#include "quakedef.h"
#include "polygon.h"
+#include "portals.h"
#define MAXRECURSIVEPORTALPLANES 1024
#define MAXRECURSIVEPORTALS 256
static int portal_markid = 0;
static float boxpoints[4*3];
-int Portal_PortalThroughPortalPlanes(tinyplane_t *clipplanes, int clipnumplanes, float *targpoints, int targnumpoints, float *out, int maxpoints)
+static int Portal_PortalThroughPortalPlanes(tinyplane_t *clipplanes, int clipnumplanes, float *targpoints, int targnumpoints, float *out, int maxpoints)
{
- int numpoints, i;
- if (targnumpoints < 3)
- return targnumpoints;
- if (maxpoints < 3)
- return -1;
- numpoints = targnumpoints;
- memcpy(&portaltemppoints[0][0][0], targpoints, numpoints * 3 * sizeof(float));
- for (i = 0;i < clipnumplanes;i++)
+ int numpoints = targnumpoints, i, w;
+ if (numpoints < 1)
+ return numpoints;
+ if (maxpoints > 256)
+ maxpoints = 256;
+ w = 0;
+ memcpy(&portaltemppoints[w][0][0], targpoints, numpoints * 3 * sizeof(float));
+ for (i = 0;i < clipnumplanes && numpoints > 0;i++)
{
- PolygonF_Divide(numpoints, &portaltemppoints[0][0][0], clipplanes[i].normal[0], clipplanes[i].normal[1], clipplanes[i].normal[2], clipplanes[i].dist, 1.0f/32.0f, 256, &portaltemppoints[1][0][0], &numpoints, 0, NULL, NULL);
- if (numpoints < 3)
- return numpoints;
- memcpy(&portaltemppoints[0][0][0], &portaltemppoints[1][0][0], numpoints * 3 * sizeof(float));
+ PolygonF_Divide(numpoints, &portaltemppoints[w][0][0], clipplanes[i].normal[0], clipplanes[i].normal[1], clipplanes[i].normal[2], clipplanes[i].dist, 1.0f/32.0f, 256, &portaltemppoints[1-w][0][0], &numpoints, 0, NULL, NULL, NULL);
+ w = 1-w;
+ numpoints = min(numpoints, 256);
}
- if (numpoints > maxpoints)
- return -1;
- memcpy(out, &portaltemppoints[0][0][0], numpoints * 3 * sizeof(float));
+ numpoints = min(numpoints, maxpoints);
+ if (numpoints > 0)
+ memcpy(out, &portaltemppoints[w][0][0], numpoints * 3 * sizeof(float));
return numpoints;
}
-int Portal_RecursiveFlowSearch (mleaf_t *leaf, vec3_t eye, int firstclipplane, int numclipplanes)
+static int Portal_RecursiveFlowSearch (mleaf_t *leaf, vec3_t eye, int firstclipplane, int numclipplanes)
{
mportal_t *p;
int newpoints, i, prev;
VectorSubtract(eye, portaltemppoints2[i], v1);
VectorSubtract(portaltemppoints2[prev], portaltemppoints2[i], v2);
CrossProduct(v1, v2, newplanes[i].normal);
- VectorNormalizeFast(newplanes[i].normal);
+ VectorNormalize(newplanes[i].normal);
newplanes[i].dist = DotProduct(eye, newplanes[i].normal);
if (DotProduct(newplanes[i].normal, center) <= newplanes[i].dist)
{
return false;
}
-void Portal_PolygonRecursiveMarkLeafs(mnode_t *node, float *polypoints, int numpoints)
+static void Portal_PolygonRecursiveMarkLeafs(mnode_t *node, float *polypoints, int numpoints)
{
int i, front;
float *p;
goto loc0;
}
-int Portal_CheckPolygon(model_t *model, vec3_t eye, float *polypoints, int numpoints)
+int Portal_CheckPolygon(dp_model_t *model, vec3_t eye, float *polypoints, int numpoints)
{
int i, prev, returnvalue;
mleaf_t *eyeleaf;
portal_markid++;
- Mod_CheckLoaded(model);
Portal_PolygonRecursiveMarkLeafs(model->brush.data_nodes, polypoints, numpoints);
eyeleaf = model->brush.PointInLeaf(model, eye);
VectorSubtract(eye, (&polypoints[i * 3]), v1);
VectorSubtract((&polypoints[prev * 3]), (&polypoints[i * 3]), v2);
CrossProduct(v1, v2, portalplanes[i].normal);
- VectorNormalizeFast(portalplanes[i].normal);
+ VectorNormalize(portalplanes[i].normal);
portalplanes[i].dist = DotProduct(eye, portalplanes[i].normal);
if (DotProduct(portalplanes[i].normal, center) <= portalplanes[i].dist)
{
}\
}
-int Portal_CheckBox(model_t *model, vec3_t eye, vec3_t a, vec3_t b)
+int Portal_CheckBox(dp_model_t *model, vec3_t eye, vec3_t a, vec3_t b)
{
if (eye[0] >= (a[0] - 1.0f) && eye[0] < (b[0] + 1.0f)
&& eye[1] >= (a[1] - 1.0f) && eye[1] < (b[1] + 1.0f)
return false;
}
-vec3_t trianglepoints[3];
-
typedef struct portalrecursioninfo_s
{
int exact;
vec3_t boxmaxs;
int numsurfaces;
int *surfacelist;
- qbyte *surfacepvs;
+ unsigned char *surfacepvs;
int numleafs;
+ unsigned char *visitingleafpvs; // used to prevent infinite loops
int *leaflist;
- qbyte *leafpvs;
- model_t *model;
+ unsigned char *leafpvs;
+ unsigned char *shadowtrispvs;
+ unsigned char *lighttrispvs;
+ dp_model_t *model;
vec3_t eye;
float *updateleafsmins;
float *updateleafsmaxs;
}
portalrecursioninfo_t;
-void Portal_RecursiveFlow (portalrecursioninfo_t *info, mleaf_t *leaf, int firstclipplane, int numclipplanes)
+static void Portal_RecursiveFlow (portalrecursioninfo_t *info, mleaf_t *leaf, int firstclipplane, int numclipplanes)
{
mportal_t *p;
int newpoints, i, prev;
float dist;
- vec3_t center, v1, v2;
+ vec3_t center;
tinyplane_t *newplanes;
+ int leafindex = leaf - info->model->brush.data_leafs;
+
+ if (CHECKPVSBIT(info->visitingleafpvs, leafindex))
+ return; // recursive loop of leafs (cmc.bsp for megatf coop)
+
+ SETPVSBIT(info->visitingleafpvs, leafindex);
for (i = 0;i < 3;i++)
{
if (info->leafpvs)
{
- int leafindex = leaf - info->model->brush.data_leafs;
if (!CHECKPVSBIT(info->leafpvs, leafindex))
{
SETPVSBIT(info->leafpvs, leafindex);
for (i = 0;i < leaf->numleafsurfaces;i++)
{
int surfaceindex = leaf->firstleafsurface[i];
- if (!CHECKPVSBIT(info->surfacepvs, surfaceindex))
+ msurface_t *surface = info->model->data_surfaces + surfaceindex;
+ if (BoxesOverlap(surface->mins, surface->maxs, info->boxmins, info->boxmaxs))
{
- msurface_t *surface = info->model->data_surfaces + surfaceindex;
- if (BoxesOverlap(surface->mins, surface->maxs, info->boxmins, info->boxmaxs))
+ qboolean insidebox = BoxInsideBox(surface->mins, surface->maxs, info->boxmins, info->boxmaxs);
+ qboolean addedtris = false;
+ int t, tend;
+ const int *elements;
+ const float *vertex3f;
+ float v[9];
+ vertex3f = info->model->surfmesh.data_vertex3f;
+ elements = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle);
+ for (t = surface->num_firsttriangle, tend = t + surface->num_triangles;t < tend;t++, elements += 3)
{
- if (info->exact)
+ VectorCopy(vertex3f + elements[0] * 3, v + 0);
+ VectorCopy(vertex3f + elements[1] * 3, v + 3);
+ VectorCopy(vertex3f + elements[2] * 3, v + 6);
+ if (PointInfrontOfTriangle(info->eye, v + 0, v + 3, v + 6)
+ && (insidebox || TriangleBBoxOverlapsBox(v, v + 3, v + 6, info->boxmins, info->boxmaxs))
+ && (!info->exact || Portal_PortalThroughPortalPlanes(&portalplanes[firstclipplane], numclipplanes, v, 3, &portaltemppoints2[0][0], 256) > 0))
{
- int j;
- const int *elements;
- const float *vertex3f;
- float v[9], trimins[3], trimaxs[3];
- vertex3f = surface->groupmesh->data_vertex3f;
- elements = (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle);
- for (j = 0;j < surface->num_triangles;j++, elements += 3)
- {
- VectorCopy(vertex3f + elements[0] * 3, v + 0);
- VectorCopy(vertex3f + elements[1] * 3, v + 3);
- VectorCopy(vertex3f + elements[2] * 3, v + 6);
- if (PointInfrontOfTriangle(info->eye, v + 0, v + 3, v + 6))
- {
- trimins[0] = min(v[0], min(v[3], v[6]));
- trimaxs[0] = max(v[0], max(v[3], v[6]));
- trimins[1] = min(v[1], min(v[4], v[7]));
- trimaxs[1] = max(v[1], max(v[4], v[7]));
- trimins[2] = min(v[2], min(v[5], v[8]));
- trimaxs[2] = max(v[2], max(v[5], v[8]));
- if (BoxesOverlap(trimins, trimaxs, info->boxmins, info->boxmaxs) && Portal_PortalThroughPortalPlanes(&portalplanes[firstclipplane], numclipplanes, v, 3, &portaltemppoints2[0][0], 256) >= 3)
- {
- SETPVSBIT(info->surfacepvs, surfaceindex);
- info->surfacelist[info->numsurfaces++] = surfaceindex;
- break;
- }
- }
- }
- }
- else
- {
- SETPVSBIT(info->surfacepvs, surfaceindex);
- info->surfacelist[info->numsurfaces++] = surfaceindex;
+ addedtris = true;
+ if (info->shadowtrispvs)
+ SETPVSBIT(info->shadowtrispvs, t);
+ if (info->lighttrispvs)
+ SETPVSBIT(info->lighttrispvs, t);
}
}
+ if (addedtris && !CHECKPVSBIT(info->surfacepvs, surfaceindex))
+ {
+ SETPVSBIT(info->surfacepvs, surfaceindex);
+ info->surfacelist[info->numsurfaces++] = surfaceindex;
+ }
}
}
}
VectorAdd(center, portaltemppoints2[i], center);
// ixtable is a 1.0f / N table
VectorScale(center, ixtable[newpoints], center);
- // calculate the planes, and make sure the polygon can see it's own center
+ // calculate the planes, and make sure the polygon can see its own center
newplanes = &portalplanes[firstclipplane + numclipplanes];
for (prev = newpoints - 1, i = 0;i < newpoints;prev = i, i++)
{
- VectorSubtract(portaltemppoints2[prev], portaltemppoints2[i], v1);
- VectorSubtract(info->eye, portaltemppoints2[i], v2);
- CrossProduct(v1, v2, newplanes[i].normal);
- VectorNormalizeFast(newplanes[i].normal);
+ TriangleNormal(portaltemppoints2[prev], portaltemppoints2[i], info->eye, newplanes[i].normal);
+ VectorNormalize(newplanes[i].normal);
newplanes[i].dist = DotProduct(info->eye, newplanes[i].normal);
if (DotProduct(newplanes[i].normal, center) <= newplanes[i].dist)
{
- // polygon can't see it's own center, discard and use parent portal
+ // polygon can't see its own center, discard and use parent portal
break;
}
}
}
}
}
+
+ CLEARPVSBIT(info->visitingleafpvs, leafindex);
}
-void Portal_RecursiveFindLeafForFlow(portalrecursioninfo_t *info, mnode_t *node)
+static void Portal_RecursiveFindLeafForFlow(portalrecursioninfo_t *info, mnode_t *node)
{
if (node->plane)
{
}
}
-void Portal_Visibility(model_t *model, const vec3_t eye, int *leaflist, qbyte *leafpvs, int *numleafspointer, int *surfacelist, qbyte *surfacepvs, int *numsurfacespointer, const mplane_t *frustumplanes, int numfrustumplanes, int exact, const float *boxmins, const float *boxmaxs, float *updateleafsmins, float *updateleafsmaxs)
+void Portal_Visibility(dp_model_t *model, const vec3_t eye, int *leaflist, unsigned char *leafpvs, int *numleafspointer, int *surfacelist, unsigned char *surfacepvs, int *numsurfacespointer, const mplane_t *frustumplanes, int numfrustumplanes, int exact, const float *boxmins, const float *boxmaxs, float *updateleafsmins, float *updateleafsmaxs, unsigned char *shadowtrispvs, unsigned char *lighttrispvs, unsigned char *visitingleafpvs)
{
int i;
portalrecursioninfo_t info;
return;
}
- Mod_CheckLoaded(model);
-
if (!model->brush.data_nodes)
{
Con_Print("Portal_Visibility: not a brush model\n");
info.surfacelist = surfacelist;
info.surfacepvs = surfacepvs;
info.numleafs = 0;
+ info.visitingleafpvs = visitingleafpvs;
info.leaflist = leaflist;
info.leafpvs = leafpvs;
info.model = model;
info.numfrustumplanes = numfrustumplanes;
info.updateleafsmins = updateleafsmins;
info.updateleafsmaxs = updateleafsmaxs;
+ info.shadowtrispvs = shadowtrispvs;
+ info.lighttrispvs = lighttrispvs;
Portal_RecursiveFindLeafForFlow(&info, model->brush.data_nodes);
projects / xonotic / darkplaces.git / blobdiff