refdef_t r_refdef;
cvar_t r_showtris = {0, "r_showtris", "0"};
+cvar_t r_shownormals = {0, "r_shownormals", "0"};
cvar_t r_drawentities = {0, "r_drawentities","1"};
cvar_t r_drawviewmodel = {0, "r_drawviewmodel","1"};
cvar_t r_speeds = {0, "r_speeds","0"};
rtexture_t *r_texture_notexture;
rtexture_t *r_texture_whitecube;
rtexture_t *r_texture_normalizationcube;
+rtexture_t *r_texture_fogattenuation;
+rtexture_t *r_texture_fogintensity;
void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b)
{
vec3_t fogcolor;
vec_t fogdensity;
+vec_t fogrange;
+vec_t fograngerecip;
+int fogtableindex;
+vec_t fogtabledistmultiplier;
+float fogtable[FOGTABLEWIDTH];
float fog_density, fog_red, fog_green, fog_blue;
qboolean fogenabled;
qboolean oldgl_fogenable;
{
fogenabled = true;
fogdensity = -4000.0f / (fog_density * fog_density);
+ // this is the point where the fog reaches 0.9986 alpha, which we
+ // consider a good enough cutoff point for the texture
+ // (0.9986 * 256 == 255.6)
+ fogrange = 400 / fog_density;
+ fograngerecip = 1.0f / fogrange;
+ fogtabledistmultiplier = FOGTABLEWIDTH * fograngerecip;
// fog color was already set
}
else
// FIXME: move this to client?
void FOG_registercvars(void)
{
+ int x;
+ double r, alpha;
+
if (gamemode == GAME_NEHAHRA)
{
Cvar_RegisterVariable (&gl_fogenable);
Cvar_RegisterVariable (&gl_fogstart);
Cvar_RegisterVariable (&gl_fogend);
}
+
+ r = (-1.0/256.0) * (FOGTABLEWIDTH * FOGTABLEWIDTH);
+ for (x = 0;x < FOGTABLEWIDTH;x++)
+ {
+ alpha = exp(r / ((double)x*(double)x));
+ if (x == FOGTABLEWIDTH - 1)
+ alpha = 1;
+ fogtable[x] = bound(0, alpha, 1);
+ }
}
static void R_BuildBlankTextures(void)
{
- qbyte data[4];
+ unsigned char data[4];
data[0] = 128; // normal X
data[1] = 128; // normal Y
data[2] = 255; // normal Z
static void R_BuildNoTexture(void)
{
int x, y;
- qbyte pix[16][16][4];
+ unsigned char pix[16][16][4];
// this makes a light grey/dark grey checkerboard texture
for (y = 0;y < 16;y++)
{
static void R_BuildWhiteCube(void)
{
- qbyte data[6*1*1*4];
+ unsigned char data[6*1*1*4];
data[ 0] = 255;data[ 1] = 255;data[ 2] = 255;data[ 3] = 255;
data[ 4] = 255;data[ 5] = 255;data[ 6] = 255;data[ 7] = 255;
data[ 8] = 255;data[ 9] = 255;data[10] = 255;data[11] = 255;
vec3_t v;
vec_t s, t, intensity;
#define NORMSIZE 64
- qbyte data[6][NORMSIZE][NORMSIZE][4];
+ unsigned char data[6][NORMSIZE][NORMSIZE][4];
for (side = 0;side < 6;side++)
{
for (y = 0;y < NORMSIZE;y++)
r_texture_normalizationcube = R_LoadTextureCubeMap(r_main_texturepool, "normalcube", NORMSIZE, &data[0][0][0][0], TEXTYPE_RGBA, TEXF_PRECACHE | TEXF_CLAMP, NULL);
}
+static void R_BuildFogTexture(void)
+{
+ int x, b;
+ double r, alpha;
+#define FOGWIDTH 64
+ unsigned char data1[FOGWIDTH][4];
+ unsigned char data2[FOGWIDTH][4];
+ r = (-1.0/256.0) * (FOGWIDTH * FOGWIDTH);
+ for (x = 0;x < FOGWIDTH;x++)
+ {
+ alpha = exp(r / ((double)x*(double)x));
+ if (x == FOGWIDTH - 1)
+ alpha = 1;
+ b = (int)(256.0 * alpha);
+ b = bound(0, b, 255);
+ data1[x][0] = 255 - b;
+ data1[x][1] = 255 - b;
+ data1[x][2] = 255 - b;
+ data1[x][3] = 255;
+ data2[x][0] = b;
+ data2[x][1] = b;
+ data2[x][2] = b;
+ data2[x][3] = 255;
+ }
+ r_texture_fogattenuation = R_LoadTexture2D(r_main_texturepool, "fogattenuation", FOGWIDTH, 1, &data1[0][0], TEXTYPE_RGBA, TEXF_PRECACHE | TEXF_FORCELINEAR | TEXF_CLAMP, NULL);
+ r_texture_fogintensity = R_LoadTexture2D(r_main_texturepool, "fogintensity", FOGWIDTH, 1, &data2[0][0], TEXTYPE_RGBA, TEXF_PRECACHE | TEXF_FORCELINEAR | TEXF_CLAMP, NULL);
+}
+
void gl_main_start(void)
{
r_main_texturepool = R_AllocTexturePool();
R_BuildWhiteCube();
R_BuildNormalizationCube();
}
+ R_BuildFogTexture();
}
void gl_main_shutdown(void)
if (l >= 0 && !strcmp(entname + l, ".bsp"))
{
strcpy(entname + l, ".ent");
- if ((entities = (char *)FS_LoadFile(entname, tempmempool, true)))
+ if ((entities = (char *)FS_LoadFile(entname, tempmempool, true, NULL)))
{
CL_ParseEntityLump(entities);
Mem_Free(entities);
// FIXME: move this to client?
FOG_registercvars();
Cvar_RegisterVariable(&r_showtris);
+ Cvar_RegisterVariable(&r_shownormals);
Cvar_RegisterVariable(&r_drawentities);
Cvar_RegisterVariable(&r_drawviewmodel);
Cvar_RegisterVariable(&r_speeds);
static void R_BlendView(void)
{
+ int screenwidth, screenheight;
+ qboolean dobloom;
+ qboolean doblend;
rmeshstate_t m;
- if (r_refdef.viewblend[3] < 0.01f && !r_bloom.integer)
+ // set the (poorly named) screenwidth and screenheight variables to
+ // a power of 2 at least as large as the screen, these will define the
+ // size of the texture to allocate
+ for (screenwidth = 1;screenwidth < vid.width;screenwidth *= 2);
+ for (screenheight = 1;screenheight < vid.height;screenheight *= 2);
+
+ doblend = r_refdef.viewblend[3] >= 0.01f;
+ dobloom = r_bloom.integer && screenwidth <= gl_max_texture_size && screenheight <= gl_max_texture_size && r_bloom_resolution.value >= 32 && r_bloom_power.integer >= 1 && r_bloom_power.integer < 100 && r_bloom_blur.value >= 0 && r_bloom_blur.value < 512;
+
+ if (!dobloom && !doblend)
return;
GL_SetupView_Mode_Ortho(0, 0, 1, 1, -10, 100);
varray_vertex3f[3] = 1;varray_vertex3f[4] = 0;varray_vertex3f[5] = 0;
varray_vertex3f[6] = 1;varray_vertex3f[7] = 1;varray_vertex3f[8] = 0;
varray_vertex3f[9] = 0;varray_vertex3f[10] = 1;varray_vertex3f[11] = 0;
- if (r_bloom.integer && r_bloom_resolution.value >= 32 && r_bloom_power.integer >= 1 && r_bloom_power.integer < 100 && r_bloom_blur.value >= 0 && r_bloom_blur.value < 512)
+ if (dobloom)
{
- int screenwidth, screenheight, bloomwidth, bloomheight, x, dobloomblend, range;
+ int bloomwidth, bloomheight, x, dobloomblend, range;
float xoffset, yoffset, r;
renderstats.bloom++;
- // set the (poorly named) screenwidth and screenheight variables to
- // a power of 2 at least as large as the screen, these will define the
- // size of the texture to allocate
- for (screenwidth = 1;screenwidth < vid.width;screenwidth *= 2);
- for (screenheight = 1;screenheight < vid.height;screenheight *= 2);
// allocate textures as needed
if (!r_bloom_texture_screen)
r_bloom_texture_screen = R_LoadTexture2D(r_main_texturepool, "screen", screenwidth, screenheight, NULL, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_CLAMP | TEXF_ALWAYSPRECACHE, NULL);
renderstats.bloom_drawpixels += r_view_width * r_view_height;
}
}
- if (r_refdef.viewblend[3] >= 0.01f)
+ if (doblend)
{
// apply a color tint to the whole view
memset(&m, 0, sizeof(m));
{
for (i = 0, v = vertex, c = color;i < 8;i++, v += 4, c += 4)
{
- VectorSubtract(v, r_vieworigin, diff);
- f2 = exp(fogdensity/DotProduct(diff, diff));
+ f2 = VERTEXFOGTABLE(VectorDistance(v, r_vieworigin));
f1 = 1 - f2;
c[0] = c[0] * f1 + fogcolor[0] * f2;
c[1] = c[1] * f1 + fogcolor[1] * f2;
{
const entity_render_t *ent = (entity_render_t *)calldata1;
int i;
- float f1, f2, *c, diff[3];
+ float f1, f2, *c;
float color4f[6*4];
rmeshstate_t m;
R_Mesh_Matrix(&ent->matrix);
{
memcpy(color4f, nomodelcolor4f, sizeof(float[6*4]));
m.pointer_color = color4f;
- VectorSubtract(ent->origin, r_vieworigin, diff);
- f2 = exp(fogdensity/DotProduct(diff, diff));
+ f2 = VERTEXFOGTABLE(VectorDistance(ent->origin, r_vieworigin));
f1 = 1 - f2;
for (i = 0, c = color4f;i < 6;i++, c += 4)
{
float spritetexcoord2f[4*2] = {0, 1, 0, 0, 1, 0, 1, 1};
-void R_DrawSprite(int blendfunc1, int blendfunc2, rtexture_t *texture, int depthdisable, const vec3_t origin, const vec3_t left, const vec3_t up, float scalex1, float scalex2, float scaley1, float scaley2, float cr, float cg, float cb, float ca)
+void R_DrawSprite(int blendfunc1, int blendfunc2, rtexture_t *texture, rtexture_t *fogtexture, int depthdisable, const vec3_t origin, const vec3_t left, const vec3_t up, float scalex1, float scalex2, float scaley1, float scaley2, float cr, float cg, float cb, float ca)
{
- float diff[3];
+ float fog = 0.0f, ifog;
rmeshstate_t m;
if (fogenabled)
- {
- VectorSubtract(origin, r_vieworigin, diff);
- ca *= 1 - exp(fogdensity/DotProduct(diff,diff));
- }
+ fog = VERTEXFOGTABLE(VectorDistance(origin, r_vieworigin));
+ ifog = 1 - fog;
R_Mesh_Matrix(&r_identitymatrix);
GL_BlendFunc(blendfunc1, blendfunc2);
m.pointer_texcoord[0] = spritetexcoord2f;
m.pointer_vertex = varray_vertex3f;
R_Mesh_State(&m);
- GL_Color(cr, cg, cb, ca);
+ GL_Color(cr * ifog, cg * ifog, cb * ifog, ca);
R_Mesh_Draw(0, 4, 2, polygonelements);
+
+ if (blendfunc2 == GL_ONE_MINUS_SRC_ALPHA)
+ {
+ R_Mesh_TexBind(0, R_GetTexture(fogtexture));
+ GL_BlendFunc(blendfunc1, GL_ONE);
+ GL_Color(fogcolor[0] * fog, fogcolor[1] * fog, fogcolor[2] * fog, ca);
+ R_Mesh_Draw(0, 4, 2, polygonelements);
+ }
}
int R_Mesh_AddVertex3f(rmesh_t *mesh, const float *v)
int i;
float f;
float *v, *c, *c2;
- vec3_t diff;
if (lightmode >= 2)
{
// model lighting
{
for (i = 0, c = varray_color4f + 4 * surface->num_firstvertex;i < surface->num_vertices;i++, c += 4)
{
- const qbyte *lm = surface->lightmapinfo->samples + (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i];
+ const unsigned char *lm = surface->lightmapinfo->samples + (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i];
if (lm)
{
float scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[0]] * (1.0f / 32768.0f);
{
for (i = 0, v = (rsurface_vertex3f + 3 * surface->num_firstvertex), c = (rsurface_lightmapcolor4f + 4 * surface->num_firstvertex), c2 = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4, c2 += 4)
{
- VectorSubtract(v, modelorg, diff);
- f = 1 - exp(fogdensity/DotProduct(diff, diff));
+ f = 1 - VERTEXFOGTABLE(VectorDistance(v, modelorg));
c2[0] = c[0] * f;
c2[1] = c[1] * f;
c2[2] = c[2] * f;
{
for (i = 0, v = (rsurface_vertex3f + 3 * surface->num_firstvertex), c2 = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c2 += 4)
{
- VectorSubtract(v, modelorg, diff);
- f = 1 - exp(fogdensity/DotProduct(diff, diff));
+ f = 1 - VERTEXFOGTABLE(VectorDistance(v, modelorg));
c2[0] = f;
c2[1] = f;
c2[2] = f;
GL_Color(r, g, b, a);
}
-
static void R_DrawTextureSurfaceList(const entity_render_t *ent, texture_t *texture, int texturenumsurfaces, const msurface_t **texturesurfacelist, const vec3_t modelorg)
{
int texturesurfaceindex;
for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
{
int i;
- float diff[3];
float f, *v, *c;
surface = texturesurfacelist[texturesurfaceindex];
RSurf_SetVertexPointer(ent, texture, surface, modelorg);
R_Mesh_ColorPointer(varray_color4f);
for (i = 0, v = (rsurface_vertex3f + 3 * surface->num_firstvertex), c = (varray_color4f + 4 * surface->num_firstvertex);i < surface->num_vertices;i++, v += 3, c += 4)
{
- VectorSubtract(v, modelorg, diff);
- f = exp(fogdensity/DotProduct(diff, diff));
+ f = VERTEXFOGTABLE(VectorDistance(v, modelorg));
c[0] = layercolor[0];
c[1] = layercolor[1];
c[2] = layercolor[2];
}
}
}
+ if (r_shownormals.integer && !r_showtrispass)
+ {
+ int j, k;
+ float v[3];
+ GL_DepthTest(true);
+ GL_DepthMask(texture->currentlayers->depthmask);
+ GL_BlendFunc(texture->currentlayers->blendfunc1, texture->currentlayers->blendfunc2);
+ memset(&m, 0, sizeof(m));
+ R_Mesh_State(&m);
+ for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
+ {
+ surface = texturesurfacelist[texturesurfaceindex];
+ RSurf_SetVertexPointer(ent, texture, surface, modelorg);
+ if (!rsurface_svector3f)
+ {
+ rsurface_svector3f = varray_svector3f;
+ rsurface_tvector3f = varray_tvector3f;
+ rsurface_normal3f = varray_normal3f;
+ Mod_BuildTextureVectorsAndNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, rsurface_vertex3f, surface->groupmesh->data_texcoordtexture2f, surface->groupmesh->data_element3i + surface->num_firsttriangle * 3, rsurface_svector3f, rsurface_tvector3f, rsurface_normal3f, r_smoothnormals_areaweighting.integer);
+ }
+ GL_Color(1, 0, 0, 1);
+ qglBegin(GL_LINES);
+ for (j = 0, k = surface->num_firstvertex;j < surface->num_vertices;j++, k++)
+ {
+ VectorCopy(rsurface_vertex3f + k * 3, v);
+ qglVertex3f(v[0], v[1], v[2]);
+ VectorMA(v, 8, rsurface_svector3f + k * 3, v);
+ qglVertex3f(v[0], v[1], v[2]);
+ }
+ GL_Color(0, 0, 1, 1);
+ for (j = 0, k = surface->num_firstvertex;j < surface->num_vertices;j++, k++)
+ {
+ VectorCopy(rsurface_vertex3f + k * 3, v);
+ qglVertex3f(v[0], v[1], v[2]);
+ VectorMA(v, 8, rsurface_tvector3f + k * 3, v);
+ qglVertex3f(v[0], v[1], v[2]);
+ }
+ GL_Color(0, 1, 0, 1);
+ for (j = 0, k = surface->num_firstvertex;j < surface->num_vertices;j++, k++)
+ {
+ VectorCopy(rsurface_vertex3f + k * 3, v);
+ qglVertex3f(v[0], v[1], v[2]);
+ VectorMA(v, 8, rsurface_normal3f + k * 3, v);
+ qglVertex3f(v[0], v[1], v[2]);
+ }
+ qglEnd();
+ }
+ }
}
if (texture->textureflags & Q3TEXTUREFLAG_TWOSIDED)
qglEnable(GL_CULL_FACE);
projects / xonotic / darkplaces.git / blobdiff