 16122.000000 -2048.000000)
+ (6144.000000 16083.000000 -2048.000000)
+ (6784.000000 16241.000000 -2048.000000)
+
+Computed winding before fix:
+
+ (6784.16406250 16241.04101562 -2048.00000000)
+ (6144.00000000 16122.00976562 -2048.00000000)
+ (6144.00000000 16083.00000000 -2048.00000000)
+
+Obviously the 6784.16406250 is beyond epsilon error.
+
+After revision 377:
+
+ (6783.85937500 16240.96484375 -2048.00000000)
+ (6144.00000000 16121.99218750 -2048.00000000)
+ (6144.00000000 16083.00000000 -2048.00000000)
+
+Even though this fixes the regression test, the error in 6783.85937500 is
+still greater than epsilon (but fortunately in the opposite direction). So
+I don't consider this test case to be fixed quite yet.
--- /dev/null
+{
+"classname" "worldspawn"
+{
+( 6144 16122 -2048 ) ( 6144 16083 -2048 ) ( 6784 16241 -2048 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 134217728 0 0
+( 6144 16122 -1424 ) ( 6144 16122 -2048 ) ( 6784 16241 -1722 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 6144 16083 -1443 ) ( 6144 16083 -2048 ) ( 6144 16122 -1424 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 6784 16241 -1722 ) ( 6784 16241 -2048 ) ( 6144 16083 -1443 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 6784 16241 -1722 ) ( 6144 16083 -1443 ) ( 6144 16122 -1424 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+}
+{
+( 6160 16432 -2240 ) ( 6048 16432 -2240 ) ( 6048 15936 -2240 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6128 15936 -1376 ) ( 6128 16432 -1376 ) ( 6240 16432 -1376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6032 15936 160 ) ( 6144 15936 160 ) ( 6144 15936 -3552 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15936 -512 ) ( 6144 16432 -512 ) ( 6144 16432 -4224 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6112 16896 160 ) ( 6000 16896 160 ) ( 6000 16896 -3552 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6136 16424 168 ) ( 6136 15928 168 ) ( 6136 15928 -3544 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 6144 16672 -2240 ) ( 6136 16672 -2240 ) ( 6136 16176 -2240 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6136 16192 -1376 ) ( 6136 16688 -1376 ) ( 6144 16688 -1376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6136 15936 -1280 ) ( 6144 15936 -1280 ) ( 6144 15936 -1760 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6792 16160 -1296 ) ( 6792 16656 -1296 ) ( 6792 16656 -1776 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16896 -1312 ) ( 6136 16896 -1312 ) ( 6136 16896 -1792 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16672 -1968 ) ( 6784 16176 -1968 ) ( 6784 16176 -2448 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( 6784 15936 -2240 ) ( 6144 15936 -2240 ) ( 6144 15880 -2240 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15880 -1376 ) ( 6144 15936 -1376 ) ( 6784 15936 -1376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15928 -896 ) ( 6784 15928 -896 ) ( 6784 15928 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 15880 -1568 ) ( 6784 15936 -1568 ) ( 6784 15936 -2720 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 15936 -896 ) ( 6144 15936 -896 ) ( 6144 15936 -2048 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6144 15936 -1568 ) ( 6144 15880 -1568 ) ( 6144 15880 -2720 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 6784 16960 -2240 ) ( 6144 16960 -2240 ) ( 6144 16896 -2240 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16896 -1376 ) ( 6144 16960 -1376 ) ( 6784 16960 -1376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16896 -896 ) ( 6784 16896 -896 ) ( 6784 16896 -2048 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6784 16896 -1568 ) ( 6784 16960 -1568 ) ( 6784 16960 -2720 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16904 -896 ) ( 6144 16904 -896 ) ( 6144 16904 -2048 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16960 -1568 ) ( 6144 16896 -1568 ) ( 6144 16896 -2720 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 6784 16896 -1376 ) ( 6144 16896 -1376 ) ( 6144 16536 -1376 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6144 16552 -1368 ) ( 6144 16912 -1368 ) ( 6784 16912 -1368 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15936 -1224 ) ( 6784 15936 -1224 ) ( 6784 15936 -1336 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16536 -1264 ) ( 6784 16896 -1264 ) ( 6784 16896 -1376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16896 -1264 ) ( 6144 16896 -1264 ) ( 6144 16896 -1376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16896 -1264 ) ( 6144 16536 -1264 ) ( 6144 16536 -1376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 6784 16584 -2248 ) ( 6144 16584 -2248 ) ( 6144 15976 -2248 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15936 -2240 ) ( 6144 16544 -2240 ) ( 6784 16544 -2240 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6144 15936 -2240 ) ( 6784 15936 -2240 ) ( 6784 15936 -2568 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 15936 -2240 ) ( 6784 16544 -2240 ) ( 6784 16544 -2568 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16896 -2240 ) ( 6144 16896 -2240 ) ( 6144 16896 -2568 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16544 -2240 ) ( 6144 15936 -2240 ) ( 6144 15936 -2568 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+{
+"angle" "180"
+"origin" "6432 16168 -2144"
+"classname" "info_player_deathmatch"
+}
+{
+"light" "1000"
+"origin" "6504 16160 -2152"
+"classname" "light"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The 4-sided brush in the middle of the room (brush 0) has a duplicate plane.
+The last side (side 4) is a duplicate of the third side (side 2) with the
+vertexes re-arranged.
+
+I wanted to make sure that ChopWindingInPlaceAccu() is doing the right thing
+by setting a winding to NULL when all its points lie on the plane that the
+winding is being chopped with. This seems to be the case. My concern was
+that both windings for that duplicate plane will be NULL'ed out.
+
+Seems that some other code might be fixing duplicate planes. That's OK.
--- /dev/null
+{
+"classname" "worldspawn"
+{
+( 136 128 64 ) ( -128 128 64 ) ( -128 -192 64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 136 128 384 ) ( -128 128 384 ) ( -128 128 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 128 -192 0 ) ( -128 128 0 ) ( 128 -192 384 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -128 128 256 ) ( 128 128 64 ) ( -128 -192 256 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 128 -192 384 ) ( 128 -192 0 ) ( -128 128 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( 256 256 -8 ) ( -256 256 -8 ) ( -256 -256 -8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -256 0 ) ( -256 256 0 ) ( 256 256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -256 -256 8 ) ( 256 -256 8 ) ( 256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -256 8 ) ( 256 256 8 ) ( 256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 256 8 ) ( -256 256 8 ) ( -256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 256 8 ) ( -256 -256 8 ) ( -256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -256 256 0 ) ( -280 256 0 ) ( -280 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -280 -256 384 ) ( -280 256 384 ) ( -256 256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -280 -256 384 ) ( -256 -256 384 ) ( -256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -256 384 ) ( -256 256 384 ) ( -256 256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -256 256 384 ) ( -280 256 384 ) ( -280 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -264 256 392 ) ( -264 -256 392 ) ( -264 -256 8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 280 256 0 ) ( 256 256 0 ) ( 256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -256 384 ) ( 256 256 384 ) ( 280 256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -256 384 ) ( 280 -256 384 ) ( 280 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 264 -256 384 ) ( 264 256 384 ) ( 264 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 280 256 384 ) ( 256 256 384 ) ( 256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 256 384 ) ( 256 -256 384 ) ( 256 -256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( 256 256 384 ) ( -256 256 384 ) ( -256 -256 384 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -248 -256 392 ) ( -248 256 392 ) ( 264 256 392 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -256 424 ) ( 256 -256 424 ) ( 256 -256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -256 424 ) ( 256 256 424 ) ( 256 256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 256 424 ) ( -256 256 424 ) ( -256 256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 256 424 ) ( -256 -256 424 ) ( -256 -256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 256 296 0 ) ( -256 296 0 ) ( -256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 256 384 ) ( -256 296 384 ) ( 256 296 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 256 384 ) ( 256 256 384 ) ( 256 256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 256 256 384 ) ( 256 296 384 ) ( 256 296 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 264 392 ) ( -256 264 392 ) ( -256 264 8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 296 384 ) ( -256 256 384 ) ( -256 256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 256 -256 0 ) ( -256 -256 0 ) ( -256 -296 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -296 384 ) ( -256 -256 384 ) ( 256 -256 384 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -256 -264 392 ) ( 256 -264 392 ) ( 256 -264 8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -296 384 ) ( 256 -256 384 ) ( 256 -256 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 256 -256 384 ) ( -256 -256 384 ) ( -256 -256 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -256 -256 384 ) ( -256 -296 384 ) ( -256 -296 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+{
+"origin" "-8 16 256"
+"classname" "info_player_deathmatch"
+}
+{
+"light" "1000"
+"origin" "-32 -40 256"
+"classname" "light"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+There are 3 model wedges in the map that are auto-clipped. The middle wedge
+with the 45 degree slope is the problem. The slope face does not become solid;
+therefore, there is a nonsolid "hole" on the wedge part. The other two wedges
+are fine. 45 degrees seems to be a problem for model clipping.
--- /dev/null
+{
+"classname" "worldspawn"
+{
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+ *MESH_NUMTVFACES 2\r
+ *MESH_TFACELIST {\r
+ *MESH_TFACE 0 0 2 1\r
+ *MESH_TFACE 1 2 3 1\r
+ }\r
+ }\r
+ *PROP_MOTIONBLUR 0\r
+ *PROP_CASTSHADOW 1\r
+ *PROP_RECVSHADOW 1\r
+ *MATERIAL_REF 0\r
+}\r
+*GEOMOBJECT {\r
+ *NODE_NAME "mat0model0surf3"\r
+ *NODE_TM {\r
+ *NODE_NAME "mat0model0surf3"\r
+ *INHERIT_POS 0 0 0\r
+ *INHERIT_ROT 0 0 0\r
+ *INHERIT_SCL 0 0 0\r
+ *TM_ROW0 1.0 0 0\r
+ *TM_ROW1 0 1.0 0\r
+ *TM_ROW2 0 0 1.0\r
+ *TM_ROW3 0 0 0\r
+ *TM_POS 0.000000 0.000000 0.000000\r
+ }\r
+ *MESH {\r
+ *TIMEVALUE 0\r
+ *MESH_NUMVERTEX 4\r
+ *MESH_NUMFACES 2\r
+ *COMMENT "SURFACETYPE MST_PLANAR"\r
+ *MESH_VERTEX_LIST {\r
+ *MESH_VERTEX 0 0.000000 0.000000 64.000000\r
+ *MESH_VERTEX 1 0.000000 0.000000 0.000000\r
+ *MESH_VERTEX 2 0.000000 128.000000 64.000000\r
+ *MESH_VERTEX 3 0.000000 128.000000 0.000000\r
+ }\r
+ *MESH_NORMALS {\r
+ *MESH_FACENORMAL 0 0.800000 0.000000 0.600000\r
+ *MESH_FACENORMAL 1 0.800000 0.000000 0.600000\r
+ *MESH_VERTEXNORMAL 0 -1.000000 0.000000 0.000000\r
+ *MESH_VERTEXNORMAL 1 -1.000000 0.000000 0.000000\r
+ *MESH_VERTEXNORMAL 2 -1.000000 0.000000 0.000000\r
+ *MESH_VERTEXNORMAL 3 -1.000000 0.000000 0.000000\r
+ }\r
+ *MESH_FACE_LIST {\r
+ *MESH_FACE 0 A: 0 B: 2 C: 1 AB: 1 BC: 1 CA: 1 *MESH_SMOOTHING 0 *MESH_MTLID 0\r
+ *MESH_FACE 1 A: 2 B: 3 C: 1 AB: 1 BC: 1 CA: 1 *MESH_SMOOTHING 0 *MESH_MTLID 0\r
+ }\r
+ *MESH_NUMTVERTEX 4\r
+ *MESH_TVERTLIST {\r
+ *MESH_TVERT 0 -2.000000 2.000000 1.000000\r
+ *MESH_TVERT 1 -2.000000 0.000000 1.000000\r
+ *MESH_TVERT 2 2.000000 2.000000 1.000000\r
+ *MESH_TVERT 3 2.000000 0.000000 1.000000\r
+ }\r
+ *MESH_NUMTVFACES 2\r
+ *MESH_TFACELIST {\r
+ *MESH_TFACE 0 0 2 1\r
+ *MESH_TFACE 1 2 3 1\r
+ }\r
+ }\r
+ *PROP_MOTIONBLUR 0\r
+ *PROP_CASTSHADOW 1\r
+ *PROP_RECVSHADOW 1\r
+ *MATERIAL_REF 0\r
+}\r
+*GEOMOBJECT {\r
+ *NODE_NAME "mat0model0surf4"\r
+ *NODE_TM {\r
+ *NODE_NAME "mat0model0surf4"\r
+ *INHERIT_POS 0 0 0\r
+ *INHERIT_ROT 0 0 0\r
+ *INHERIT_SCL 0 0 0\r
+ *TM_ROW0 1.0 0 0\r
+ *TM_ROW1 0 1.0 0\r
+ *TM_ROW2 0 0 1.0\r
+ *TM_ROW3 0 0 0\r
+ *TM_POS 0.000000 0.000000 0.000000\r
+ }\r
+ *MESH {\r
+ *TIMEVALUE 0\r
+ *MESH_NUMVERTEX 4\r
+ *MESH_NUMFACES 2\r
+ *COMMENT "SURFACETYPE MST_PLANAR"\r
+ *MESH_VERTEX_LIST {\r
+ *MESH_VERTEX 0 112.000000 0.000000 0.000000\r
+ *MESH_VERTEX 1 0.000000 0.000000 0.000000\r
+ *MESH_VERTEX 2 64.000000 0.000000 64.000000\r
+ *MESH_VERTEX 3 0.000000 0.000000 64.000000\r
+ }\r
+ *MESH_NORMALS {\r
+ *MESH_FACENORMAL 0 0.800000 0.000000 0.600000\r
+ *MESH_FACENORMAL 1 0.800000 0.000000 0.600000\r
+ *MESH_VERTEXNORMAL 0 0.000000 -1.000000 0.000000\r
+ *MESH_VERTEXNORMAL 1 0.000000 -1.000000 0.000000\r
+ *MESH_VERTEXNORMAL 2 0.000000 -1.000000 0.000000\r
+ *MESH_VERTEXNORMAL 3 0.000000 -1.000000 0.000000\r
+ }\r
+ *MESH_FACE_LIST {\r
+ *MESH_FACE 0 A: 0 B: 2 C: 1 AB: 1 BC: 1 CA: 1 *MESH_SMOOTHING 0 *MESH_MTLID 0\r
+ *MESH_FACE 1 A: 2 B: 3 C: 1 AB: 1 BC: 1 CA: 1 *MESH_SMOOTHING 0 *MESH_MTLID 0\r
+ }\r
+ *MESH_NUMTVERTEX 4\r
+ *MESH_TVERTLIST {\r
+ *MESH_TVERT 0 2.500000 0.000000 1.000000\r
+ *MESH_TVERT 1 -1.000000 0.000000 1.000000\r
+ *MESH_TVERT 2 1.000000 2.000000 1.000000\r
+ *MESH_TVERT 3 -1.000000 2.000000 1.000000\r
+ }\r
+ *MESH_NUMTVFACES 2\r
+ *MESH_TFACELIST {\r
+ *MESH_TFACE 0 0 2 1\r
+ *MESH_TFACE 1 2 3 1\r
+ }\r
+ }\r
+ *PROP_MOTIONBLUR 0\r
+ *PROP_CASTSHADOW 1\r
+ *PROP_RECVSHADOW 1\r
+ *MATERIAL_REF 0\r
+}\r
+*GEOMOBJECT {\r
+ *NODE_NAME "mat0model0surf5"\r
+ *NODE_TM {\r
+ *NODE_NAME "mat0model0surf5"\r
+ *INHERIT_POS 0 0 0\r
+ *INHERIT_ROT 0 0 0\r
+ *INHERIT_SCL 0 0 0\r
+ *TM_ROW0 1.0 0 0\r
+ *TM_ROW1 0 1.0 0\r
+ *TM_ROW2 0 0 1.0\r
+ *TM_ROW3 0 0 0\r
+ *TM_POS 0.000000 0.000000 0.000000\r
+ }\r
+ *MESH {\r
+ *TIMEVALUE 0\r
+ *MESH_NUMVERTEX 4\r
+ *MESH_NUMFACES 2\r
+ *COMMENT "SURFACETYPE MST_PLANAR"\r
+ *MESH_VERTEX_LIST {\r
+ *MESH_VERTEX 0 0.000000 128.000000 0.000000\r
+ *MESH_VERTEX 1 0.000000 0.000000 0.000000\r
+ *MESH_VERTEX 2 112.000000 128.000000 0.000000\r
+ *MESH_VERTEX 3 112.000000 0.000000 0.000000\r
+ }\r
+ *MESH_NORMALS {\r
+ *MESH_FACENORMAL 0 0.800000 0.000000 0.600000\r
+ *MESH_FACENORMAL 1 0.800000 0.000000 0.600000\r
+ *MESH_VERTEXNORMAL 0 0.000000 0.000000 -1.000000\r
+ *MESH_VERTEXNORMAL 1 0.000000 0.000000 -1.000000\r
+ *MESH_VERTEXNORMAL 2 0.000000 0.000000 -1.000000\r
+ *MESH_VERTEXNORMAL 3 0.000000 0.000000 -1.000000\r
+ }\r
+ *MESH_FACE_LIST {\r
+ *MESH_FACE 0 A: 0 B: 2 C: 1 AB: 1 BC: 1 CA: 1 *MESH_SMOOTHING 0 *MESH_MTLID 0\r
+ *MESH_FACE 1 A: 2 B: 3 C: 1 AB: 1 BC: 1 CA: 1 *MESH_SMOOTHING 0 *MESH_MTLID 0\r
+ }\r
+ *MESH_NUMTVERTEX 4\r
+ *MESH_TVERTLIST {\r
+ *MESH_TVERT 0 -1.000000 3.000000 1.000000\r
+ *MESH_TVERT 1 -1.000000 -1.000000 1.000000\r
+ *MESH_TVERT 2 2.500000 3.000000 1.000000\r
+ *MESH_TVERT 3 2.500000 -1.000000 1.000000\r
+ }\r
+ *MESH_NUMTVFACES 2\r
+ *MESH_TFACELIST {\r
+ *MESH_TFACE 0 0 2 1\r
+ *MESH_TFACE 1 2 3 1\r
+ }\r
+ }\r
+ *PROP_MOTIONBLUR 0\r
+ *PROP_CASTSHADOW 1\r
+ *PROP_RECVSHADOW 1\r
+ *MATERIAL_REF 0\r
+}\r
--- /dev/null
+textures/radiant_regression_tests/tile_model
+{
+ q3map_clipModel
+ q3map_forceMeta
+ {
+ map $lightmap
+ }
+ {
+ map textures/radiant_regression_tests/tile_model.tga
+ blendFunc filter
+ }
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+In the disappearing_triangle regression test I outlined a potential problem
+in the tjunction.c code, having to do with 2 points being too close together
+on a winding, and that winding becoming invalid (drawsurf disappearing).
+
+This example map is the same as disappearing_triangle.map, except that the
+floor is raised by 1 unit. Therefore the floor intersects the sliver triangle.
+The resulting chopped sliver has a very short edge that is "degenerate" and
+causes that draw surf to go away due to problems in the tjunction.c code.
+
+This is speculation at this point. I will provide more info after the bug has
+been fixed.
--- /dev/null
+{
+"classname" "worldspawn"
+{
+( 134 -1015 0 ) ( 134 -4096 0 ) ( 67 -1022 0 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 88 -892 -768 ) ( 88 -4096 -768 ) ( 134 -1015 0 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( 67 -1022 0 ) ( 88 -892 -768 ) ( 134 -1015 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 134217728 0 0
+( 67 -1022 0 ) ( 67 -4096 0 ) ( 88 -892 -768 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+( -704 -1152 0 ) ( 4480 -1152 0 ) ( -704 -1152 -768 ) common/caulk 0 0 0 0.500000 0.500000 134217728 4 0
+}
+{
+( 512 -640 0 ) ( 512 -1160 0 ) ( 512 -1160 -768 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 584 -640 0 ) ( 520 -640 0 ) ( 520 -640 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 520 -1160 0 ) ( 520 -640 0 ) ( 520 -640 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 528 -1152 0 ) ( 592 -1152 0 ) ( 592 -1152 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 528 -1160 320 ) ( 528 -640 320 ) ( 592 -640 320 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 583 -640 -768 ) ( 519 -640 -768 ) ( 519 -1160 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -512 -536 320 ) ( -512 -624 320 ) ( -512 -624 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 528 -632 320 ) ( -280 -632 320 ) ( -280 -632 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -640 320 ) ( 512 -552 320 ) ( 512 -552 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -296 -640 320 ) ( 512 -640 320 ) ( 512 -640 -768 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -296 -640 320 ) ( -296 -552 320 ) ( 512 -552 320 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 511 -552 -768 ) ( -297 -552 -768 ) ( -297 -640 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -520 -648 320 ) ( -520 -1152 320 ) ( -520 -1152 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -640 320 ) ( -536 -640 320 ) ( -536 -640 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -1152 320 ) ( -512 -648 320 ) ( -512 -648 -768 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -536 -1152 320 ) ( -512 -1152 320 ) ( -512 -1152 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -536 -1152 320 ) ( -536 -648 320 ) ( -512 -648 320 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -648 -768 ) ( -536 -648 -768 ) ( -536 -1152 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -512 -640 464 ) ( -512 -1152 464 ) ( -512 -1152 352 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -640 440 ) ( 24 -640 440 ) ( 24 -640 328 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -1152 440 ) ( 512 -640 440 ) ( 512 -640 328 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 24 -1152 440 ) ( 512 -1152 440 ) ( 512 -1152 328 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 48 -1152 328 ) ( 48 -640 328 ) ( 536 -640 328 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -640 320 ) ( 24 -640 320 ) ( 24 -1152 320 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( -368 -640 -824 ) ( -856 -640 -824 ) ( -856 -640 -960 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -1152 -768 ) ( 512 -896 -768 ) ( 512 -896 -776 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -896 -768 ) ( -512 -1152 -768 ) ( -512 -1152 -776 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -1152 -768 ) ( -328 -1152 -768 ) ( -328 -1152 -776 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -511 -1152 -767 ) ( -511 -896 -767 ) ( -327 -896 -767 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -328 -896 -776 ) ( -512 -896 -776 ) ( -512 -1152 -776 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -256 -1152 -768 ) ( -520 -1152 -768 ) ( -520 -1192 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 176 -1568 320 ) ( 176 -1152 320 ) ( 1152 -1152 320 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 208 -1160 320 ) ( 1184 -1160 320 ) ( 1184 -1160 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -1576 320 ) ( 512 -1160 320 ) ( 512 -1160 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 1152 -1152 320 ) ( 176 -1152 320 ) ( 176 -1152 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -512 -1168 320 ) ( -512 -1584 320 ) ( -512 -1584 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+{
+"classname" "light"
+"origin" "0 -768 -480"
+"light" "3000"
+}
+{
+"classname" "info_player_deathmatch"
+"origin" "0 -712 -640"
+"angle" "270"
+}
+{
+"light" "3000"
+"origin" "0 -832 160"
+"classname" "light"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+This example map demonstrates what a relatively large value for plane distance
+epsilon can do as far as destroying draw surfaces. The plane distance
+epsilon was 0.01 at the time of this writing. This means that two planes
+with the same normal and a distance 0.00999 apart are considered to be the
+same plane.
+
+The recommended value of plane distance epsilon is more along the lines of
+0.001; however, we can't currently change this epsilon to that value due to
+lack of resolution in 32 bit floating point integers in the 2^16 number range.
+The smallest epsilon in 32 bit float land that can be added to 2^16 that
+results in a value greater than 2^16 is approximately 0.007, which is already
+practically the current default plane distance epsilon (0.01).
+
+Brush 0 in the example map is a 6-sided brush with red top face. The red top
+face is defined such in the .map file:
+
+ ( -127 256 513 ) ( -127 384 513 ) ( 1 384 512 )
+
+During the -bsp stage,
+
+ In ParseRawBrush() for brush 0
+ Side 4:
+ (-127.000000 256.000000 513.000000)
+ (-127.000000 384.000000 513.000000)
+ (1.000000 384.000000 512.000000)
+ normal: (0.0078122616 0.0000000000 0.9999694824)
+ dist: 511.9921875000
+
+Now brush 1, the 4-sided brush with the red top face, has the following
+defined as the red top face:
+
+ ( -128 0 513 ) ( -128 128 513 ) ( 0 128 512 )
+
+It's almost the same plane, only off by a distance of about 0.01.
+
+During compiling:
+
+ In ParseRawBrush() for brush 1
+ Side 1:
+ (-128.000000 0.000000 513.000000)
+ (-128.000000 128.000000 513.000000)
+ (0.000000 128.000000 512.000000)
+ normal: (0.0078122616 0.0000000000 0.9999694824)
+ dist: 511.9921875000
+
+Note that the normal and dist are identical to the plane above, even though
+the two are different. This leads to multiplying errors later on, when this
+side is intersected with the bottom green face. In particular, the blue face
+disappears from the map. The blue face:
+
+ In CreateBrushWindings() for brush 1
+ Handling side 2 on the brush
+ Before clipping we have:
+ (-262144.00000000 0.00000000 262144.00000000)
+ (262144.00000000 0.00000000 262144.00000000)
+ (262144.00000000 -0.00000000 -262144.00000000)
+ (-262144.00000000 0.00000000 -262144.00000000)
+ After clipping w/ side 0 we have:
+ (-262144.00000000 0.00000000 262144.00000000)
+ (262144.00000000 0.00000000 262144.00000000)
+ (262144.00000000 0.00000000 -19977.00073172)
+ (-262144.00000000 0.00000000 20983.00073758)
+ After clipping w/ side 1 we have:
+ (262144.00000000 0.00000000 -1535.99218726)
+ (262144.00000000 0.00000000 -19977.00073172)
+ (-128.11106773 0.00000000 513.00868046)
+ After clipping w/ side 3 we have:
+ (0.00000000 0.00000000 503.00000293)
+ (-128.11106773 0.00000000 513.00868046)
+ (-0.00000000 0.00000000 512.00781274)
+
+We see the error is greater than 0.1 in the X value -128.11106773. This
+causes the draw surface to be discarded in processing later on. We must
+not allow such a great error. An error greater than or equal to 0.1 is
+considered to be very bad.
+
+This disappearing blue triangle can be fixed simply by deleting brush 0,
+the 6-sided brush that causes the bad plane alias. I would suggest deleting
+this brush by editing the .map file manually (and then renumbering the brushes
+manually).
+
+After deleting this brush:
+
+ In ParseRawBrush() for brush 0
+ Side 1:
+ (-128.000000 0.000000 513.000000)
+ (-128.000000 128.000000 513.000000)
+ (0.000000 128.000000 512.000000)
+ normal: (0.0078122616 0.0000000000 0.9999694824)
+ dist: 511.9843750000
+
+ In CreateBrushWindings() for brush 0
+ Handling side 1 on the brush
+ Before clipping we have:
+ (262132.00000000 262136.00000000 -1535.90625143)
+ (262132.00000000 -262136.00000000 -1535.90625143)
+ (-262124.00048828 -262136.00000000 2559.84375238)
+ (-262124.00048828 262136.00000000 2559.84375238)
+ After clipping w/ side 0 we have:
+ (262132.00000000 262136.00000000 -1535.90625143)
+ (262132.00000000 -262136.00000000 -1535.90625143)
+ (-127.99993289 -262136.00000000 512.99999805)
+ (-127.99993289 262136.00000000 512.99999805)
+ After clipping w/ side 2 we have:
+ (262132.00000000 262136.00000000 -1535.90625143)
+ (262132.00000000 -0.00000000 -1535.90625143)
+ (-127.99993289 -0.00000000 512.99999805)
+ (-127.99993289 262136.00000000 512.99999805)
+ After clipping w/ side 3 we have:
+ (0.00000000 0.00000000 511.99999857)
+ (-127.99993289 -0.00000000 512.99999805)
+ (-127.99993289 127.99993289 512.99999805)
+
+Note that we're way more accurate now, and we're nowhere near to approaching
+the 0.1 error. All it took was the deletion of a seemintly unrelated brush.
+
+
+SOLUTION TO PROBLEM:
+====================
+
+The suggested fix is to increase the resolution of plane distance from 32 bit
+float to 64 bit float for the relevant brush processing operations. After that
+is done, decrease the default plane distance epsilon from 0.01 to 0.001. Note
+that even though plane distance epsilon can be specified on the command-line,
+it will do no good (even if set to 0) if the plane distance is close to
+2^16.
--- /dev/null
+{
+"classname" "worldspawn"
+{
+( -127 384 513 ) ( -127 256 513 ) ( -127 256 384 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 1 384 512 ) ( -127 384 512 ) ( -127 384 384 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 1 256 512 ) ( 1 384 512 ) ( 1 384 384 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -127 256 512 ) ( 1 256 512 ) ( 1 256 384 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -127 256 513 ) ( -127 384 513 ) ( 1 384 512 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( 1 384 384 ) ( -127 384 384 ) ( -127 256 384 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( 0 128 503 ) ( -128 128 513 ) ( 0 0 503 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( -128 0 513 ) ( -128 128 513 ) ( 0 128 512 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+( -128 0 512 ) ( 0 0 512 ) ( 0 0 384 ) radiant_regression_tests/blue 0 0 0 0.500000 0.500000 0 0 0
+( -128 128 503 ) ( 0 0 503 ) ( -128 128 513 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
+( -128 472 8 ) ( -128 320 8 ) ( -128 320 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -232 512 8 ) ( -416 512 8 ) ( -416 512 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -304 8 ) ( 512 -152 8 ) ( 512 -152 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 48 -512 8 ) ( 232 -512 8 ) ( 232 -512 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -432 232 0 ) ( -432 384 0 ) ( -248 384 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -256 384 -8 ) ( -440 384 -8 ) ( -440 232 -8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -136 512 1040 ) ( -136 -512 1040 ) ( -136 -512 8 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 512 1032 ) ( -520 512 1032 ) ( -520 512 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -128 -512 1032 ) ( -128 512 1032 ) ( -128 512 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -520 -512 1032 ) ( -512 -512 1032 ) ( -512 -512 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -520 -512 1024 ) ( -520 512 1024 ) ( -512 512 1024 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 512 0 ) ( -520 512 0 ) ( -520 -512 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 512 512 1024 ) ( 512 -512 1024 ) ( 512 -512 0 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 592 512 1024 ) ( 512 512 1024 ) ( 512 512 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 520 -512 1000 ) ( 520 512 1000 ) ( 520 512 -24 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -512 1024 ) ( 592 -512 1024 ) ( 592 -512 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -512 1024 ) ( 512 512 1024 ) ( 592 512 1024 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 592 512 0 ) ( 512 512 0 ) ( 512 -512 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -128 512 1200 ) ( -128 -512 1200 ) ( -128 -512 1024 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 512 1200 ) ( -512 512 1200 ) ( -512 512 1024 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -512 1200 ) ( 512 512 1200 ) ( 512 512 1024 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -512 1200 ) ( 512 -512 1200 ) ( 512 -512 1024 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -456 -512 1032 ) ( -456 512 1032 ) ( 568 512 1032 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 512 1024 ) ( -512 512 1024 ) ( -512 -512 1024 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
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+( 512 520 1040 ) ( -512 520 1040 ) ( -512 520 16 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
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+( 512 712 0 ) ( -512 712 0 ) ( -512 512 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( -128 -512 1024 ) ( -128 -624 1024 ) ( -128 -624 56 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -512 1024 ) ( -512 -512 1024 ) ( -512 -512 56 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 512 -624 1024 ) ( 512 -512 1024 ) ( 512 -512 56 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -520 1048 ) ( 512 -520 1048 ) ( 512 -520 80 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( -512 -624 1024 ) ( -512 -512 1024 ) ( 512 -512 1024 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 512 -504 0 ) ( -512 -504 0 ) ( -512 -616 0 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+{
+"classname" "light"
+"origin" "192 64 640"
+"light" "3000"
+}
+{
+"classname" "info_player_deathmatch"
+"origin" "-64 64 640"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The example map, maps/segmentation_fault.map, contains an example of this
+bug. q3map2 might segfault while compiling this map. This sort of thing
+might happen in certain intermediate versions of q3map2 while work is being
+done on fixing the math accuracy. The bug may not have happened in older
+version of q3map2, before the math accuracy issues were addressed.
+
+To trigger the bug, compile the map; you don't need -vis or -light. Only
+-bsp (the first q3map2 stage) is necessary to trigger the bug. The only
+entities in the map are a light and a info_player_deathmatch, so the map will
+compile for any Q3 mod.
+
+Here is a description of the problem brush (brush #0):
+
+ side 0: -z face
+ side 1: +z face
+ side 2: -y face
+ side 3: +x face
+ side 4: +y face
+ side 5: -x face
+ side 6: problem side "accidentally showed up" :-)
+
+Side 6 is actually a superfluous plane and will be NULL'ed out in the code.
+If the code does not handle a NULL'ed out winding correctly, it will
+segfault.
--- /dev/null
+{
+"classname" "worldspawn"
+{
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+( 10240 17727 -576 ) ( 10240 17726 -621 ) ( 10335 17727 -576 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 134217728 257 0
+}
+{
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+}
+{
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+( 10112 17408 -544 ) ( 10112 17392 -544 ) ( 10112 17392 -768 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
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+( 10496 17784 -320 ) ( 10496 17408 -320 ) ( 10496 17408 -768 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
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+}
+{
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+( 10112 17792 -232 ) ( 10112 17408 -232 ) ( 10112 17408 -320 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
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+( 10112 17408 -768 ) ( 10112 17792 -768 ) ( 10496 17792 -768 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 10112 17408 -768 ) ( 10496 17408 -768 ) ( 10496 17408 -856 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 10496 17408 -768 ) ( 10496 17792 -768 ) ( 10496 17792 -856 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 10496 17792 -768 ) ( 10112 17792 -768 ) ( 10112 17792 -856 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 10112 17792 -768 ) ( 10112 17408 -768 ) ( 10112 17408 -856 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+{
+"origin" "10312 17600 -480"
+"classname" "info_player_deathmatch"
+}
+{
+"light" "1000"
+"origin" "10240 17608 -464"
+"classname" "light"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The example map, maps/snap_plane.map, contains an example of some bugs.
+The green brush with the red face is transformed into something totally
+unexpected.
+
+To trigger the bug, compile the map; you don't need -vis or -light. Only
+-bsp (the first q3map2 stage) is necessary to trigger the bug. The only
+entities in the map are a light and a info_player_deathmatch, so the map will
+compile for any Q3 mod.
+
+
+SOLUTION TO PROBLEM:
+====================
+
+I actually came up with this regression test after reading the code to
+SnapPlane() and SnapNormal(). I decided to make this map as a test of
+whether or not I understand how the code is broken. Sure enough, the map
+is broken in the same way that I would expect it to be broken.
+
+The problem is that the red face of the green brush in the center of the room
+is very close to being axially aligned, but not quite. This plane will
+therefore be "snapped" to become axial. This is not the problem. The
+problem is that after the snap, the plane will be shifted a great deal,
+and the corner of the green brush will no longer come even close to meeting
+the corner of the other cube brush next to it (the two corners of the two
+brushes will drift apart a great deal).
+
+If you study the legacy SnapPlane() code, you will see that planes are
+defined as a unit normal and distance from origin. Well, because
+of the position of this brush on the side of the world extents (far from
+the original), the snap will cause drastic effects on the points that the
+plane was supposed to approximate.
+
+Another problem with SnapPlane() is that SnapNormal() snaps too liberally.
+Once SnapNormal() is changed to only snap normals that are REALLY close
+to axial (and not anything within 0.25 degrees), this bug will no longer
+appear, but the SnapPlane() problem will still be present. So, this
+regression test should be fixed BEFORE SnapNormal() is fixed, otherwise
+create another regression test with a red face that is much much closer to
+being axially aligned. We want to make sure that SnapPlane() is fixed when
+things actually do get snapped.
+
+The code to address these issues is currently being worked on.
--- /dev/null
+{
+"classname" "worldspawn"
+{
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+( -54976 5632 0 ) ( -54784 5632 0 ) ( -54784 5632 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( -54784 5632 0 ) ( -54784 5760 0 ) ( -54784 5760 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
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+( -54976 5760 0 ) ( -54976 5632 0 ) ( -54976 5632 -64 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+}
+{
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+( -55072 4944 0 ) ( -55072 5616 0 ) ( -53816 5616 0 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
+( -55040 4096 8 ) ( -53784 4096 8 ) ( -53784 4096 0 ) radiant_regression_tests/green 0 0 0 0.500000 0.500000 0 0 0
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+( -54528 5632 -64 ) ( -54272 5631 -64 ) ( -54528 5632 0 ) radiant_regression_tests/red 0 0 0 0.500000 0.500000 0 0 0
+}
+{
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+}
+{
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+}
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+}
+{
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+}
+{
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+}
+{
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+}
+}
+{
+"light" "1000"
+"origin" "-54664 5696 40"
+"classname" "light"
+}
+{
+"angle" "360"
+"origin" "-54840 5696 88"
+"classname" "info_player_deathmatch"
+}
--- /dev/null
+DESCRIPTION OF PROBLEM:
+=======================
+
+The example map, maps/sparkly_seam.map, contains two triangular brushes near
+the side of the room. The seam between these two brushes "sparkles" even
+though the endpoints of the edges are exactly the same.
+
+To trigger the bug, compile the map; you don't need -vis or -light. Only
+-bsp (the first q3map2 stage) is necessary to trigger the bug. The only
+entities in the map are a light and a info_player_deathmatch, so the map will
+compile for any Q3 mod.
+
+
+SOLUTION TO PROBLEM:
+====================
+
+None yet. The problem is likely caused by sloppy math operations (significant
+loss of precision). This bug pops in and out of existence with every other
+commit at the moment. The problem is likely caused by the operations in the
+brush winding computation (where the planes are intersected with each other).
+I have not gotten around to addressing that code yet.
--- /dev/null
+{
+"classname" "worldspawn"
+{
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+}
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+}
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+}
+{
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+}
+{
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+}
+{
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+}
+{
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+( 6144 16552 -888 ) ( 6144 16912 -888 ) ( 6784 16912 -888 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15936 -744 ) ( 6784 15936 -744 ) ( 6784 15936 -856 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16536 -784 ) ( 6784 16896 -784 ) ( 6784 16896 -896 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16896 -784 ) ( 6144 16896 -784 ) ( 6144 16896 -896 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16896 -784 ) ( 6144 16536 -784 ) ( 6144 16536 -896 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+{
+( 6784 16584 -2056 ) ( 6144 16584 -2056 ) ( 6144 15976 -2056 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 15936 -2048 ) ( 6144 16544 -2048 ) ( 6784 16544 -2048 ) radiant_regression_tests/tile 0 0 0 0.500000 0.500000 0 0 0
+( 6144 15936 -2048 ) ( 6784 15936 -2048 ) ( 6784 15936 -2376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 15936 -2048 ) ( 6784 16544 -2048 ) ( 6784 16544 -2376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6784 16896 -2048 ) ( 6144 16896 -2048 ) ( 6144 16896 -2376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+( 6144 16544 -2048 ) ( 6144 15936 -2048 ) ( 6144 15936 -2376 ) common/caulk 0 0 0 0.500000 0.500000 0 4 0
+}
+}
+{
+"angle" "180"
+"origin" "6608 15968 -1608"
+"classname" "info_player_deathmatch"
+}
+{
+"light" "1000"
+"origin" "6440 16160 -1192"
+"classname" "light"
+}
return w;
}
+/*
+=============
+AllocWindingAccu
+=============
+*/
+winding_accu_t *AllocWindingAccu(int points)
+{
+ winding_accu_t *w;
+ int s;
+
+ if (points >= MAX_POINTS_ON_WINDING)
+ Error("AllocWindingAccu failed: MAX_POINTS_ON_WINDING exceeded");
+
+ if (numthreads == 1)
+ {
+ // At the time of this writing, these statistics were not used in any way.
+ c_winding_allocs++;
+ c_winding_points += points;
+ c_active_windings++;
+ if (c_active_windings > c_peak_windings)
+ c_peak_windings = c_active_windings;
+ }
+ s = sizeof(vec_accu_t) * 3 * points + sizeof(int);
+ w = safe_malloc(s);
+ memset(w, 0, s);
+ return w;
+}
+
+/*
+=============
+FreeWinding
+=============
+*/
void FreeWinding (winding_t *w)
{
+ if (!w) Error("FreeWinding: winding is NULL");
+
if (*(unsigned *)w == 0xdeaddead)
Error ("FreeWinding: freed a freed winding");
*(unsigned *)w = 0xdeaddead;
free (w);
}
+/*
+=============
+FreeWindingAccu
+=============
+*/
+void FreeWindingAccu(winding_accu_t *w)
+{
+ if (!w) Error("FreeWindingAccu: winding is NULL");
+
+ if (*((unsigned *) w) == 0xdeaddead)
+ Error("FreeWindingAccu: freed a freed winding");
+ *((unsigned *) w) = 0xdeaddead;
+
+ if (numthreads == 1)
+ c_active_windings--;
+ free(w);
+}
+
/*
============
RemoveColinearPoints
VectorScale (center, scale, center);
}
+/*
+=================
+BaseWindingForPlaneAccu
+=================
+*/
+winding_accu_t *BaseWindingForPlaneAccu(vec3_t normal, vec_t dist)
+{
+ // The goal in this function is to replicate the behavior of the original BaseWindingForPlane()
+ // function (see below) but at the same time increasing accuracy substantially.
+
+ // The original code gave a preference for the vup vector to start out as (0, 0, 1), unless the
+ // normal had a dominant Z value, in which case vup started out as (1, 0, 0). After that, vup
+ // was "bent" [along the plane defined by normal and vup] to become perpendicular to normal.
+ // After that the vright vector was computed as the cross product of vup and normal.
+
+ // I'm constructing the winding polygon points in a fashion similar to the method used in the
+ // original function. Orientation is the same. The size of the winding polygon, however, is
+ // variable in this function (depending on the angle of normal), and is larger (by about a factor
+ // of 2) than the winding polygon in the original function.
+
+ int x, i;
+ vec_t max, v;
+ vec3_accu_t vright, vup, org, normalAccu;
+ winding_accu_t *w;
+
+ // One of the components of normal must have a magnitiude greater than this value,
+ // otherwise normal is not a unit vector. This is a little bit of inexpensive
+ // partial error checking we can do.
+ max = 0.56; // 1 / sqrt(1^2 + 1^2 + 1^2) = 0.577350269
+
+ x = -1;
+ for (i = 0; i < 3; i++) {
+ v = (vec_t) fabs(normal[i]);
+ if (v > max) {
+ x = i;
+ max = v;
+ }
+ }
+ if (x == -1) Error("BaseWindingForPlaneAccu: no dominant axis found because normal is too short");
+
+ switch (x) {
+ case 0: // Fall through to next case.
+ case 1:
+ vright[0] = (vec_accu_t) -normal[1];
+ vright[1] = (vec_accu_t) normal[0];
+ vright[2] = 0;
+ break;
+ case 2:
+ vright[0] = 0;
+ vright[1] = (vec_accu_t) -normal[2];
+ vright[2] = (vec_accu_t) normal[1];
+ break;
+ }
+
+ // vright and normal are now perpendicular; you can prove this by taking their
+ // dot product and seeing that it's always exactly 0 (with no error).
+
+ // NOTE: vright is NOT a unit vector at this point. vright will have length
+ // not exceeding 1.0. The minimum length that vright can achieve happens when,
+ // for example, the Z and X components of the normal input vector are equal,
+ // and when normal's Y component is zero. In that case Z and X of the normal
+ // vector are both approximately 0.70711. The resulting vright vector in this
+ // case will have a length of 0.70711.
+
+ // We're relying on the fact that MAX_WORLD_COORD is a power of 2 to keep
+ // our calculation precise and relatively free of floating point error.
+ // [However, the code will still work fine if that's not the case.]
+ VectorScaleAccu(vright, ((vec_accu_t) MAX_WORLD_COORD) * 4.0, vright);
+
+ // At time time of this writing, MAX_WORLD_COORD was 65536 (2^16). Therefore
+ // the length of vright at this point is at least 185364. In comparison, a
+ // corner of the world at location (65536, 65536, 65536) is distance 113512
+ // away from the origin.
+
+ VectorCopyRegularToAccu(normal, normalAccu);
+ CrossProductAccu(normalAccu, vright, vup);
+
+ // vup now has length equal to that of vright.
+
+ VectorScaleAccu(normalAccu, (vec_accu_t) dist, org);
+
+ // org is now a point on the plane defined by normal and dist. Furthermore,
+ // org, vright, and vup are pairwise perpendicular. Now, the 4 vectors
+ // { (+-)vright + (+-)vup } have length that is at least sqrt(185364^2 + 185364^2),
+ // which is about 262144. That length lies outside the world, since the furthest
+ // point in the world has distance 113512 from the origin as mentioned above.
+ // Also, these 4 vectors are perpendicular to the org vector. So adding them
+ // to org will only increase their length. Therefore the 4 points defined below
+ // all lie outside of the world. Furthermore, it can be easily seen that the
+ // edges connecting these 4 points (in the winding_accu_t below) lie completely
+ // outside the world. sqrt(262144^2 + 262144^2)/2 = 185363, which is greater than
+ // 113512.
+
+ w = AllocWindingAccu(4);
+
+ VectorSubtractAccu(org, vright, w->p[0]);
+ VectorAddAccu(w->p[0], vup, w->p[0]);
+
+ VectorAddAccu(org, vright, w->p[1]);
+ VectorAddAccu(w->p[1], vup, w->p[1]);
+
+ VectorAddAccu(org, vright, w->p[2]);
+ VectorSubtractAccu(w->p[2], vup, w->p[2]);
+
+ VectorSubtractAccu(org, vright, w->p[3]);
+ VectorSubtractAccu(w->p[3], vup, w->p[3]);
+
+ w->numpoints = 4;
+
+ return w;
+}
+
/*
=================
BaseWindingForPlane
+
+Original BaseWindingForPlane() function that has serious accuracy problems. Here is why.
+The base winding is computed as a rectangle with very large coordinates. These coordinates
+are in the range 2^17 or 2^18. "Epsilon" (meaning the distance between two adjacent numbers)
+at these magnitudes in 32 bit floating point world is about 0.02. So for example, if things
+go badly (by bad luck), then the whole plane could be shifted by 0.02 units (its distance could
+be off by that much). Then if we were to compute the winding of this plane and another of
+the brush's planes met this winding at a very acute angle, that error could multiply to around
+0.1 or more when computing the final vertex coordinates of the winding. 0.1 is a very large
+error, and can lead to all sorts of disappearing triangle problems.
=================
*/
winding_t *BaseWindingForPlane (vec3_t normal, vec_t dist)
size_t size;
winding_t *c;
+ if (!w) Error("CopyWinding: winding is NULL");
+
c = AllocWinding (w->numpoints);
size = (size_t)((winding_t *)NULL)->p[w->numpoints];
memcpy (c, w, size);
return c;
}
+/*
+==================
+CopyWindingAccuIncreaseSizeAndFreeOld
+==================
+*/
+winding_accu_t *CopyWindingAccuIncreaseSizeAndFreeOld(winding_accu_t *w)
+{
+ int i;
+ winding_accu_t *c;
+
+ if (!w) Error("CopyWindingAccuIncreaseSizeAndFreeOld: winding is NULL");
+
+ c = AllocWindingAccu(w->numpoints + 1);
+ c->numpoints = w->numpoints;
+ for (i = 0; i < c->numpoints; i++)
+ {
+ VectorCopyAccu(w->p[i], c->p[i]);
+ }
+ FreeWindingAccu(w);
+ return c;
+}
+
+/*
+==================
+CopyWindingAccuToRegular
+==================
+*/
+winding_t *CopyWindingAccuToRegular(winding_accu_t *w)
+{
+ int i;
+ winding_t *c;
+
+ if (!w) Error("CopyWindingAccuToRegular: winding is NULL");
+
+ c = AllocWinding(w->numpoints);
+ c->numpoints = w->numpoints;
+ for (i = 0; i < c->numpoints; i++)
+ {
+ VectorCopyAccuToRegular(w->p[i], c->p[i]);
+ }
+ return c;
+}
+
/*
==================
ReverseWinding
}
+/*
+=============
+ChopWindingInPlaceAccu
+=============
+*/
+void ChopWindingInPlaceAccu(winding_accu_t **inout, vec3_t normal, vec_t dist, vec_t crudeEpsilon)
+{
+ vec_accu_t fineEpsilon;
+ winding_accu_t *in;
+ int counts[3];
+ int i, j;
+ vec_accu_t dists[MAX_POINTS_ON_WINDING + 1];
+ int sides[MAX_POINTS_ON_WINDING + 1];
+ int maxpts;
+ winding_accu_t *f;
+ vec_accu_t *p1, *p2;
+ vec_accu_t w;
+ vec3_accu_t mid, normalAccu;
+
+ // We require at least a very small epsilon. It's a good idea for several reasons.
+ // First, we will be dividing by a potentially very small distance below. We don't
+ // want that distance to be too small; otherwise, things "blow up" with little accuracy
+ // due to the division. (After a second look, the value w below is in range (0,1), but
+ // graininess problem remains.) Second, Having minimum epsilon also prevents the following
+ // situation. Say for example we have a perfect octagon defined by the input winding.
+ // Say our chopping plane (defined by normal and dist) is essentially the same plane
+ // that the octagon is sitting on. Well, due to rounding errors, it may be that point
+ // 1 of the octagon might be in front, point 2 might be in back, point 3 might be in
+ // front, point 4 might be in back, and so on. So we could end up with a very ugly-
+ // looking chopped winding, and this might be undesirable, and would at least lead to
+ // a possible exhaustion of MAX_POINTS_ON_WINDING. It's better to assume that points
+ // very very close to the plane are on the plane, using an infinitesimal epsilon amount.
+
+ // Now, the original ChopWindingInPlace() function used a vec_t-based winding_t.
+ // So this minimum epsilon is quite similar to casting the higher resolution numbers to
+ // the lower resolution and comparing them in the lower resolution mode. We explicitly
+ // choose the minimum epsilon as something around the vec_t epsilon of one because we
+ // want the resolution of vec_accu_t to have a large resolution around the epsilon.
+ // Some of that leftover resolution even goes away after we scale to points far away.
+
+ // Here is a further discussion regarding the choice of smallestEpsilonAllowed.
+ // In the 32 float world (we can assume vec_t is that), the "epsilon around 1.0" is
+ // 0.00000011921. In the 64 bit float world (we can assume vec_accu_t is that), the
+ // "epsilon around 1.0" is 0.00000000000000022204. (By the way these two epsilons
+ // are defined as VEC_SMALLEST_EPSILON_AROUND_ONE VEC_ACCU_SMALLEST_EPSILON_AROUND_ONE
+ // respectively.) If you divide the first by the second, you get approximately
+ // 536,885,246. Dividing that number by 200,000 (a typical base winding coordinate)
+ // gives 2684. So in other words, if our smallestEpsilonAllowed was chosen as exactly
+ // VEC_SMALLEST_EPSILON_AROUND_ONE, you would be guaranteed at least 2000 "ticks" in
+ // 64-bit land inside of the epsilon for all numbers we're dealing with.
+
+ static const vec_accu_t smallestEpsilonAllowed = ((vec_accu_t) VEC_SMALLEST_EPSILON_AROUND_ONE) * 0.5;
+ if (crudeEpsilon < smallestEpsilonAllowed) fineEpsilon = smallestEpsilonAllowed;
+ else fineEpsilon = (vec_accu_t) crudeEpsilon;
+
+ in = *inout;
+ counts[0] = counts[1] = counts[2] = 0;
+ VectorCopyRegularToAccu(normal, normalAccu);
+
+ for (i = 0; i < in->numpoints; i++)
+ {
+ dists[i] = DotProductAccu(in->p[i], normalAccu) - dist;
+ if (dists[i] > fineEpsilon) sides[i] = SIDE_FRONT;
+ else if (dists[i] < -fineEpsilon) sides[i] = SIDE_BACK;
+ else sides[i] = SIDE_ON;
+ counts[sides[i]]++;
+ }
+ sides[i] = sides[0];
+ dists[i] = dists[0];
+
+ // I'm wondering if whatever code that handles duplicate planes is robust enough
+ // that we never get a case where two nearly equal planes result in 2 NULL windings
+ // due to the 'if' statement below. TODO: Investigate this.
+ if (!counts[SIDE_FRONT]) {
+ FreeWindingAccu(in);
+ *inout = NULL;
+ return;
+ }
+ if (!counts[SIDE_BACK]) {
+ return; // Winding is unmodified.
+ }
+
+ // NOTE: The least number of points that a winding can have at this point is 2.
+ // In that case, one point is SIDE_FRONT and the other is SIDE_BACK.
+
+ maxpts = counts[SIDE_FRONT] + 2; // We dynamically expand if this is too small.
+ f = AllocWindingAccu(maxpts);
+
+ for (i = 0; i < in->numpoints; i++)
+ {
+ p1 = in->p[i];
+
+ if (sides[i] == SIDE_ON || sides[i] == SIDE_FRONT)
+ {
+ if (f->numpoints >= MAX_POINTS_ON_WINDING)
+ Error("ChopWindingInPlaceAccu: MAX_POINTS_ON_WINDING");
+ if (f->numpoints >= maxpts) // This will probably never happen.
+ {
+ Sys_FPrintf(SYS_VRB, "WARNING: estimate on chopped winding size incorrect (no problem)\n");
+ f = CopyWindingAccuIncreaseSizeAndFreeOld(f);
+ maxpts++;
+ }
+ VectorCopyAccu(p1, f->p[f->numpoints]);
+ f->numpoints++;
+ if (sides[i] == SIDE_ON) continue;
+ }
+ if (sides[i + 1] == SIDE_ON || sides[i + 1] == sides[i])
+ {
+ continue;
+ }
+
+ // Generate a split point.
+ p2 = in->p[((i + 1) == in->numpoints) ? 0 : (i + 1)];
+
+ // The divisor's absolute value is greater than the dividend's absolute value.
+ // w is in the range (0,1).
+ w = dists[i] / (dists[i] - dists[i + 1]);
+
+ for (j = 0; j < 3; j++)
+ {
+ // Avoid round-off error when possible. Check axis-aligned normal.
+ if (normal[j] == 1) mid[j] = dist;
+ else if (normal[j] == -1) mid[j] = -dist;
+ else mid[j] = p1[j] + (w * (p2[j] - p1[j]));
+ }
+ if (f->numpoints >= MAX_POINTS_ON_WINDING)
+ Error("ChopWindingInPlaceAccu: MAX_POINTS_ON_WINDING");
+ if (f->numpoints >= maxpts) // This will probably never happen.
+ {
+ Sys_FPrintf(SYS_VRB, "WARNING: estimate on chopped winding size incorrect (no problem)\n");
+ f = CopyWindingAccuIncreaseSizeAndFreeOld(f);
+ maxpts++;
+ }
+ VectorCopyAccu(mid, f->p[f->numpoints]);
+ f->numpoints++;
+ }
+
+ FreeWindingAccu(in);
+ *inout = f;
+}
+
/*
=============
ChopWindingInPlace
// frees the original if clipped
void pw(winding_t *w);
+
+
+///////////////////////////////////////////////////////////////////////////////////////
+// Below is double-precision stuff. This was initially needed by the base winding code
+// in q3map2 brush processing.
+///////////////////////////////////////////////////////////////////////////////////////
+
+typedef struct
+{
+ int numpoints;
+ vec3_accu_t p[4]; // variable sized
+} winding_accu_t;
+
+winding_accu_t *BaseWindingForPlaneAccu(vec3_t normal, vec_t dist);
+void ChopWindingInPlaceAccu(winding_accu_t **w, vec3_t normal, vec_t dist, vec_t epsilon);
+winding_t *CopyWindingAccuToRegular(winding_accu_t *w);
+void FreeWindingAccu(winding_accu_t *w);
}
}
+/*
+==================
+SnapWeldVectorAccu
+
+Welds two vectors into a third, taking into account nearest-to-integer
+instead of averaging.
+==================
+*/
+void SnapWeldVectorAccu(vec3_accu_t a, vec3_accu_t b, vec3_accu_t out)
+{
+ // I'm just preserving what I think was the intended logic of the original
+ // SnapWeldVector(). I'm not actually sure where this function should even
+ // be used. I'd like to know which kinds of problems this function addresses.
+
+ // TODO: I thought we're snapping all coordinates to nearest 1/8 unit?
+ // So what is natural about snapping to the nearest integer? Maybe we should
+ // be snapping to the nearest 1/8 unit instead?
+ int i;
+ vec_accu_t ai, bi, ad, bd;
+
+ if (a == NULL || b == NULL || out == NULL)
+ Error("SnapWeldVectorAccu: NULL argument");
+
+ for (i = 0; i < 3; i++)
+ {
+ ai = Q_rintAccu(a[i]);
+ bi = Q_rintAccu(b[i]);
+ ad = fabs(ai - a[i]);
+ bd = fabs(bi - b[i]);
+
+ if (ad < bd)
+ {
+ if (ad < SNAP_EPSILON) out[i] = ai;
+ else out[i] = a[i];
+ }
+ else
+ {
+ if (bd < SNAP_EPSILON) out[i] = bi;
+ else out[i] = b[i];
+ }
+ }
+}
/*
FixWinding() - ydnar
return valid;
}
+/*
+==================
+FixWindingAccu
+Removes degenerate edges (edges that are too short) from a winding.
+Returns qtrue if the winding has been altered by this function.
+Returns qfalse if the winding is untouched by this function.
+It's advised that you check the winding after this function exits to make
+sure it still has at least 3 points. If that is not the case, the winding
+cannot be considered valid. The winding may degenerate to one or two points
+if the some of the winding's points are close together.
+==================
+*/
+qboolean FixWindingAccu(winding_accu_t *w)
+{
+ int i, j, k;
+ vec3_accu_t vec;
+ vec_accu_t dist;
+ qboolean done, altered;
+ if (w == NULL) Error("FixWindingAccu: NULL argument");
+ altered = qfalse;
+
+ while (qtrue)
+ {
+ if (w->numpoints < 2) break; // Don't remove the only remaining point.
+ done = qtrue;
+ for (i = 0; i < w->numpoints; i++)
+ {
+ j = (((i + 1) == w->numpoints) ? 0 : (i + 1));
+
+ VectorSubtractAccu(w->p[i], w->p[j], vec);
+ dist = VectorLengthAccu(vec);
+ if (dist < DEGENERATE_EPSILON)
+ {
+ // TODO: I think the "snap weld vector" was written before
+ // some of the math precision fixes, and its purpose was
+ // probably to address math accuracy issues. We can think
+ // about changing the logic here. Maybe once plane distance
+ // gets 64 bits, we can look at it then.
+ SnapWeldVectorAccu(w->p[i], w->p[j], vec);
+ VectorCopyAccu(vec, w->p[i]);
+ for (k = j + 1; k < w->numpoints; k++)
+ {
+ VectorCopyAccu(w->p[k], w->p[k - 1]);
+ }
+ w->numpoints--;
+ altered = qtrue;
+ // The only way to finish off fixing the winding consistently and
+ // accurately is by fixing the winding all over again. For example,
+ // the point at index i and the point at index i-1 could now be
+ // less than the epsilon distance apart. There are too many special
+ // case problems we'd need to handle if we didn't start from the
+ // beginning.
+ done = qfalse;
+ break; // This will cause us to return to the "while" loop.
+ }
+ }
+ if (done) break;
+ }
+
+ return altered;
+}
/*
qboolean CreateBrushWindings( brush_t *brush )
{
int i, j;
+#if Q3MAP2_EXPERIMENTAL_HIGH_PRECISION_MATH_FIXES
+ winding_accu_t *w;
+#else
winding_t *w;
+#endif
side_t *side;
plane_t *plane;
plane = &mapplanes[ side->planenum ];
/* make huge winding */
+#if Q3MAP2_EXPERIMENTAL_HIGH_PRECISION_MATH_FIXES
+ w = BaseWindingForPlaneAccu(plane->normal, plane->dist);
+#else
w = BaseWindingForPlane( plane->normal, plane->dist );
+#endif
/* walk the list of brush sides */
for( j = 0; j < brush->numsides && w != NULL; j++ )
if( brush->sides[ j ].bevel )
continue;
plane = &mapplanes[ brush->sides[ j ].planenum ^ 1 ];
+#if Q3MAP2_EXPERIMENTAL_HIGH_PRECISION_MATH_FIXES
+ ChopWindingInPlaceAccu(&w, plane->normal, plane->dist, 0);
+#else
ChopWindingInPlace( &w, plane->normal, plane->dist, 0 ); // CLIP_EPSILON );
+#endif
/* ydnar: fix broken windings that would generate trifans */
+#if Q3MAP2_EXPERIMENTAL_HIGH_PRECISION_MATH_FIXES
+ // I think it's better to FixWindingAccu() once after we chop with all planes
+ // so that error isn't multiplied. There is nothing natural about welding
+ // the points unless they are the final endpoints. ChopWindingInPlaceAccu()
+ // is able to handle all kinds of degenerate windings.
+#else
FixWinding( w );
+#endif
}
/* set side winding */
+#if Q3MAP2_EXPERIMENTAL_HIGH_PRECISION_MATH_FIXES
+ if (w != NULL)
+ {
+ FixWindingAccu(w);
+ if (w->numpoints < 3)
+ {
+ FreeWindingAccu(w);
+ w = NULL;
+ }
+ }
+ side->winding = (w ? CopyWindingAccuToRegular(w) : NULL);
+ if (w) FreeWindingAccu(w);
+#else
side->winding = w;
+#endif
}
/* find brush bounds */
fprintf (f, "{\n");
for (i=0,s=list->sides ; i<list->numsides ; i++,s++)
{
+ // TODO: See if we can use a smaller winding to prevent resolution loss.
+ // Is WriteBSPBrushMap() used only to decompile maps?
w = BaseWindingForPlane (mapplanes[s->planenum].normal, mapplanes[s->planenum].dist);
fprintf (f,"( %i %i %i ) ", (int)w->p[0][0], (int)w->p[0][1], (int)w->p[0][2]);
converts a bsp drawsurface to an ase chunk
*/
+int numLightmapsASE = 0;
static void ConvertSurface( FILE *f, bspModel_t *model, int modelNum, bspDrawSurface_t *ds, int surfaceNum, vec3_t origin )
{
int i, v, face, a, b, c;
fprintf( f, "\t*PROP_MOTIONBLUR\t0\r\n" );
fprintf( f, "\t*PROP_CASTSHADOW\t1\r\n" );
fprintf( f, "\t*PROP_RECVSHADOW\t1\r\n" );
- fprintf( f, "\t*MATERIAL_REF\t%d\r\n", ds->shaderNum );
+ if(lightmapsAsTexcoord)
+ {
+ if(ds->lightmapNum[0] >= 0 && ds->lightmapNum[0] + deluxemap < numLightmapsASE)
+ fprintf( f, "\t*MATERIAL_REF\t%d\r\n", ds->lightmapNum[0] + deluxemap );
+ else
+ Sys_Printf( "WARNING: lightmap %d out of range, not exporting\n", ds->lightmapNum[0] + deluxemap );
+ }
+ else
+ fprintf( f, "\t*MATERIAL_REF\t%d\r\n", ds->shaderNum );
fprintf( f, "}\r\n" );
}
fprintf( f, "\t}\r\n" );
}
+static void ConvertLightmap( FILE *f, const char *base, int lightmapNum )
+{
+ /* print shader info */
+ fprintf( f, "\t*MATERIAL\t%d\t{\r\n", lightmapNum );
+ fprintf( f, "\t\t*MATERIAL_NAME\t\"lm_%04d\"\r\n", lightmapNum );
+ fprintf( f, "\t\t*MATERIAL_CLASS\t\"Standard\"\r\n" );
+ fprintf( f, "\t\t*MATERIAL_DIFFUSE\t1\t1\t1\r\n");
+ fprintf( f, "\t\t*MATERIAL_SHADING Phong\r\n" );
+
+ /* print map info */
+ if(lightmapNum >= 0)
+ {
+ fprintf( f, "\t\t*MAP_DIFFUSE\t{\r\n" );
+ fprintf( f, "\t\t\t*MAP_NAME\t\"lm_%04d\"\r\n", lightmapNum );
+ fprintf( f, "\t\t\t*MAP_CLASS\t\"Bitmap\"\r\n");
+ fprintf( f, "\t\t\t*MAP_SUBNO\t1\r\n" );
+ fprintf( f, "\t\t\t*MAP_AMOUNT\t1.0\r\n" );
+ fprintf( f, "\t\t\t*MAP_TYPE\tScreen\r\n" );
+ fprintf( f, "\t\t\t*BITMAP\t\"%s\\lm_%04d.tga\"\r\n", base, lightmapNum );
+ fprintf( f, "\t\t\t*BITMAP_FILTER\tPyramidal\r\n" );
+ fprintf( f, "\t\t}\r\n" );
+ }
+
+ fprintf( f, "\t}\r\n" );
+}
entity_t *e;
vec3_t origin;
const char *key;
- char name[ 1024 ], base[ 1024 ];
+ char name[ 1024 ], base[ 1024 ], dirname[ 1024 ];
/* note it */
Sys_Printf( "--- Convert BSP to ASE ---\n" );
/* create the ase filename from the bsp name */
+ strcpy( dirname, bspName );
+ StripExtension( dirname );
strcpy( name, bspName );
StripExtension( name );
strcat( name, ".ase" );
Sys_Printf( "writing %s\n", name );
ExtractFileBase( bspName, base );
- strcat( base, ".bsp" );
/* open it */
f = fopen( name, "wb" );
fprintf( f, "*3DSMAX_ASCIIEXPORT\t200\r\n" );
fprintf( f, "*COMMENT\t\"Generated by Q3Map2 (ydnar) -convert -format ase\"\r\n" );
fprintf( f, "*SCENE\t{\r\n" );
- fprintf( f, "\t*SCENE_FILENAME\t\"%s\"\r\n", base );
+ fprintf( f, "\t*SCENE_FILENAME\t\"%s.bsp\"\r\n", base );
fprintf( f, "\t*SCENE_FIRSTFRAME\t0\r\n" );
fprintf( f, "\t*SCENE_LASTFRAME\t100\r\n" );
fprintf( f, "\t*SCENE_FRAMESPEED\t30\r\n" );
/* print materials */
fprintf( f, "*MATERIAL_LIST\t{\r\n" );
- fprintf( f, "\t*MATERIAL_COUNT\t%d\r\n", numBSPShaders );
- for( i = 0; i < numBSPShaders; i++ )
+ if(lightmapsAsTexcoord)
{
- shader = &bspShaders[ i ];
- ConvertShader( f, shader, i );
+ int lightmapCount;
+ for( lightmapCount = 0; lightmapCount < numBSPLightmaps; lightmapCount++ )
+ ;
+ for( ; ; lightmapCount++ )
+ {
+ char buf[1024];
+ FILE *tmp;
+ snprintf(buf, sizeof(buf), "%s/lm_%04d.tga", dirname, lightmapCount);
+ buf[sizeof(buf) - 1] = 0;
+ tmp = fopen(buf, "rb");
+ if(!tmp)
+ break;
+ fclose(tmp);
+ }
+ fprintf( f, "\t*MATERIAL_COUNT\t%d\r\n", lightmapCount );
+ for( i = 0; i < lightmapCount; i++ )
+ ConvertLightmap( f, base, i );
+ numLightmapsASE = lightmapCount;
+ }
+ else
+ {
+ fprintf( f, "\t*MATERIAL_COUNT\t%d\r\n", numBSPShaders );
+ for( i = 0; i < numBSPShaders; i++ )
+ {
+ shader = &bspShaders[ i ];
+ ConvertShader( f, shader, i );
+ }
}
fprintf( f, "}\r\n" );
--- /dev/null
+/* -------------------------------------------------------------------------------
+
+Copyright (C) 1999-2007 id Software, Inc. and contributors.
+For a list of contributors, see the accompanying CONTRIBUTORS file.
+
+This file is part of GtkRadiant.
+
+GtkRadiant is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+----------------------------------------------------------------------------------
+
+This code has been altered significantly from its original form, to support
+several games based on the Quake III Arena engine, in the form of "Q3Map2."
+
+------------------------------------------------------------------------------- */
+
+
+
+/* marker */
+#define CONVERT_ASE_C
+
+
+
+/* dependencies */
+#include "q3map2.h"
+
+
+
+/*
+ConvertSurface()
+converts a bsp drawsurface to an obj chunk
+*/
+
+int firstLightmap = 0;
+int lastLightmap = -1;
+static void ConvertLightmapToMTL( FILE *f, const char *base, int lightmapNum );
+
+int objVertexCount = 0;
+int objLastShaderNum = -1;
+static void ConvertSurfaceToOBJ( FILE *f, bspModel_t *model, int modelNum, bspDrawSurface_t *ds, int surfaceNum, vec3_t origin )
+{
+ int i, v, face, a, b, c;
+ bspDrawVert_t *dv;
+
+ /* ignore patches for now */
+ if( ds->surfaceType != MST_PLANAR && ds->surfaceType != MST_TRIANGLE_SOUP )
+ return;
+
+ fprintf(f, "g mat%dmodel%dsurf%d\r\n", ds->shaderNum, modelNum, surfaceNum);
+ switch( ds->surfaceType )
+ {
+ case MST_PLANAR:
+ fprintf( f, "# SURFACETYPE MST_PLANAR\r\n" );
+ break;
+ case MST_TRIANGLE_SOUP:
+ fprintf( f, "# SURFACETYPE MST_TRIANGLE_SOUP\r\n" );
+ break;
+ }
+
+ /* export shader */
+ if(lightmapsAsTexcoord)
+ {
+ if(objLastShaderNum != ds->lightmapNum[0])
+ {
+ fprintf(f, "usemtl lm_%04d\r\n", ds->lightmapNum[0] + deluxemap);
+ objLastShaderNum = ds->lightmapNum[0] + deluxemap;
+ }
+ if(ds->lightmapNum[0] + deluxemap < firstLightmap)
+ {
+ Sys_Printf( "WARNING: lightmap %d out of range (exporting anyway)\n", ds->lightmapNum[0] + deluxemap );
+ firstLightmap = ds->lightmapNum[0] + deluxemap;
+ }
+ if(ds->lightmapNum[0] > lastLightmap)
+ {
+ Sys_Printf( "WARNING: lightmap %d out of range (exporting anyway)\n", ds->lightmapNum[0] + deluxemap );
+ lastLightmap = ds->lightmapNum[0] + deluxemap;
+ }
+ }
+ else
+ {
+ if(objLastShaderNum != ds->shaderNum)
+ {
+ fprintf(f, "usemtl %s\r\n", bspShaders[ds->shaderNum].shader);
+ objLastShaderNum = ds->shaderNum;
+ }
+ }
+
+ /* export vertex */
+ for( i = 0; i < ds->numVerts; i++ )
+ {
+ v = i + ds->firstVert;
+ dv = &bspDrawVerts[ v ];
+ fprintf(f, "# vertex %d\r\n", i + objVertexCount + 1);
+ fprintf(f, "v %f %f %f\r\n", dv->xyz[ 0 ], dv->xyz[ 1 ], dv->xyz[ 2 ]);
+ fprintf(f, "vn %f %f %f\r\n", dv->normal[ 0 ], dv->normal[ 1 ], dv->normal[ 2 ]);
+ if(lightmapsAsTexcoord)
+ fprintf(f, "vt %f %f\r\n", dv->lightmap[0][0], 1.0 - dv->lightmap[0][1]);
+ else
+ fprintf(f, "vt %f %f\r\n", dv->st[ 0 ], 1.0 - dv->st[ 1 ]);
+ }
+
+ /* export faces */
+ for( i = 0; i < ds->numIndexes; i += 3 )
+ {
+ face = (i / 3);
+ a = bspDrawIndexes[ i + ds->firstIndex ];
+ c = bspDrawIndexes[ i + ds->firstIndex + 1 ];
+ b = bspDrawIndexes[ i + ds->firstIndex + 2 ];
+ fprintf(f, "f %d/%d/%d %d/%d/%d %d/%d/%d\r\n",
+ a + objVertexCount + 1, a + objVertexCount + 1, a + objVertexCount + 1,
+ b + objVertexCount + 1, b + objVertexCount + 1, b + objVertexCount + 1,
+ c + objVertexCount + 1, c + objVertexCount + 1, c + objVertexCount + 1
+ );
+ }
+
+ objVertexCount += ds->numVerts;
+}
+
+
+
+/*
+ConvertModel()
+exports a bsp model to an ase chunk
+*/
+
+static void ConvertModelToOBJ( FILE *f, bspModel_t *model, int modelNum, vec3_t origin )
+{
+ int i, s;
+ bspDrawSurface_t *ds;
+
+
+ /* go through each drawsurf in the model */
+ for( i = 0; i < model->numBSPSurfaces; i++ )
+ {
+ s = i + model->firstBSPSurface;
+ ds = &bspDrawSurfaces[ s ];
+ ConvertSurfaceToOBJ( f, model, modelNum, ds, s, origin );
+ }
+}
+
+
+
+/*
+ConvertShader()
+exports a bsp shader to an ase chunk
+*/
+
+static void ConvertShaderToMTL( FILE *f, bspShader_t *shader, int shaderNum )
+{
+ shaderInfo_t *si;
+ char *c, filename[ 1024 ];
+
+
+ /* get shader */
+ si = ShaderInfoForShader( shader->shader );
+ if( si == NULL )
+ {
+ Sys_Printf( "WARNING: NULL shader in BSP\n" );
+ return;
+ }
+
+ /* set bitmap filename */
+ if( si->shaderImage->filename[ 0 ] != '*' )
+ strcpy( filename, si->shaderImage->filename );
+ else
+ sprintf( filename, "%s.tga", si->shader );
+
+ /* blender hates this, so let's not do it
+ for( c = filename; *c != '\0'; c++ )
+ if( *c == '/' )
+ *c = '\\';
+ */
+
+ /* print shader info */
+ fprintf( f, "newmtl %s\r\n", shader->shader );
+ fprintf( f, "Kd %f %f %f\r\n", si->color[ 0 ], si->color[ 1 ], si->color[ 2 ] );
+ if(shadersAsBitmap)
+ fprintf( f, "map_Kd %s\r\n", shader->shader );
+ else
+ /* blender hates this, so let's not do it
+ fprintf( f, "map_Kd ..\\%s\r\n", filename );
+ */
+ fprintf( f, "map_Kd ../%s\r\n", filename );
+}
+
+static void ConvertLightmapToMTL( FILE *f, const char *base, int lightmapNum )
+{
+ /* print shader info */
+ fprintf( f, "newmtl lm_%04d\r\n", lightmapNum );
+ if(lightmapNum >= 0)
+ /* blender hates this, so let's not do it
+ fprintf( f, "map_Kd %s\\lm_%04d.tga\r\n", base, lightmapNum );
+ */
+ fprintf( f, "map_Kd %s/lm_%04d.tga\r\n", base, lightmapNum );
+}
+
+
+
+/*
+ConvertBSPToASE()
+exports an 3d studio ase file from the bsp
+*/
+
+int ConvertBSPToOBJ( char *bspName )
+{
+ int i, modelNum;
+ FILE *f, *fmtl;
+ bspShader_t *shader;
+ bspModel_t *model;
+ entity_t *e;
+ vec3_t origin;
+ const char *key;
+ char name[ 1024 ], base[ 1024 ], mtlname[ 1024 ], dirname[ 1024 ];
+
+
+ /* note it */
+ Sys_Printf( "--- Convert BSP to OBJ ---\n" );
+
+ /* create the ase filename from the bsp name */
+ strcpy( dirname, bspName );
+ StripExtension( dirname );
+ strcpy( name, bspName );
+ StripExtension( name );
+ strcat( name, ".obj" );
+ Sys_Printf( "writing %s\n", name );
+ strcpy( mtlname, bspName );
+ StripExtension( mtlname );
+ strcat( mtlname, ".mtl" );
+ Sys_Printf( "writing %s\n", mtlname );
+
+ ExtractFileBase( bspName, base );
+
+ /* open it */
+ f = fopen( name, "wb" );
+ if( f == NULL )
+ Error( "Open failed on %s\n", name );
+ fmtl = fopen( mtlname, "wb" );
+ if( fmtl == NULL )
+ Error( "Open failed on %s\n", mtlname );
+
+ /* print header */
+ fprintf( f, "o %s\r\n", base );
+ fprintf( f, "# Generated by Q3Map2 (ydnar) -convert -format obj\r\n" );
+ fprintf( f, "mtllib %s.mtl\r\n", base );
+
+ fprintf( fmtl, "# Generated by Q3Map2 (ydnar) -convert -format obj\r\n" );
+ if(lightmapsAsTexcoord)
+ {
+ int lightmapCount;
+ for( lightmapCount = 0; lightmapCount < numBSPLightmaps; lightmapCount++ )
+ ;
+ for( ; ; lightmapCount++ )
+ {
+ char buf[1024];
+ FILE *tmp;
+ snprintf(buf, sizeof(buf), "%s/lm_%04d.tga", dirname, lightmapCount);
+ buf[sizeof(buf) - 1] = 0;
+ tmp = fopen(buf, "rb");
+ if(!tmp)
+ break;
+ fclose(tmp);
+ }
+ lastLightmap = lightmapCount - 1;
+ }
+ else
+ {
+ for( i = 0; i < numBSPShaders; i++ )
+ {
+ shader = &bspShaders[ i ];
+ ConvertShaderToMTL( fmtl, shader, i );
+ }
+ }
+
+ /* walk entity list */
+ for( i = 0; i < numEntities; i++ )
+ {
+ /* get entity and model */
+ e = &entities[ i ];
+ if( i == 0 )
+ modelNum = 0;
+ else
+ {
+ key = ValueForKey( e, "model" );
+ if( key[ 0 ] != '*' )
+ continue;
+ modelNum = atoi( key + 1 );
+ }
+ model = &bspModels[ modelNum ];
+
+ /* get entity origin */
+ key = ValueForKey( e, "origin" );
+ if( key[ 0 ] == '\0' )
+ VectorClear( origin );
+ else
+ GetVectorForKey( e, "origin", origin );
+
+ /* convert model */
+ ConvertModelToOBJ( f, model, modelNum, origin );
+ }
+
+ if(lightmapsAsTexcoord)
+ {
+ for( i = firstLightmap; i <= lastLightmap; i++ )
+ ConvertLightmapToMTL( fmtl, base, i );
+ }
+
+ /* close the file and return */
+ fclose( f );
+ fclose( fmtl );
+
+ /* return to sender */
+ return 0;
+}
+
+
+
MINIMAP_MODE_GRAY, /* minimap mode */
"%s.tga", /* minimap name format */
"IBSP", /* bsp file prefix */
- 46, /* bsp file version */
+ 47, /* bsp file version */
qfalse, /* cod-style lump len/ofs order */
LoadIBSPFile, /* bsp load function */
WriteIBSPFile, /* bsp write function */
--- /dev/null
+/* -------------------------------------------------------------------------------
+
+Copyright (C) 1999-2007 id Software, Inc. and contributors.
+For a list of contributors, see the accompanying CONTRIBUTORS file.
+
+This file is part of GtkRadiant.
+
+GtkRadiant is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+----------------------------------------------------------------------------------
+
+This code has been altered significantly from its original form, to support
+several games based on the Quake III Arena engine, in the form of "Q3Map2."
+
+------------------------------------------------------------------------------- */
+
+
+
+/* marker */
+#ifndef GAME_REACTION_H
+#define GAME_REACTION_H
+
+
+
+/* -------------------------------------------------------------------------------
+
+inherit content and surface flags from game_quake3.h
+(this file must be included AFTER game_quake3.h)
+
+Additional surface flags follow. These were given to me (Rambetter) by TTI from the Reaction team.
+Note that some of these values have more than one bit set. I'm not sure how Reaction is using these
+bits, but this is what I got from TTI.
+
+------------------------------------------------------------------------------- */
+
+#define REACTION_SURF_GRAVEL 0x80000
+#define REACTION_SURF_WOOD 0x81000
+#define REACTION_SURF_CARPET 0x100000
+#define REACTION_SURF_METAL2 0x101000
+#define REACTION_SURF_GLASS 0x180000
+#define REACTION_SURF_GRASS 0x181000
+#define REACTION_SURF_SNOW 0x200000
+#define REACTION_SURF_MUD 0x201000
+#define REACTION_SURF_WOOD2 0x280000
+#define REACTION_SURF_HARDMETAL 0x281000
+#define REACTION_SURF_LEAVES 0x300000
+#define REACTION_SURF_CEMENT 0x301000
+#define REACTION_SURF_MARBLE 0x380000
+#define REACTION_SURF_SNOW2 0x381000
+#define REACTION_SURF_HARDSTEPS 0x400000
+#define REACTION_SURF_SAND 0x401000
+
+
+
+/* -------------------------------------------------------------------------------
+
+game_t struct
+
+------------------------------------------------------------------------------- */
+
+{
+ "reaction", /* -game x */
+ "Boomstick", /* default base game data dir */
+ ".Reaction", /* unix home sub-dir */
+ "reaction", /* magic path word */
+ "scripts", /* shader directory */
+ 64, /* max lightmapped surface verts */
+ 999, /* max surface verts */
+ 6000, /* max surface indexes */
+ qfalse, /* flares */
+ "flareshader", /* default flare shader */
+ qfalse, /* wolf lighting model? */
+ 128, /* lightmap width/height */
+ 1.0f, /* lightmap gamma */
+ 1.0f, /* lightmap exposure */
+ 1.0f, /* lightmap compensate */
+ 1.0f, /* lightgrid scale */
+ 1.0f, /* lightgrid ambient scale */
+ qfalse, /* light angle attenuation uses half-lambert curve */
+ qfalse, /* disable shader lightstyles hack */
+ qfalse, /* keep light entities on bsp */
+ 8, /* default patchMeta subdivisions tolerance */
+ qfalse, /* patch casting enabled */
+ qfalse, /* compile deluxemaps */
+ 0, /* deluxemaps default mode */
+ 512, /* minimap size */
+ 1.0f, /* minimap sharpener */
+ 0.0f, /* minimap border */
+ qtrue, /* minimap keep aspect */
+ MINIMAP_MODE_GRAY, /* minimap mode */
+ "%s.tga", /* minimap name format */
+ "IBSP", /* bsp file prefix */
+ 46, /* bsp file version */
+ qfalse, /* cod-style lump len/ofs order */
+ LoadIBSPFile, /* bsp load function */
+ WriteIBSPFile, /* bsp write function */
+
+ {
+ /* name contentFlags contentFlagsClear surfaceFlags surfaceFlagsClear compileFlags compileFlagsClear */
+
+ /* default */
+ { "default", Q_CONT_SOLID, -1, 0, -1, C_SOLID, -1 },
+
+
+ /* ydnar */
+ { "lightgrid", 0, 0, 0, 0, C_LIGHTGRID, 0 },
+ { "antiportal", 0, 0, 0, 0, C_ANTIPORTAL, 0 },
+ { "skip", 0, 0, 0, 0, C_SKIP, 0 },
+
+
+ /* compiler */
+ { "origin", Q_CONT_ORIGIN, Q_CONT_SOLID, 0, 0, C_ORIGIN | C_TRANSLUCENT, C_SOLID },
+ { "areaportal", Q_CONT_AREAPORTAL, Q_CONT_SOLID, 0, 0, C_AREAPORTAL | C_TRANSLUCENT, C_SOLID },
+ { "trans", Q_CONT_TRANSLUCENT, 0, 0, 0, C_TRANSLUCENT, 0 },
+ { "detail", Q_CONT_DETAIL, 0, 0, 0, C_DETAIL, 0 },
+ { "structural", Q_CONT_STRUCTURAL, 0, 0, 0, C_STRUCTURAL, 0 },
+ { "hint", 0, 0, Q_SURF_HINT, 0, C_HINT, 0 },
+ { "nodraw", 0, 0, Q_SURF_NODRAW, 0, C_NODRAW, 0 },
+
+ { "alphashadow", 0, 0, Q_SURF_ALPHASHADOW, 0, C_ALPHASHADOW | C_TRANSLUCENT, 0 },
+ { "lightfilter", 0, 0, Q_SURF_LIGHTFILTER, 0, C_LIGHTFILTER | C_TRANSLUCENT, 0 },
+ { "nolightmap", 0, 0, Q_SURF_VERTEXLIT, 0, C_VERTEXLIT, 0 },
+ { "pointlight", 0, 0, Q_SURF_VERTEXLIT, 0, C_VERTEXLIT, 0 },
+
+
+ /* game */
+ { "nonsolid", 0, Q_CONT_SOLID, Q_SURF_NONSOLID, 0, 0, C_SOLID },
+
+ { "trigger", Q_CONT_TRIGGER, Q_CONT_SOLID, 0, 0, C_TRANSLUCENT, C_SOLID },
+
+ { "water", Q_CONT_WATER, Q_CONT_SOLID, 0, 0, C_LIQUID | C_TRANSLUCENT, C_SOLID },
+ { "slime", Q_CONT_SLIME, Q_CONT_SOLID, 0, 0, C_LIQUID | C_TRANSLUCENT, C_SOLID },
+ { "lava", Q_CONT_LAVA, Q_CONT_SOLID, 0, 0, C_LIQUID | C_TRANSLUCENT, C_SOLID },
+
+ { "playerclip", Q_CONT_PLAYERCLIP, Q_CONT_SOLID, 0, 0, C_DETAIL | C_TRANSLUCENT, C_SOLID },
+ { "monsterclip", Q_CONT_MONSTERCLIP, Q_CONT_SOLID, 0, 0, C_DETAIL | C_TRANSLUCENT, C_SOLID },
+ { "nodrop", Q_CONT_NODROP, Q_CONT_SOLID, 0, 0, C_TRANSLUCENT, C_SOLID },
+
+ { "clusterportal", Q_CONT_CLUSTERPORTAL, Q_CONT_SOLID, 0, 0, C_TRANSLUCENT, C_SOLID },
+ { "donotenter", Q_CONT_DONOTENTER, Q_CONT_SOLID, 0, 0, C_TRANSLUCENT, C_SOLID },
+ { "botclip", Q_CONT_BOTCLIP, Q_CONT_SOLID, 0, 0, C_TRANSLUCENT, C_SOLID },
+
+ { "fog", Q_CONT_FOG, Q_CONT_SOLID, 0, 0, C_FOG, C_SOLID },
+ { "sky", 0, 0, Q_SURF_SKY, 0, C_SKY, 0 },
+
+ { "slick", 0, 0, Q_SURF_SLICK, 0, 0, 0 },
+
+ { "noimpact", 0, 0, Q_SURF_NOIMPACT, 0, 0, 0 },
+ { "nomarks", 0, 0, Q_SURF_NOMARKS, 0, C_NOMARKS, 0 },
+ { "ladder", 0, 0, Q_SURF_LADDER, 0, 0, 0 },
+ { "nodamage", 0, 0, Q_SURF_NODAMAGE, 0, 0, 0 },
+ { "metalsteps", 0, 0, Q_SURF_METALSTEPS, 0, 0, 0 },
+ { "flesh", 0, 0, Q_SURF_FLESH, 0, 0, 0 },
+ { "nosteps", 0, 0, Q_SURF_NOSTEPS, 0, 0, 0 },
+ { "nodlight", 0, 0, Q_SURF_NODLIGHT, 0, 0, 0 },
+ { "dust", 0, 0, Q_SURF_DUST, 0, 0, 0 },
+ { "rq3_gravel", 0, 0, REACTION_SURF_GRAVEL, 0, 0, 0 },
+ { "rq3_wood", 0, 0, REACTION_SURF_WOOD, 0, 0, 0 },
+ { "rq3_carpet", 0, 0, REACTION_SURF_CARPET, 0, 0, 0 },
+ { "rq3_metal2", 0, 0, REACTION_SURF_METAL2, 0, 0, 0 },
+ { "rq3_glass", 0, 0, REACTION_SURF_GLASS, 0, 0, 0 },
+ { "rq3_grass", 0, 0, REACTION_SURF_GRASS, 0, 0, 0 },
+ { "rq3_snow", 0, 0, REACTION_SURF_SNOW, 0, 0, 0 },
+ { "rq3_mud", 0, 0, REACTION_SURF_MUD, 0, 0, 0 },
+ { "rq3_wood2", 0, 0, REACTION_SURF_WOOD2, 0, 0, 0 },
+ { "rq3_hardmetal", 0, 0, REACTION_SURF_HARDMETAL, 0, 0, 0 },
+ { "rq3_leaves", 0, 0, REACTION_SURF_LEAVES, 0, 0, 0 },
+ { "rq3_cement", 0, 0, REACTION_SURF_CEMENT, 0, 0, 0 },
+ { "rq3_marble", 0, 0, REACTION_SURF_MARBLE, 0, 0, 0 },
+ { "rq3_snow2", 0, 0, REACTION_SURF_SNOW2, 0, 0, 0 },
+ { "rq3_hardsteps", 0, 0, REACTION_SURF_HARDSTEPS, 0, 0, 0 },
+ { "rq3_sand", 0, 0, REACTION_SURF_SAND, 0, 0, 0 },
+
+ /* null */
+ { NULL, 0, 0, 0, 0, 0, 0 }
+ }
+}
+
+
+
+/* end marker */
+#endif
else if( !strcmp( argv[ i ], "-griddirectionality" ) )
{
f = atof( argv[ i + 1 ] );
- if(f < 0) f = 0;
- if(f > gridAmbientDirectionality) f = gridAmbientDirectionality;
+ if(f > 1) f = 1;
+ if(f < gridAmbientDirectionality) gridAmbientDirectionality = f;
Sys_Printf( "Grid directionality is %f\n", f );
- gridDirectionality *= f;
+ gridDirectionality = f;
i++;
}
else if( !strcmp( argv[ i ], "-gridambientdirectionality" ) )
{
f = atof( argv[ i + 1 ] );
- if(f > gridDirectionality) f = gridDirectionality;
- if(f > 1) f = 1;
+ if(f < -1) f = -1;
+ if(f > gridDirectionality) gridDirectionality = f;
Sys_Printf( "Grid ambient directionality is %f\n", f );
- gridAmbientDirectionality *= f;
+ gridAmbientDirectionality = f;
i++;
}
lump = (byte*) header + offset;
lumpInt = LittleLong( (int) *((int*) lump) );
lumpFloat = LittleFloat( (float) *((float*) lump) );
- memcpy( lumpString, (char*) lump, (length < 1024 ? length : 1024) );
- lumpString[ 1024 ] = '\0';
+ memcpy( lumpString, (char*) lump, (length < sizeof(lumpString) ? length : sizeof(lumpString)-1) );
+ lumpString[ sizeof(lumpString)-1 ] = '\0';
/* print basic lump info */
Sys_Printf( "Lump: %d\n", i );
int (*convertFunc)( char * );
game_t *convertGame;
char ext[1024];
- qboolean map_allowed, force_bsp;
+ qboolean map_allowed, force_bsp, force_map;
/* set default */
convertFunc = ConvertBSPToASE;
convertGame = NULL;
- map_allowed = qtrue;
+ map_allowed = qfalse;
force_bsp = qfalse;
+ force_map = qfalse;
/* arg checking */
if( argc < 1 )
{
- Sys_Printf( "Usage: q3map -scale <value> [-v] <mapname>\n" );
+ Sys_Printf( "Usage: q3map -convert -format <ase|obj|map_bp|map> [-shadesasbitmap|-lightmapsastexcoord|-deluxemapsastexcoord] [-readbsp|-readmap [-meta|-patchmeta]] <mapname>\n" );
return 0;
}
convertFunc = ConvertBSPToASE;
map_allowed = qfalse;
}
+ else if( !Q_stricmp( argv[ i ], "obj" ) )
+ {
+ convertFunc = ConvertBSPToOBJ;
+ map_allowed = qfalse;
+ }
else if( !Q_stricmp( argv[ i ], "map_bp" ) )
{
convertFunc = ConvertBSPToMap_BP;
}
else if( !strcmp( argv[ i ], "-shadersasbitmap" ) )
shadersAsBitmap = qtrue;
- else if( !strcmp( argv[ i ], "-forcereadbsp" ) )
+ else if( !strcmp( argv[ i ], "-lightmapsastexcoord" ) )
+ lightmapsAsTexcoord = qtrue;
+ else if( !strcmp( argv[ i ], "-deluxemapsastexcoord" ) )
+ {
+ lightmapsAsTexcoord = qtrue;
+ deluxemap = qtrue;
+ }
+ else if( !strcmp( argv[ i ], "-readbsp" ) )
force_bsp = qtrue;
+ else if( !strcmp( argv[ i ], "-readmap" ) )
+ force_map = qtrue;
else if( !strcmp( argv[ i ], "-meta" ) )
meta = qtrue;
else if( !strcmp( argv[ i ], "-patchmeta" ) )
/* clean up map name */
strcpy(source, ExpandArg(argv[i]));
ExtractFileExtension(source, ext);
- if(!Q_stricmp(ext, "map") && !force_bsp)
+
+ if(!map_allowed && !force_map)
+ force_bsp = qtrue;
+
+ if(force_map || (!force_bsp && !Q_stricmp(ext, "map") && map_allowed))
{
if(!map_allowed)
Sys_Printf("WARNING: the requested conversion should not be done from .map files. Compile a .bsp first.\n");
ydnar: replaced with variable epsilon for djbob
*/
-#define NORMAL_EPSILON 0.00001
-#define DIST_EPSILON 0.01
-
qboolean PlaneEqual( plane_t *p, vec3_t normal, vec_t dist )
{
float ne, de;
de = distanceEpsilon;
/* compare */
- if( fabs( p->dist - dist ) <= de &&
- fabs( p->normal[ 0 ] - normal[ 0 ] ) <= ne &&
- fabs( p->normal[ 1 ] - normal[ 1 ] ) <= ne &&
- fabs( p->normal[ 2 ] - normal[ 2 ] ) <= ne )
+ // We check equality of each component since we're using '<', not '<='
+ // (the epsilons may be zero). We want to use '<' intead of '<=' to be
+ // consistent with the true meaning of "epsilon", and also because other
+ // parts of the code uses this inequality.
+ if ((p->dist == dist || fabs(p->dist - dist) < de) &&
+ (p->normal[0] == normal[0] || fabs(p->normal[0] - normal[0]) < ne) &&
+ (p->normal[1] == normal[1] || fabs(p->normal[1] - normal[1]) < ne) &&
+ (p->normal[2] == normal[2] || fabs(p->normal[2] - normal[2]) < ne))
return qtrue;
/* different */
/*
SnapNormal()
-snaps a near-axial normal vector
+Snaps a near-axial normal vector.
+Returns qtrue if and only if the normal was adjusted.
*/
-void SnapNormal( vec3_t normal )
+qboolean SnapNormal( vec3_t normal )
{
+#if Q3MAP2_EXPERIMENTAL_SNAP_NORMAL_FIX
+ int i;
+ qboolean adjusted = qfalse;
+
+ // A change from the original SnapNormal() is that we snap each
+ // component that's close to 0. So for example if a normal is
+ // (0.707, 0.707, 0.0000001), it will get snapped to lie perfectly in the
+ // XY plane (its Z component will be set to 0 and its length will be
+ // normalized). The original SnapNormal() didn't snap such vectors - it
+ // only snapped vectors that were near a perfect axis.
+
+ for (i = 0; i < 3; i++)
+ {
+ if (normal[i] != 0.0 && -normalEpsilon < normal[i] && normal[i] < normalEpsilon)
+ {
+ normal[i] = 0.0;
+ adjusted = qtrue;
+ }
+ }
+
+ if (adjusted)
+ {
+ VectorNormalize(normal, normal);
+ return qtrue;
+ }
+ return qfalse;
+#else
int i;
+ // I would suggest that you uncomment the following code and look at the
+ // results:
+
+ /*
+ Sys_Printf("normalEpsilon is %f\n", normalEpsilon);
+ for (i = 0;; i++)
+ {
+ normal[0] = 1.0;
+ normal[1] = 0.0;
+ normal[2] = i * 0.000001;
+ VectorNormalize(normal, normal);
+ if (1.0 - normal[0] >= normalEpsilon) {
+ Sys_Printf("(%f %f %f)\n", normal[0], normal[1], normal[2]);
+ Error("SnapNormal: test completed");
+ }
+ }
+ */
+
+ // When the normalEpsilon is 0.00001, the loop will break out when normal is
+ // (0.999990 0.000000 0.004469). In other words, this is the vector closest
+ // to axial that will NOT be snapped. Anything closer will be snaped. Now,
+ // 0.004469 is close to 1/225. The length of a circular quarter-arc of radius
+ // 1 is PI/2, or about 1.57. And 0.004469/1.57 is about 0.0028, or about
+ // 1/350. Expressed a different way, 1/350 is also about 0.26/90.
+ // This means is that a normal with an angle that is within 1/4 of a degree
+ // from axial will be "snapped". My belief is that the person who wrote the
+ // code below did not intend it this way. I think the person intended that
+ // the epsilon be measured against the vector components close to 0, not 1.0.
+ // I think the logic should be: if 2 of the normal components are within
+ // epsilon of 0, then the vector can be snapped to be perfectly axial.
+ // We may consider adjusting the epsilon to a larger value when we make this
+ // code fix.
+
for( i = 0; i < 3; i++ )
{
if( fabs( normal[ i ] - 1 ) < normalEpsilon )
{
VectorClear( normal );
normal[ i ] = 1;
- break;
+ return qtrue;
}
if( fabs( normal[ i ] - -1 ) < normalEpsilon )
{
VectorClear( normal );
normal[ i ] = -1;
- break;
+ return qtrue;
}
}
+ return qfalse;
+#endif
}
SnapPlane reenabled by namespace because of multiple reports of
q3map2-crashes which were triggered by this patch.
*/
- // div0: ensure the point "center" stays on the plane (actually, this
- // rotates the plane around the point center).
- // if center lies on the plane, it is guaranteed to stay on the plane by
- // this fix.
- vec_t centerDist = DotProduct(normal, center);
SnapNormal( normal );
- *dist += (DotProduct(normal, center) - centerDist);
+
+ // TODO: Rambetter has some serious comments here as well. First off,
+ // in the case where a normal is non-axial, there is nothing special
+ // about integer distances. I would think that snapping a distance might
+ // make sense for axial normals, but I'm not so sure about snapping
+ // non-axial normals. A shift by 0.01 in a plane, multiplied by a clipping
+ // against another plane that is 5 degrees off, and we introduce 0.1 error
+ // easily. A 0.1 error in a vertex is where problems start to happen, such
+ // as disappearing triangles.
+
+ // Second, assuming we have snapped the normal above, let's say that the
+ // plane we just snapped was defined for some points that are actually
+ // quite far away from normal * dist. Well, snapping the normal in this
+ // case means that we've just moved those points by potentially many units!
+ // Therefore, if we are going to snap the normal, we need to know the
+ // points we're snapping for so that the plane snaps with those points in
+ // mind (points remain close to the plane).
+
+ // I would like to know exactly which problems SnapPlane() is trying to
+ // solve so that we can better engineer it (I'm not saying that SnapPlane()
+ // should be removed altogether). Fix all this snapping code at some point!
if( fabs( *dist - Q_rint( *dist ) ) < distanceEpsilon )
*dist = Q_rint( *dist );
}
+/*
+SnapPlaneImproved()
+snaps a plane to normal/distance epsilons, improved code
+*/
+void SnapPlaneImproved(vec3_t normal, vec_t *dist, int numPoints, const vec3_t *points)
+{
+ int i;
+ vec3_t center;
+ vec_t distNearestInt;
+
+ if (SnapNormal(normal))
+ {
+ if (numPoints > 0)
+ {
+ // Adjust the dist so that the provided points don't drift away.
+ VectorClear(center);
+ for (i = 0; i < numPoints; i++)
+ {
+ VectorAdd(center, points[i], center);
+ }
+ for (i = 0; i < 3; i++) { center[i] = center[i] / numPoints; }
+ *dist = DotProduct(normal, center);
+ }
+ }
+
+ if (VectorIsOnAxis(normal))
+ {
+ // Only snap distance if the normal is an axis. Otherwise there
+ // is nothing "natural" about snapping the distance to an integer.
+ distNearestInt = Q_rint(*dist);
+ if (-distanceEpsilon < *dist - distNearestInt && *dist - distNearestInt < distanceEpsilon)
+ {
+ *dist = distNearestInt;
+ }
+ }
+}
+
/*
int pidx;
plane_t *p;
vec_t d;
- vec3_t centerofweight;
vec3_t normal;
- VectorClear(centerofweight);
- for(i = 0; i < numPoints; ++i)
- VectorMA(centerofweight, 1.0 / numPoints, points[i], centerofweight);
-
- /* hash the plane */
VectorCopy(innormal, normal);
- SnapPlane( normal, &dist, centerofweight );
+#if Q3MAP2_EXPERIMENTAL_SNAP_PLANE_FIX
+ SnapPlaneImproved(normal, &dist, numPoints, (const vec3_t *) points);
+#else
+ SnapPlane( normal, &dist );
+#endif
+ /* hash the plane */
hash = (PLANE_HASHES - 1) & (int) fabs( dist );
/* search the border bins as well */
/* ydnar: test supplied points against this plane */
for( j = 0; j < numPoints; j++ )
{
+ // NOTE: When dist approaches 2^16, the resolution of 32 bit floating
+ // point number is greatly decreased. The distanceEpsilon cannot be
+ // very small when world coordinates extend to 2^16. Making the
+ // dot product here in 64 bit land will not really help the situation
+ // because the error will already be carried in dist.
d = DotProduct( points[ j ], p->normal ) - p->dist;
- if( fabs( d ) > distanceEpsilon )
- break;
+ d = fabs(d);
+ if (d != 0.0 && d >= distanceEpsilon)
+ break; // Point is too far from plane.
}
/* found a matching plane */
plane_t *p;
vec3_t normal;
-
- vec3_t centerofweight;
-
- VectorClear(centerofweight);
- for(i = 0; i < numPoints; ++i)
- VectorMA(centerofweight, 1.0 / numPoints, points[i], centerofweight);
-
VectorCopy(innormal, normal);
- SnapPlane( normal, &dist, centerofweight );
+#if Q3MAP2_EXPERIMENTAL_SNAP_PLANE_FIX
+ SnapPlaneImproved(normal, &dist, numPoints, (const vec3_t *) points);
+#else
+ SnapPlane( normal, &dist );
+#endif
for( i = 0, p = mapplanes; i < nummapplanes; i++, p++ )
{
if( !PlaneEqual( p, normal, dist ) )
/* found a matching plane */
if( j >= numPoints )
return i;
+ // TODO: Note that the non-USE_HASHING code does not compute epsilons
+ // for the provided points. It should do that. I think this code
+ // is unmaintained because nobody sets USE_HASHING to off.
}
return CreateNewFloatPlane( normal, dist );
int MapPlaneFromPoints( vec3_t *p )
{
+#if Q3MAP2_EXPERIMENTAL_HIGH_PRECISION_MATH_FIXES
+ vec3_accu_t paccu[3];
+ vec3_accu_t t1, t2, normalAccu;
+ vec3_t normal;
+ vec_t dist;
+
+ VectorCopyRegularToAccu(p[0], paccu[0]);
+ VectorCopyRegularToAccu(p[1], paccu[1]);
+ VectorCopyRegularToAccu(p[2], paccu[2]);
+
+ VectorSubtractAccu(paccu[0], paccu[1], t1);
+ VectorSubtractAccu(paccu[2], paccu[1], t2);
+ CrossProductAccu(t1, t2, normalAccu);
+ VectorNormalizeAccu(normalAccu, normalAccu);
+ // TODO: A 32 bit float for the plane distance isn't enough resolution
+ // if the plane is 2^16 units away from the origin (the "epsilon" approaches
+ // 0.01 in that case).
+ dist = (vec_t) DotProductAccu(paccu[0], normalAccu);
+ VectorCopyAccuToRegular(normalAccu, normal);
+
+ return FindFloatPlane(normal, dist, 3, p);
+#else
vec3_t t1, t2, normal;
vec_t dist;
/* store the plane */
return FindFloatPlane( normal, dist, 3, p );
+#endif
}
char *skinfilecontent;
int skinfilesize;
char *skinfileptr, *skinfilenextptr;
- FILE *skinfilehandle;
/* get model */
/* load skin file */
snprintf(skinfilename, sizeof(skinfilename), "%s_%d.skin", name, skin);
skinfilename[sizeof(skinfilename)-1] = 0;
- skinfilehandle = fopen(skinfilename, "r");
skinfilesize = vfsLoadFile(skinfilename, (void**) &skinfilecontent, 0);
if(skinfilesize < 0 && skin != 0)
{
/* copy xyz */
VectorCopy( dv->xyz, points[ j ] );
- VectorCopy( dv->xyz, backs[ j ] );
-
- /* find nearest axial to normal and push back points opposite */
- /* note: this doesn't work as well as simply using the plane of the triangle, below */
- for( k = 0; k < 3; k++ )
- {
- if( fabs( dv->normal[ k ] ) >= fabs( dv->normal[ (k + 1) % 3 ] ) &&
- fabs( dv->normal[ k ] ) >= fabs( dv->normal[ (k + 2) % 3 ] ) )
- {
- backs[ j ][ k ] += dv->normal[ k ] < 0.0f ? 64.0f : -64.0f;
- break;
- }
- }
}
VectorCopy( points[0], points[3] ); // for cyclic usage
void AddGamePath( char *path )
{
+ int i;
+
/* dummy check */
if( path == NULL || path[ 0 ] == '\0' || numGamePaths >= MAX_GAME_PATHS )
return;
strcpy( gamePaths[ numGamePaths ], path );
CleanPath( gamePaths[ numGamePaths ] );
numGamePaths++;
+
+ /* don't add it if it's already there */
+ for (i = 0; i < numGamePaths - 1; i++)
+ {
+ if (strcmp(gamePaths[i], gamePaths[numGamePaths - 1]) == 0)
+ {
+ free(gamePaths[numGamePaths - 1]);
+ gamePaths[numGamePaths - 1] = NULL;
+ numGamePaths--;
+ break;
+ }
+ }
+
}
r = PlaceOccupant( headnode, origin, e, skybox );
if( r )
inside = qtrue;
- if( (!r || tree->outside_node.occupied) && !tripped )
+ if( !r )
+ {
+ Sys_Printf( "Entity %i, Brush %i: Entity in solid\n", e->mapEntityNum, 0);
+ }
+ else if( tree->outside_node.occupied && !tripped )
{
xml_Select( "Entity leaked", e->mapEntityNum, 0, qfalse );
tripped = qtrue;
------------------------------------------------------------------------------- */
+/* temporary hacks and tests (please keep off in SVN to prevent anyone's legacy map from screwing up) */
+/* 2011-01-10 TTimo says we should turn these on in SVN, so turning on now */
+#define Q3MAP2_EXPERIMENTAL_HIGH_PRECISION_MATH_FIXES 1
+#define Q3MAP2_EXPERIMENTAL_SNAP_NORMAL_FIX 1
+#define Q3MAP2_EXPERIMENTAL_SNAP_PLANE_FIX 1
+
/* general */
#define MAX_QPATH 64
/* convert_ase.c */
int ConvertBSPToASE( char *bspName );
+/* convert_obj.c */
+int ConvertBSPToOBJ( char *bspName );
+
/* brush.c */
sideRef_t *AllocSideRef( side_t *side, sideRef_t *next );
,
#include "game_qfusion.h" /* qfusion game */
,
+ #include "game_reaction.h" /* must be after game_quake3.h */
+ ,
#include "game_darkplaces.h" /* vortex: darkplaces q1 engine */
,
#include "game_dq.h" /* vortex: deluxe quake game ( darkplaces q1 engine) */
Q_EXTERN qboolean lightmapTriangleCheck Q_ASSIGN(qfalse);
Q_EXTERN qboolean lightmapExtraVisClusterNudge Q_ASSIGN(qfalse);
Q_EXTERN qboolean lightmapFill Q_ASSIGN(qfalse);
+
+#if Q3MAP2_EXPERIMENTAL_SNAP_NORMAL_FIX
+// Increasing the normalEpsilon to compensate for new logic in SnapNormal(), where
+// this epsilon is now used to compare against 0 components instead of the 1 or -1
+// components. Unfortunately, normalEpsilon is also used in PlaneEqual(). So changing
+// this will affect anything that calls PlaneEqual() as well (which are, at the time
+// of this writing, FindFloatPlane() and AddBrushBevels()).
+Q_EXTERN double normalEpsilon Q_ASSIGN(0.00005);
+#else
Q_EXTERN double normalEpsilon Q_ASSIGN( 0.00001 );
+#endif
+
+#if Q3MAP2_EXPERIMENTAL_HIGH_PRECISION_MATH_FIXES
+// NOTE: This distanceEpsilon is too small if parts of the map are at maximum world
+// extents (in the range of plus or minus 2^16). The smallest epsilon at values
+// close to 2^16 is about 0.007, which is greater than distanceEpsilon. Therefore,
+// maps should be constrained to about 2^15, otherwise slightly undesirable effects
+// may result. The 0.01 distanceEpsilon used previously is just too coarse in my
+// opinion. The real fix for this problem is to have 64 bit distances and then make
+// this epsilon even smaller, or to constrain world coordinates to plus minus 2^15
+// (or even 2^14).
+Q_EXTERN double distanceEpsilon Q_ASSIGN(0.005);
+#else
Q_EXTERN double distanceEpsilon Q_ASSIGN( 0.01 );
+#endif
/* bsp */
// for .ase conversion
Q_EXTERN qboolean shadersAsBitmap Q_ASSIGN( qfalse );
+Q_EXTERN qboolean lightmapsAsTexcoord Q_ASSIGN( qfalse );
Q_EXTERN light_t *lights;
Q_EXTERN int numPointLights;
projects / xonotic / netradiant.git / commitdiff