2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 // r_surf.c: surface-related refresh code
25 #define MAX_LIGHTMAP_SIZE 256
27 static unsigned int intblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
28 static float floatblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
30 static qbyte templight[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*4];
32 cvar_t r_ambient = {0, "r_ambient", "0"};
33 cvar_t r_vertexsurfaces = {0, "r_vertexsurfaces", "0"};
34 cvar_t r_dlightmap = {CVAR_SAVE, "r_dlightmap", "1"};
35 cvar_t r_drawportals = {0, "r_drawportals", "0"};
36 cvar_t r_testvis = {0, "r_testvis", "0"};
37 cvar_t r_floatbuildlightmap = {0, "r_floatbuildlightmap", "0"};
38 cvar_t r_detailtextures = {CVAR_SAVE, "r_detailtextures", "1"};
39 cvar_t r_surfaceworldnode = {0, "r_surfaceworldnode", "1"};
41 static int dlightdivtable[32768];
43 static int R_IntAddDynamicLights (const matrix4x4_t *matrix, msurface_t *surf)
45 int sdtable[256], lnum, td, maxdist, maxdist2, maxdist3, i, s, t, smax, tmax, smax3, red, green, blue, lit, dist2, impacts, impactt, subtract, k;
47 float dist, impact[3], local[3];
51 smax = (surf->extents[0] >> 4) + 1;
52 tmax = (surf->extents[1] >> 4) + 1;
55 for (lnum = 0; lnum < r_numdlights; lnum++)
57 if (!(surf->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
58 continue; // not lit by this light
60 Matrix4x4_Transform(matrix, r_dlight[lnum].origin, local);
61 dist = DotProduct (local, surf->plane->normal) - surf->plane->dist;
63 // for comparisons to minimum acceptable light
64 // compensate for LIGHTOFFSET
65 maxdist = (int) r_dlight[lnum].cullradius2 + LIGHTOFFSET;
72 if (surf->plane->type < 3)
74 VectorCopy(local, impact);
75 impact[surf->plane->type] -= dist;
79 impact[0] = local[0] - surf->plane->normal[0] * dist;
80 impact[1] = local[1] - surf->plane->normal[1] * dist;
81 impact[2] = local[2] - surf->plane->normal[2] * dist;
84 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
85 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
87 s = bound(0, impacts, smax * 16) - impacts;
88 t = bound(0, impactt, tmax * 16) - impactt;
89 i = s * s + t * t + dist2;
93 // reduce calculations
94 for (s = 0, i = impacts; s < smax; s++, i -= 16)
95 sdtable[s] = i * i + dist2;
97 maxdist3 = maxdist - dist2;
99 // convert to 8.8 blocklights format
100 red = r_dlight[lnum].light[0] * (1.0f / 128.0f);
101 green = r_dlight[lnum].light[1] * (1.0f / 128.0f);
102 blue = r_dlight[lnum].light[2] * (1.0f / 128.0f);
103 subtract = (int) (r_dlight[lnum].subtract * 4194304.0f);
107 for (t = 0;t < tmax;t++, i -= 16)
110 // make sure some part of it is visible on this line
113 maxdist2 = maxdist - td;
114 for (s = 0;s < smax;s++)
116 if (sdtable[s] < maxdist2)
118 k = dlightdivtable[(sdtable[s] + td) >> 7] - subtract;
122 bl[1] += (green * k);
137 static int R_FloatAddDynamicLights (const matrix4x4_t *matrix, msurface_t *surf)
139 int lnum, s, t, smax, tmax, smax3, lit, impacts, impactt;
140 float sdtable[256], *bl, k, dist, dist2, maxdist, maxdist2, maxdist3, td1, td, red, green, blue, impact[3], local[3], subtract;
144 smax = (surf->extents[0] >> 4) + 1;
145 tmax = (surf->extents[1] >> 4) + 1;
148 for (lnum = 0; lnum < r_numdlights; lnum++)
150 if (!(surf->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
151 continue; // not lit by this light
153 Matrix4x4_Transform(matrix, r_dlight[lnum].origin, local);
154 dist = DotProduct (local, surf->plane->normal) - surf->plane->dist;
156 // for comparisons to minimum acceptable light
157 // compensate for LIGHTOFFSET
158 maxdist = (int) r_dlight[lnum].cullradius2 + LIGHTOFFSET;
161 dist2 += LIGHTOFFSET;
162 if (dist2 >= maxdist)
165 if (surf->plane->type < 3)
167 VectorCopy(local, impact);
168 impact[surf->plane->type] -= dist;
172 impact[0] = local[0] - surf->plane->normal[0] * dist;
173 impact[1] = local[1] - surf->plane->normal[1] * dist;
174 impact[2] = local[2] - surf->plane->normal[2] * dist;
177 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
178 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
180 td = bound(0, impacts, smax * 16) - impacts;
181 td1 = bound(0, impactt, tmax * 16) - impactt;
182 td = td * td + td1 * td1 + dist2;
186 // reduce calculations
187 for (s = 0, td1 = impacts; s < smax; s++, td1 -= 16.0f)
188 sdtable[s] = td1 * td1 + dist2;
190 maxdist3 = maxdist - dist2;
192 // convert to 8.8 blocklights format
193 red = r_dlight[lnum].light[0];
194 green = r_dlight[lnum].light[1];
195 blue = r_dlight[lnum].light[2];
196 subtract = r_dlight[lnum].subtract * 32768.0f;
197 bl = floatblocklights;
200 for (t = 0;t < tmax;t++, td1 -= 16.0f)
203 // make sure some part of it is visible on this line
206 maxdist2 = maxdist - td;
207 for (s = 0;s < smax;s++)
209 if (sdtable[s] < maxdist2)
211 k = (32768.0f / (sdtable[s] + td)) - subtract;
231 Combine and scale multiple lightmaps into the 8.8 format in blocklights
234 static void R_BuildLightMap (const entity_render_t *ent, msurface_t *surf)
236 if (!r_floatbuildlightmap.integer)
238 int smax, tmax, i, j, size, size3, shift, maps, stride, l;
239 unsigned int *bl, scale;
240 qbyte *lightmap, *out, *stain;
242 // update cached lighting info
243 surf->cached_dlight = 0;
245 smax = (surf->extents[0]>>4)+1;
246 tmax = (surf->extents[1]>>4)+1;
249 lightmap = surf->samples;
251 // set to full bright if no light data
253 if ((ent->effects & EF_FULLBRIGHT) || !ent->model->lightdata)
255 for (i = 0;i < size3;i++)
261 j = r_ambient.value * 512.0f; // would be 128.0f logically, but using 512.0f to match winquake style
264 for (i = 0;i < size3;i++)
268 memset(bl, 0, size*3*sizeof(unsigned int));
270 if (surf->dlightframe == r_framecount && r_dlightmap.integer)
272 surf->cached_dlight = R_IntAddDynamicLights(&ent->inversematrix, surf);
273 if (surf->cached_dlight)
277 // add all the lightmaps
281 for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++, lightmap += size3)
282 for (scale = d_lightstylevalue[surf->styles[maps]], i = 0;i < size3;i++)
283 bl[i] += lightmap[i] * scale;
287 stain = surf->stainsamples;
290 // deal with lightmap brightness scale
291 shift = 7 + r_lightmapscalebit + 8;
292 if (ent->model->lightmaprgba)
294 stride = (surf->lightmaptexturestride - smax) * 4;
295 for (i = 0;i < tmax;i++, out += stride)
297 for (j = 0;j < smax;j++)
299 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
300 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
301 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
308 stride = (surf->lightmaptexturestride - smax) * 3;
309 for (i = 0;i < tmax;i++, out += stride)
311 for (j = 0;j < smax;j++)
313 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
314 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
315 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
320 R_UpdateTexture(surf->lightmaptexture, templight);
324 int smax, tmax, i, j, size, size3, maps, stride, l;
326 qbyte *lightmap, *out, *stain;
328 // update cached lighting info
329 surf->cached_dlight = 0;
331 smax = (surf->extents[0]>>4)+1;
332 tmax = (surf->extents[1]>>4)+1;
335 lightmap = surf->samples;
337 // set to full bright if no light data
338 bl = floatblocklights;
339 if ((ent->effects & EF_FULLBRIGHT) || !ent->model->lightdata)
342 j = r_ambient.value * 512.0f; // would be 128.0f logically, but using 512.0f to match winquake style
347 for (i = 0;i < size3;i++)
351 memset(bl, 0, size*3*sizeof(float));
353 if (surf->dlightframe == r_framecount && r_dlightmap.integer)
355 surf->cached_dlight = R_FloatAddDynamicLights(&ent->inversematrix, surf);
356 if (surf->cached_dlight)
360 // add all the lightmaps
363 bl = floatblocklights;
364 for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++, lightmap += size3)
365 for (scale = d_lightstylevalue[surf->styles[maps]], i = 0;i < size3;i++)
366 bl[i] += lightmap[i] * scale;
369 stain = surf->stainsamples;
370 bl = floatblocklights;
372 // deal with lightmap brightness scale
373 scale = 1.0f / (1 << (7 + r_lightmapscalebit + 8));
374 if (ent->model->lightmaprgba)
376 stride = (surf->lightmaptexturestride - smax) * 4;
377 for (i = 0;i < tmax;i++, out += stride)
379 for (j = 0;j < smax;j++)
381 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
382 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
383 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
390 stride = (surf->lightmaptexturestride - smax) * 3;
391 for (i = 0;i < tmax;i++, out += stride)
393 for (j = 0;j < smax;j++)
395 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
396 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
397 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
402 R_UpdateTexture(surf->lightmaptexture, templight);
406 void R_StainNode (mnode_t *node, model_t *model, const vec3_t origin, float radius, const float fcolor[8])
408 float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
409 msurface_t *surf, *endsurf;
410 int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
414 maxdist = radius * radius;
415 invradius = 1.0f / radius;
418 if (node->contents < 0)
420 ndist = PlaneDiff(origin, node->plane);
423 node = node->children[0];
428 node = node->children[1];
432 dist2 = ndist * ndist;
433 maxdist3 = maxdist - dist2;
435 if (node->plane->type < 3)
437 VectorCopy(origin, impact);
438 impact[node->plane->type] -= ndist;
442 impact[0] = origin[0] - node->plane->normal[0] * ndist;
443 impact[1] = origin[1] - node->plane->normal[1] * ndist;
444 impact[2] = origin[2] - node->plane->normal[2] * ndist;
447 for (surf = model->surfaces + node->firstsurface, endsurf = surf + node->numsurfaces;surf < endsurf;surf++)
449 if (surf->stainsamples)
451 smax = (surf->extents[0] >> 4) + 1;
452 tmax = (surf->extents[1] >> 4) + 1;
454 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
455 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
457 s = bound(0, impacts, smax * 16) - impacts;
458 t = bound(0, impactt, tmax * 16) - impactt;
459 i = s * s + t * t + dist2;
463 // reduce calculations
464 for (s = 0, i = impacts; s < smax; s++, i -= 16)
465 sdtable[s] = i * i + dist2;
467 bl = surf->stainsamples;
472 for (t = 0;t < tmax;t++, i -= 16)
475 // make sure some part of it is visible on this line
478 maxdist2 = maxdist - td;
479 for (s = 0;s < smax;s++)
481 if (sdtable[s] < maxdist2)
483 ratio = lhrandom(0.0f, 1.0f);
484 a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
485 if (a >= (1.0f / 64.0f))
489 bl[0] = (qbyte) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
490 bl[1] = (qbyte) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
491 bl[2] = (qbyte) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
501 // force lightmap upload
503 surf->cached_dlight = true;
507 if (node->children[0]->contents >= 0)
509 if (node->children[1]->contents >= 0)
511 R_StainNode(node->children[0], model, origin, radius, fcolor);
512 node = node->children[1];
517 node = node->children[0];
521 else if (node->children[1]->contents >= 0)
523 node = node->children[1];
528 void R_Stain (const vec3_t origin, float radius, int cr1, int cg1, int cb1, int ca1, int cr2, int cg2, int cb2, int ca2)
532 entity_render_t *ent;
535 if (cl.worldmodel == NULL)
540 fcolor[3] = ca1 * (1.0f / 64.0f);
541 fcolor[4] = cr2 - cr1;
542 fcolor[5] = cg2 - cg1;
543 fcolor[6] = cb2 - cb1;
544 fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
546 R_StainNode(cl.worldmodel->nodes + cl.worldmodel->hulls[0].firstclipnode, cl.worldmodel, origin, radius, fcolor);
548 // look for embedded bmodels
549 for (n = 0;n < cl_num_brushmodel_entities;n++)
551 ent = cl_brushmodel_entities[n];
553 if (model && model->name[0] == '*')
555 Mod_CheckLoaded(model);
556 if (model->type == mod_brush)
558 Matrix4x4_Transform(&ent->inversematrix, origin, org);
559 R_StainNode(model->nodes + model->hulls[0].firstclipnode, model, org, radius, fcolor);
567 =============================================================
571 =============================================================
574 static void RSurf_AddLightmapToVertexColors_Color4f(const int *lightmapoffsets, float *c, int numverts, const qbyte *samples, int size3, const qbyte *styles)
579 if (styles[0] != 255)
581 for (i = 0;i < numverts;i++, c += 4)
583 lm = samples + lightmapoffsets[i];
584 scale = d_lightstylevalue[styles[0]] * (1.0f / 32768.0f);
585 VectorMA(c, scale, lm, c);
586 if (styles[1] != 255)
589 scale = d_lightstylevalue[styles[1]] * (1.0f / 32768.0f);
590 VectorMA(c, scale, lm, c);
591 if (styles[2] != 255)
594 scale = d_lightstylevalue[styles[2]] * (1.0f / 32768.0f);
595 VectorMA(c, scale, lm, c);
596 if (styles[3] != 255)
599 scale = d_lightstylevalue[styles[3]] * (1.0f / 32768.0f);
600 VectorMA(c, scale, lm, c);
608 static void RSurf_FogColors_Vertex3f_Color4f(const float *v, float *c, float colorscale, int numverts, const float *modelorg)
614 for (i = 0;i < numverts;i++, v += 3, c += 4)
616 VectorSubtract(v, modelorg, diff);
617 f = colorscale * (1 - exp(fogdensity/DotProduct(diff, diff)));
618 VectorScale(c, f, c);
621 else if (colorscale != 1)
622 for (i = 0;i < numverts;i++, c += 4)
623 VectorScale(c, colorscale, c);
626 static void RSurf_FoggedColors_Vertex3f_Color4f(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
635 for (i = 0;i < numverts;i++, v += 3, c += 4)
637 VectorSubtract(v, modelorg, diff);
638 f = 1 - exp(fogdensity/DotProduct(diff, diff));
647 for (i = 0;i < numverts;i++, c += 4)
657 static void RSurf_FogPassColors_Vertex3f_Color4f(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
664 for (i = 0;i < numverts;i++, v += 3, c += 4)
666 VectorSubtract(v, modelorg, diff);
667 f = exp(fogdensity/DotProduct(diff, diff));
675 static int RSurf_LightSeparate_Vertex3f_Color4f(const matrix4x4_t *matrix, const int *dlightbits, int numverts, const float *vert, float *color, float scale)
680 int i, l, lit = false;
683 for (l = 0;l < r_numdlights;l++)
685 if (dlightbits[l >> 5] & (1 << (l & 31)))
688 Matrix4x4_Transform(matrix, rd->origin, lightorigin);
689 for (i = 0, v = vert, c = color;i < numverts;i++, v += 3, c += 4)
691 f = VectorDistance2(v, lightorigin) + LIGHTOFFSET;
692 if (f < rd->cullradius2)
694 f = ((1.0f / f) - rd->subtract) * scale;
695 VectorMA(c, f, rd->light, c);
704 // note: this untransforms lights to do the checking
705 static int RSurf_LightCheck(const matrix4x4_t *matrix, const int *dlightbits, const surfmesh_t *mesh)
711 for (l = 0;l < r_numdlights;l++)
713 if (dlightbits[l >> 5] & (1 << (l & 31)))
716 Matrix4x4_Transform(matrix, rd->origin, lightorigin);
717 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
718 if (VectorDistance2(v, lightorigin) < rd->cullradius2)
725 static void RSurfShader_Sky(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
727 const msurface_t *surf;
728 const surfmesh_t *mesh;
731 // LordHavoc: HalfLife maps have freaky skypolys...
732 if (ent->model->ishlbsp)
737 skyrendernow = false;
742 R_Mesh_Matrix(&ent->matrix);
744 // draw depth-only polys
745 memset(&m, 0, sizeof(m));
748 qglColorMask(0,0,0,0);
749 // just to make sure that braindead drivers don't draw anything
750 // despite that colormask...
751 m.blendfunc1 = GL_ZERO;
752 m.blendfunc2 = GL_ONE;
757 m.blendfunc1 = GL_ONE;
758 m.blendfunc2 = GL_ZERO;
762 while((surf = *surfchain++) != NULL)
764 if (surf->visframe == r_framecount)
766 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
768 GL_Color(fogcolor[0] * r_colorscale, fogcolor[1] * r_colorscale, fogcolor[2] * r_colorscale, 1);
769 R_Mesh_GetSpace(mesh->numverts);
770 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
771 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
775 qglColorMask(1,1,1,1);
778 static void RSurfShader_Water_Callback(const void *calldata1, int calldata2)
781 const entity_render_t *ent = calldata1;
782 const msurface_t *surf = ent->model->surfaces + calldata2;
783 float f, colorscale, scroll[2], *v, *tc;
784 const surfmesh_t *mesh;
789 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
791 R_Mesh_Matrix(&ent->matrix);
793 memset(&m, 0, sizeof(m));
794 texture = surf->texinfo->texture->currentframe;
795 alpha = texture->currentalpha;
796 if (texture->rendertype == SURFRENDER_ADD)
798 m.blendfunc1 = GL_SRC_ALPHA;
799 m.blendfunc2 = GL_ONE;
801 else if (texture->rendertype == SURFRENDER_ALPHA)
803 m.blendfunc1 = GL_SRC_ALPHA;
804 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
808 m.blendfunc1 = GL_ONE;
809 m.blendfunc2 = GL_ZERO;
811 m.tex[0] = R_GetTexture(texture->skin.base);
812 colorscale = r_colorscale;
813 if (gl_combine.integer)
815 m.texrgbscale[0] = 4;
820 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
822 R_Mesh_GetSpace(mesh->numverts);
823 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
824 scroll[0] = sin(cl.time) * 0.125f;
825 scroll[1] = sin(cl.time * 0.8f) * 0.125f;
826 for (i = 0, v = varray_texcoord2f[0], tc = mesh->texcoordtexture2f;i < mesh->numverts;i++, v += 2, tc += 2)
828 v[0] = tc[0] + scroll[0];
829 v[1] = tc[1] + scroll[1];
831 f = surf->flags & SURF_DRAWFULLBRIGHT ? 1.0f : ((surf->flags & SURF_LIGHTMAP) ? 0 : 0.5f);
832 R_FillColors(varray_color4f, mesh->numverts, f, f, f, alpha);
833 if (!(surf->flags & SURF_DRAWFULLBRIGHT || ent->effects & EF_FULLBRIGHT))
835 if (surf->dlightframe == r_framecount)
836 RSurf_LightSeparate_Vertex3f_Color4f(&ent->inversematrix, surf->dlightbits, mesh->numverts, mesh->vertex3f, varray_color4f, 1);
837 if (surf->flags & SURF_LIGHTMAP)
838 RSurf_AddLightmapToVertexColors_Color4f(mesh->lightmapoffsets, varray_color4f, mesh->numverts, surf->samples, ((surf->extents[0]>>4)+1)*((surf->extents[1]>>4)+1)*3, surf->styles);
840 RSurf_FogColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, colorscale, mesh->numverts, modelorg);
841 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
846 memset(&m, 0, sizeof(m));
847 m.blendfunc1 = GL_SRC_ALPHA;
848 m.blendfunc2 = GL_ONE;
849 m.tex[0] = R_GetTexture(texture->skin.fog);
851 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
853 R_Mesh_GetSpace(mesh->numverts);
854 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
856 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
857 RSurf_FogPassColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], alpha, r_colorscale, mesh->numverts, modelorg);
858 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
863 static void RSurfShader_Water(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
865 const msurface_t *surf;
868 if (texture->rendertype != SURFRENDER_OPAQUE)
870 for (chain = surfchain;(surf = *chain) != NULL;chain++)
872 if (surf->visframe == r_framecount)
874 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
875 R_MeshQueue_AddTransparent(center, RSurfShader_Water_Callback, ent, surf - ent->model->surfaces);
880 for (chain = surfchain;(surf = *chain) != NULL;chain++)
881 if (surf->visframe == r_framecount)
882 RSurfShader_Water_Callback(ent, surf - ent->model->surfaces);
885 static void RSurfShader_Wall_Pass_BaseVertex(const entity_render_t *ent, const msurface_t *surf, const texture_t *texture, int rendertype, float currentalpha)
887 float base, colorscale;
888 const surfmesh_t *mesh;
891 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
892 memset(&m, 0, sizeof(m));
893 if (rendertype == SURFRENDER_ADD)
895 m.blendfunc1 = GL_SRC_ALPHA;
896 m.blendfunc2 = GL_ONE;
898 else if (rendertype == SURFRENDER_ALPHA)
900 m.blendfunc1 = GL_SRC_ALPHA;
901 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
905 m.blendfunc1 = GL_ONE;
906 m.blendfunc2 = GL_ZERO;
908 m.tex[0] = R_GetTexture(texture->skin.base);
909 colorscale = r_colorscale;
910 if (gl_combine.integer)
912 m.texrgbscale[0] = 4;
915 base = ent->effects & EF_FULLBRIGHT ? 2.0f : r_ambient.value * (1.0f / 64.0f);
918 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
920 R_Mesh_GetSpace(mesh->numverts);
921 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
922 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
923 R_FillColors(varray_color4f, mesh->numverts, base, base, base, currentalpha);
924 if (!(ent->effects & EF_FULLBRIGHT))
926 if (surf->dlightframe == r_framecount)
927 RSurf_LightSeparate_Vertex3f_Color4f(&ent->inversematrix, surf->dlightbits, mesh->numverts, mesh->vertex3f, varray_color4f, 1);
928 if (surf->flags & SURF_LIGHTMAP)
929 RSurf_AddLightmapToVertexColors_Color4f(mesh->lightmapoffsets, varray_color4f, mesh->numverts, surf->samples, ((surf->extents[0]>>4)+1)*((surf->extents[1]>>4)+1)*3, surf->styles);
931 RSurf_FogColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, colorscale, mesh->numverts, modelorg);
932 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
936 static void RSurfShader_Wall_Pass_Glow(const entity_render_t *ent, const msurface_t *surf, const texture_t *texture, int rendertype, float currentalpha)
938 const surfmesh_t *mesh;
941 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
942 memset(&m, 0, sizeof(m));
943 m.blendfunc1 = GL_SRC_ALPHA;
944 m.blendfunc2 = GL_ONE;
945 m.tex[0] = R_GetTexture(texture->skin.glow);
948 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
950 R_Mesh_GetSpace(mesh->numverts);
951 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
952 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
953 RSurf_FoggedColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, 1, 1, 1, currentalpha, r_colorscale, mesh->numverts, modelorg);
954 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
958 static void RSurfShader_Wall_Pass_Fog(const entity_render_t *ent, const msurface_t *surf, const texture_t *texture, int rendertype, float currentalpha)
960 const surfmesh_t *mesh;
963 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
964 memset(&m, 0, sizeof(m));
965 m.blendfunc1 = GL_SRC_ALPHA;
966 m.blendfunc2 = GL_ONE;
967 m.tex[0] = R_GetTexture(texture->skin.fog);
970 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
972 R_Mesh_GetSpace(mesh->numverts);
973 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
975 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
976 RSurf_FogPassColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], currentalpha, r_colorscale, mesh->numverts, modelorg);
977 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
981 static void RSurfShader_OpaqueWall_Pass_BaseTripleTexCombine(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
983 const msurface_t *surf;
984 const surfmesh_t *mesh;
986 int lightmaptexturenum;
989 rcachearrayrequest_t request;
990 memset(&request, 0, sizeof(request));
992 memset(&m, 0, sizeof(m));
993 m.blendfunc1 = GL_ONE;
994 m.blendfunc2 = GL_ZERO;
995 m.tex[0] = R_GetTexture(texture->skin.base);
996 m.tex[1] = R_GetTexture((**surfchain).lightmaptexture);
997 m.tex[2] = R_GetTexture(texture->skin.detail);
998 m.texrgbscale[0] = 1;
999 m.texrgbscale[1] = 4;
1000 m.texrgbscale[2] = 2;
1002 cl = (float) (1 << r_lightmapscalebit) * r_colorscale;
1003 GL_Color(cl, cl, cl, 1);
1004 if (!gl_mesh_copyarrays.integer)
1007 while((surf = *surfchain++) != NULL)
1009 if (surf->visframe == r_framecount)
1011 lightmaptexturenum = R_GetTexture(surf->lightmaptexture);
1012 if (m.tex[1] != lightmaptexturenum)
1014 m.tex[1] = lightmaptexturenum;
1015 if (gl_mesh_copyarrays.integer)
1018 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1020 if (!gl_mesh_copyarrays.integer)
1022 m.pointervertexcount = mesh->numverts;
1023 m.pointer_vertex = mesh->vertex3f;
1024 m.pointer_texcoord[0] = mesh->texcoordtexture2f;
1025 m.pointer_texcoord[1] = mesh->texcoordlightmap2f;
1026 m.pointer_texcoord[2] = mesh->texcoorddetail2f;
1028 request.id_pointer1 = ent->model;
1029 request.id_pointer2 = mesh->texcoorddetail2f;
1030 request.data_size = sizeof(float[2]) * mesh->numverts;
1031 if (R_Mesh_CacheArray(&request))
1032 memcpy(request.data, mesh->texcoorddetail2f, request.data_size);
1033 m.pointer_texcoord[2] = request.data;
1039 R_Mesh_GetSpace(mesh->numverts);
1040 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
1041 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
1042 R_Mesh_CopyTexCoord2f(1, mesh->texcoordlightmap2f, mesh->numverts);
1043 R_Mesh_CopyTexCoord2f(2, mesh->texcoorddetail2f, mesh->numverts);
1045 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1051 static void RSurfShader_OpaqueWall_Pass_BaseDoubleTex(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1053 const msurface_t *surf;
1054 const surfmesh_t *mesh;
1056 int lightmaptexturenum;
1057 memset(&m, 0, sizeof(m));
1058 m.blendfunc1 = GL_ONE;
1059 m.blendfunc2 = GL_ZERO;
1060 m.tex[0] = R_GetTexture(texture->skin.base);
1061 m.tex[1] = R_GetTexture((**surfchain).lightmaptexture);
1062 if (gl_combine.integer)
1063 m.texrgbscale[1] = 4;
1065 GL_Color(r_colorscale, r_colorscale, r_colorscale, 1);
1066 while((surf = *surfchain++) != NULL)
1068 if (surf->visframe == r_framecount)
1070 lightmaptexturenum = R_GetTexture(surf->lightmaptexture);
1071 if (m.tex[1] != lightmaptexturenum)
1073 m.tex[1] = lightmaptexturenum;
1076 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1078 R_Mesh_GetSpace(mesh->numverts);
1079 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
1080 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
1081 R_Mesh_CopyTexCoord2f(1, mesh->texcoordlightmap2f, mesh->numverts);
1082 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1088 static void RSurfShader_OpaqueWall_Pass_BaseTexture(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1090 const msurface_t *surf;
1091 const surfmesh_t *mesh;
1093 memset(&m, 0, sizeof(m));
1094 m.blendfunc1 = GL_ONE;
1095 m.blendfunc2 = GL_ZERO;
1096 m.tex[0] = R_GetTexture(texture->skin.base);
1098 GL_Color(1, 1, 1, 1);
1099 while((surf = *surfchain++) != NULL)
1101 if (surf->visframe == r_framecount)
1103 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1105 R_Mesh_GetSpace(mesh->numverts);
1106 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
1107 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
1108 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1114 static void RSurfShader_OpaqueWall_Pass_BaseLightmap(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1116 const msurface_t *surf;
1117 const surfmesh_t *mesh;
1119 int lightmaptexturenum;
1120 memset(&m, 0, sizeof(m));
1121 m.blendfunc1 = GL_ZERO;
1122 m.blendfunc2 = GL_SRC_COLOR;
1123 m.tex[0] = R_GetTexture((**surfchain).lightmaptexture);
1124 if (gl_combine.integer)
1125 m.texrgbscale[0] = 4;
1127 GL_Color(r_colorscale, r_colorscale, r_colorscale, 1);
1128 while((surf = *surfchain++) != NULL)
1130 if (surf->visframe == r_framecount)
1132 lightmaptexturenum = R_GetTexture(surf->lightmaptexture);
1133 if (m.tex[0] != lightmaptexturenum)
1135 m.tex[0] = lightmaptexturenum;
1138 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1140 R_Mesh_GetSpace(mesh->numverts);
1141 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
1142 R_Mesh_CopyTexCoord2f(0, mesh->texcoordlightmap2f, mesh->numverts);
1143 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1149 static void RSurfShader_OpaqueWall_Pass_Light(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1151 const msurface_t *surf;
1152 const surfmesh_t *mesh;
1156 memset(&m, 0, sizeof(m));
1157 m.blendfunc1 = GL_SRC_ALPHA;
1158 m.blendfunc2 = GL_ONE;
1159 m.tex[0] = R_GetTexture(texture->skin.base);
1160 colorscale = r_colorscale;
1161 if (gl_combine.integer)
1163 m.texrgbscale[0] = 4;
1164 colorscale *= 0.25f;
1168 while((surf = *surfchain++) != NULL)
1170 if (surf->visframe == r_framecount && surf->dlightframe == r_framecount)
1172 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1174 if (RSurf_LightCheck(&ent->inversematrix, surf->dlightbits, mesh))
1176 R_Mesh_GetSpace(mesh->numverts);
1177 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
1178 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
1179 R_FillColors(varray_color4f, mesh->numverts, 0, 0, 0, 1);
1180 RSurf_LightSeparate_Vertex3f_Color4f(&ent->inversematrix, surf->dlightbits, mesh->numverts, mesh->vertex3f, varray_color4f, colorscale);
1181 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1188 static void RSurfShader_OpaqueWall_Pass_Fog(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1190 const msurface_t *surf;
1191 const surfmesh_t *mesh;
1194 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1195 memset(&m, 0, sizeof(m));
1196 m.blendfunc1 = GL_SRC_ALPHA;
1197 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1200 while((surf = *surfchain++) != NULL)
1202 if (surf->visframe == r_framecount)
1204 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1206 R_Mesh_GetSpace(mesh->numverts);
1207 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
1209 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
1210 RSurf_FogPassColors_Vertex3f_Color4f(mesh->vertex3f, varray_color4f, fogcolor[0], fogcolor[1], fogcolor[2], 1, r_colorscale, mesh->numverts, modelorg);
1211 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1217 static void RSurfShader_OpaqueWall_Pass_BaseDetail(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1219 const msurface_t *surf;
1220 const surfmesh_t *mesh;
1222 memset(&m, 0, sizeof(m));
1223 m.blendfunc1 = GL_DST_COLOR;
1224 m.blendfunc2 = GL_SRC_COLOR;
1225 m.tex[0] = R_GetTexture(texture->skin.detail);
1227 GL_Color(1, 1, 1, 1);
1228 while((surf = *surfchain++) != NULL)
1230 if (surf->visframe == r_framecount)
1232 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1234 R_Mesh_GetSpace(mesh->numverts);
1235 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
1236 R_Mesh_CopyTexCoord2f(0, mesh->texcoorddetail2f, mesh->numverts);
1237 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1243 static void RSurfShader_OpaqueWall_Pass_Glow(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1245 const msurface_t *surf;
1246 const surfmesh_t *mesh;
1248 memset(&m, 0, sizeof(m));
1249 m.blendfunc1 = GL_SRC_ALPHA;
1250 m.blendfunc2 = GL_ONE;
1251 m.tex[0] = R_GetTexture(texture->skin.glow);
1253 GL_Color(r_colorscale, r_colorscale, r_colorscale, 1);
1254 while((surf = *surfchain++) != NULL)
1256 if (surf->visframe == r_framecount)
1258 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1260 R_Mesh_GetSpace(mesh->numverts);
1261 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
1262 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
1263 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1269 static void RSurfShader_OpaqueWall_Pass_OpaqueGlow(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1271 const msurface_t *surf;
1272 const surfmesh_t *mesh;
1274 memset(&m, 0, sizeof(m));
1275 m.blendfunc1 = GL_SRC_ALPHA;
1276 m.blendfunc2 = GL_ZERO;
1277 m.tex[0] = R_GetTexture(texture->skin.glow);
1280 GL_Color(r_colorscale, r_colorscale, r_colorscale, 1);
1282 GL_Color(0, 0, 0, 1);
1283 while((surf = *surfchain++) != NULL)
1285 if (surf->visframe == r_framecount)
1287 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1289 R_Mesh_GetSpace(mesh->numverts);
1290 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
1291 R_Mesh_CopyTexCoord2f(0, mesh->texcoordtexture2f, mesh->numverts);
1292 R_Mesh_Draw(mesh->numverts, mesh->numtriangles, mesh->element3i);
1298 static void RSurfShader_Wall_Vertex_Callback(const void *calldata1, int calldata2)
1300 const entity_render_t *ent = calldata1;
1301 const msurface_t *surf = ent->model->surfaces + calldata2;
1305 R_Mesh_Matrix(&ent->matrix);
1307 texture = surf->texinfo->texture;
1308 if (texture->animated)
1309 texture = texture->anim_frames[ent->frame != 0][(texture->anim_total[ent->frame != 0] >= 2) ? ((int) (cl.time * 5.0f) % texture->anim_total[ent->frame != 0]) : 0];
1311 currentalpha = ent->alpha;
1312 if (texture->flags & SURF_WATERALPHA)
1313 currentalpha *= r_wateralpha.value;
1314 if (ent->effects & EF_ADDITIVE)
1315 rendertype = SURFRENDER_ADD;
1316 else if (currentalpha < 1 || texture->skin.fog != NULL)
1317 rendertype = SURFRENDER_ALPHA;
1319 rendertype = SURFRENDER_OPAQUE;
1321 RSurfShader_Wall_Pass_BaseVertex(ent, surf, texture, rendertype, currentalpha);
1322 if (texture->skin.glow)
1323 RSurfShader_Wall_Pass_Glow(ent, surf, texture, rendertype, currentalpha);
1325 RSurfShader_Wall_Pass_Fog(ent, surf, texture, rendertype, currentalpha);
1328 static void RSurfShader_Wall_Lightmap(const entity_render_t *ent, const texture_t *texture, msurface_t **surfchain)
1330 const msurface_t *surf;
1333 if (texture->rendertype != SURFRENDER_OPAQUE)
1335 // transparent vertex shaded from lightmap
1336 for (chain = surfchain;(surf = *chain) != NULL;chain++)
1338 if (surf->visframe == r_framecount)
1340 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1341 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1345 else if (r_shadow_realtime_world.integer)
1347 // opaque base lighting
1348 RSurfShader_OpaqueWall_Pass_OpaqueGlow(ent, texture, surfchain);
1350 RSurfShader_OpaqueWall_Pass_Fog(ent, texture, surfchain);
1352 else if (r_vertexsurfaces.integer)
1354 // opaque vertex shaded from lightmap
1355 for (chain = surfchain;(surf = *chain) != NULL;chain++)
1356 if (surf->visframe == r_framecount)
1357 RSurfShader_Wall_Pass_BaseVertex(ent, surf, texture, texture->rendertype, texture->currentalpha);
1358 if (texture->skin.glow)
1359 for (chain = surfchain;(surf = *chain) != NULL;chain++)
1360 if (surf->visframe == r_framecount)
1361 RSurfShader_Wall_Pass_Glow(ent, surf, texture, texture->rendertype, texture->currentalpha);
1363 for (chain = surfchain;(surf = *chain) != NULL;chain++)
1364 if (surf->visframe == r_framecount)
1365 RSurfShader_Wall_Pass_Fog(ent, surf, texture, texture->rendertype, texture->currentalpha);
1369 // opaque lightmapped
1370 if (r_textureunits.integer >= 2)
1372 if (r_textureunits.integer >= 3 && gl_combine.integer && r_detailtextures.integer)
1373 RSurfShader_OpaqueWall_Pass_BaseTripleTexCombine(ent, texture, surfchain);
1376 RSurfShader_OpaqueWall_Pass_BaseDoubleTex(ent, texture, surfchain);
1377 if (r_detailtextures.integer)
1378 RSurfShader_OpaqueWall_Pass_BaseDetail(ent, texture, surfchain);
1383 RSurfShader_OpaqueWall_Pass_BaseTexture(ent, texture, surfchain);
1384 RSurfShader_OpaqueWall_Pass_BaseLightmap(ent, texture, surfchain);
1385 if (r_detailtextures.integer)
1386 RSurfShader_OpaqueWall_Pass_BaseDetail(ent, texture, surfchain);
1388 if (!r_dlightmap.integer && !(ent->effects & EF_FULLBRIGHT))
1389 RSurfShader_OpaqueWall_Pass_Light(ent, texture, surfchain);
1390 if (texture->skin.glow)
1391 RSurfShader_OpaqueWall_Pass_Glow(ent, texture, surfchain);
1393 RSurfShader_OpaqueWall_Pass_Fog(ent, texture, surfchain);
1397 Cshader_t Cshader_wall_lightmap = {{NULL, RSurfShader_Wall_Lightmap}, SHADERFLAGS_NEEDLIGHTMAP};
1398 Cshader_t Cshader_water = {{NULL, RSurfShader_Water}, 0};
1399 Cshader_t Cshader_sky = {{RSurfShader_Sky, NULL}, 0};
1401 int Cshader_count = 3;
1402 Cshader_t *Cshaders[3] =
1404 &Cshader_wall_lightmap,
1409 void R_UpdateTextureInfo(entity_render_t *ent)
1411 int i, texframe, alttextures;
1417 alttextures = ent->frame != 0;
1418 texframe = (int)(cl.time * 5.0f);
1419 for (i = 0;i < ent->model->numtextures;i++)
1421 t = ent->model->textures + i;
1422 t->currentalpha = ent->alpha;
1423 if (t->flags & SURF_WATERALPHA)
1424 t->currentalpha *= r_wateralpha.value;
1425 if (ent->effects & EF_ADDITIVE)
1426 t->rendertype = SURFRENDER_ADD;
1427 else if (t->currentalpha < 1 || t->skin.fog != NULL)
1428 t->rendertype = SURFRENDER_ALPHA;
1430 t->rendertype = SURFRENDER_OPAQUE;
1431 // we don't need to set currentframe if t->animated is false because
1432 // it was already set up by the texture loader for non-animating
1434 t->currentframe = t->anim_frames[alttextures][(t->anim_total[alttextures] >= 2) ? (texframe % t->anim_total[alttextures]) : 0];
1438 void R_PrepareSurfaces(entity_render_t *ent)
1440 int i, numsurfaces, *surfacevisframes;
1442 msurface_t *surf, *surfaces, **surfchain;
1449 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1450 numsurfaces = model->nummodelsurfaces;
1451 surfaces = model->surfaces + model->firstmodelsurface;
1452 surfacevisframes = model->surfacevisframes + model->firstmodelsurface;
1454 R_UpdateTextureInfo(ent);
1456 if (r_dynamic.integer && !r_shadow_realtime_dlight.integer)
1459 if (model->light_ambient != r_ambient.value || model->light_scalebit != r_lightmapscalebit)
1461 model->light_ambient = r_ambient.value;
1462 model->light_scalebit = r_lightmapscalebit;
1463 for (i = 0;i < model->nummodelsurfaces;i++)
1464 model->surfaces[i + model->firstmodelsurface].cached_dlight = true;
1468 for (i = 0;i < model->light_styles;i++)
1470 if (model->light_stylevalue[i] != d_lightstylevalue[model->light_style[i]])
1472 model->light_stylevalue[i] = d_lightstylevalue[model->light_style[i]];
1473 for (surfchain = model->light_styleupdatechains[i];*surfchain;surfchain++)
1474 (**surfchain).cached_dlight = true;
1479 for (i = 0, surf = surfaces;i < numsurfaces;i++, surf++)
1481 if (surfacevisframes[i] == r_framecount)
1483 #if !WORLDNODECULLBACKFACES
1484 // mark any backface surfaces as not visible
1485 if (PlaneDist(modelorg, surf->plane) < surf->plane->dist)
1487 if (!(surf->flags & SURF_PLANEBACK))
1488 surfacevisframes[i] = -1;
1492 if ((surf->flags & SURF_PLANEBACK))
1493 surfacevisframes[i] = -1;
1495 if (surfacevisframes[i] == r_framecount)
1499 surf->visframe = r_framecount;
1500 if (surf->cached_dlight && surf->lightmaptexture != NULL && !r_vertexsurfaces.integer)
1501 R_BuildLightMap(ent, surf);
1507 void R_DrawSurfaces(entity_render_t *ent, int type, msurface_t ***chains)
1511 if (ent->model == NULL)
1513 R_Mesh_Matrix(&ent->matrix);
1514 for (i = 0, t = ent->model->textures;i < ent->model->numtextures;i++, t++)
1515 if (t->shader->shaderfunc[type] && t->currentframe && chains[i] != NULL)
1516 t->shader->shaderfunc[type](ent, t->currentframe, chains[i]);
1519 static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
1524 const entity_render_t *ent = calldata1;
1525 const mportal_t *portal = ent->model->portals + calldata2;
1526 memset(&m, 0, sizeof(m));
1527 m.blendfunc1 = GL_SRC_ALPHA;
1528 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1529 R_Mesh_Matrix(&ent->matrix);
1531 R_Mesh_GetSpace(portal->numpoints);
1532 i = portal - ent->model->portals;
1533 GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f) * r_colorscale,
1534 ((i & 0x0038) >> 3) * (1.0f / 7.0f) * r_colorscale,
1535 ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * r_colorscale,
1537 if (PlaneDiff(r_origin, (&portal->plane)) > 0)
1539 for (i = portal->numpoints - 1, v = varray_vertex3f;i >= 0;i--, v += 3)
1540 VectorCopy(portal->points[i].position, v);
1543 for (i = 0, v = varray_vertex3f;i < portal->numpoints;i++, v += 3)
1544 VectorCopy(portal->points[i].position, v);
1545 R_Mesh_Draw(portal->numpoints, portal->numpoints - 2, polygonelements);
1548 static void R_DrawPortals(entity_render_t *ent)
1551 mportal_t *portal, *endportal;
1552 float temp[3], center[3], f;
1553 if (ent->model == NULL)
1555 for (portal = ent->model->portals, endportal = portal + ent->model->numportals;portal < endportal;portal++)
1557 if ((portal->here->pvsframe == ent->model->pvsframecount || portal->past->pvsframe == ent->model->pvsframecount) && portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
1560 for (i = 0;i < portal->numpoints;i++)
1561 VectorAdd(temp, portal->points[i].position, temp);
1562 f = ixtable[portal->numpoints];
1563 VectorScale(temp, f, temp);
1564 Matrix4x4_Transform(&ent->matrix, temp, center);
1565 R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, ent, portal - ent->model->portals);
1570 void R_PrepareBrushModel(entity_render_t *ent)
1572 int i, numsurfaces, *surfacevisframes, *surfacepvsframes;
1575 #if WORLDNODECULLBACKFACES
1579 // because bmodels can be reused, we have to decide which things to render
1580 // from scratch every time
1584 #if WORLDNODECULLBACKFACES
1585 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1587 numsurfaces = model->nummodelsurfaces;
1588 surf = model->surfaces + model->firstmodelsurface;
1589 surfacevisframes = model->surfacevisframes + model->firstmodelsurface;
1590 surfacepvsframes = model->surfacepvsframes + model->firstmodelsurface;
1591 for (i = 0;i < numsurfaces;i++, surf++)
1593 #if WORLDNODECULLBACKFACES
1594 // mark any backface surfaces as not visible
1595 if (PlaneDist(modelorg, surf->plane) < surf->plane->dist)
1597 if ((surf->flags & SURF_PLANEBACK))
1598 surfacevisframes[i] = r_framecount;
1600 else if (!(surf->flags & SURF_PLANEBACK))
1601 surfacevisframes[i] = r_framecount;
1603 surfacevisframes[i] = r_framecount;
1605 surf->dlightframe = -1;
1607 R_PrepareSurfaces(ent);
1610 void R_SurfaceWorldNode (entity_render_t *ent)
1612 int i, *surfacevisframes, *surfacepvsframes, surfnum;
1618 // equivilant to quake's RecursiveWorldNode but faster and more effective
1622 surfacevisframes = model->surfacevisframes + model->firstmodelsurface;
1623 surfacepvsframes = model->surfacepvsframes + model->firstmodelsurface;
1624 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1626 for (leaf = model->pvsleafchain;leaf;leaf = leaf->pvschain)
1628 if (!R_CullBox (leaf->mins, leaf->maxs))
1631 leaf->visframe = r_framecount;
1635 for (i = 0;i < model->pvssurflistlength;i++)
1637 surfnum = model->pvssurflist[i];
1638 surf = model->surfaces + surfnum;
1639 #if WORLDNODECULLBACKFACES
1640 if (PlaneDist(modelorg, surf->plane) < surf->plane->dist)
1642 if ((surf->flags & SURF_PLANEBACK) && !R_CullBox (surf->poly_mins, surf->poly_maxs))
1643 surfacevisframes[surfnum] = r_framecount;
1647 if (!(surf->flags & SURF_PLANEBACK) && !R_CullBox (surf->poly_mins, surf->poly_maxs))
1648 surfacevisframes[surfnum] = r_framecount;
1651 if (!R_CullBox (surf->poly_mins, surf->poly_maxs))
1652 surfacevisframes[surfnum] = r_framecount;
1657 static void R_PortalWorldNode(entity_render_t *ent, mleaf_t *viewleaf)
1659 int c, leafstackpos, *mark, *surfacevisframes;
1660 #if WORLDNODECULLBACKFACES
1664 mleaf_t *leaf, *leafstack[8192];
1667 msurface_t *surfaces;
1668 if (ent->model == NULL)
1670 // LordHavoc: portal-passage worldnode with PVS;
1671 // follows portals leading outward from viewleaf, does not venture
1672 // offscreen or into leafs that are not visible, faster than Quake's
1673 // RecursiveWorldNode
1674 surfaces = ent->model->surfaces;
1675 surfacevisframes = ent->model->surfacevisframes;
1676 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1677 viewleaf->worldnodeframe = r_framecount;
1678 leafstack[0] = viewleaf;
1680 while (leafstackpos)
1683 leaf = leafstack[--leafstackpos];
1684 leaf->visframe = r_framecount;
1685 // draw any surfaces bounding this leaf
1686 if (leaf->nummarksurfaces)
1688 for (c = leaf->nummarksurfaces, mark = leaf->firstmarksurface;c;c--)
1690 #if WORLDNODECULLBACKFACES
1692 if (surfacevisframes[n] != r_framecount)
1694 surf = surfaces + n;
1695 if (PlaneDist(modelorg, surf->plane) < surf->plane->dist)
1697 if ((surf->flags & SURF_PLANEBACK))
1698 surfacevisframes[n] = r_framecount;
1702 if (!(surf->flags & SURF_PLANEBACK))
1703 surfacevisframes[n] = r_framecount;
1707 surfacevisframes[*mark++] = r_framecount;
1711 // follow portals into other leafs
1712 for (p = leaf->portals;p;p = p->next)
1714 // LordHavoc: this DotProduct hurts less than a cache miss
1715 // (which is more likely to happen if backflowing through leafs)
1716 if (DotProduct(modelorg, p->plane.normal) < (p->plane.dist + 1))
1719 if (leaf->worldnodeframe != r_framecount)
1721 leaf->worldnodeframe = r_framecount;
1722 // FIXME: R_CullBox is absolute, should be done relative
1723 if (leaf->pvsframe == ent->model->pvsframecount && !R_CullBox(leaf->mins, leaf->maxs))
1724 leafstack[leafstackpos++] = leaf;
1731 void R_PVSUpdate (entity_render_t *ent, mleaf_t *viewleaf)
1733 int i, j, l, c, bits, *surfacepvsframes, *mark;
1739 if (model && (model->pvsviewleaf != viewleaf || model->pvsviewleafnovis != r_novis.integer))
1741 model->pvsframecount++;
1742 model->pvsviewleaf = viewleaf;
1743 model->pvsviewleafnovis = r_novis.integer;
1744 model->pvsleafchain = NULL;
1745 model->pvssurflistlength = 0;
1748 surfacepvsframes = model->surfacepvsframes;
1749 vis = Mod_LeafPVS (viewleaf, model);
1750 for (j = 0;j < model->numleafs;j += 8)
1755 l = model->numleafs - j;
1758 for (i = 0;i < l;i++)
1760 if (bits & (1 << i))
1762 leaf = &model->leafs[j + i + 1];
1763 leaf->pvschain = model->pvsleafchain;
1764 model->pvsleafchain = leaf;
1765 leaf->pvsframe = model->pvsframecount;
1766 // mark surfaces bounding this leaf as visible
1767 for (c = leaf->nummarksurfaces, mark = leaf->firstmarksurface;c;c--, mark++)
1768 surfacepvsframes[*mark] = model->pvsframecount;
1773 Mod_BuildPVSTextureChains(model);
1778 void R_WorldVisibility (entity_render_t *ent)
1783 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1784 viewleaf = Mod_PointInLeaf (modelorg, ent->model);
1785 R_PVSUpdate(ent, viewleaf);
1790 if (r_surfaceworldnode.integer || viewleaf->contents == CONTENTS_SOLID)
1791 R_SurfaceWorldNode (ent);
1793 R_PortalWorldNode (ent, viewleaf);
1796 void R_DrawWorld (entity_render_t *ent)
1798 if (ent->model == NULL)
1800 R_PrepareSurfaces(ent);
1801 R_DrawSurfaces(ent, SHADERSTAGE_SKY, ent->model->pvstexturechains);
1802 R_DrawSurfaces(ent, SHADERSTAGE_NORMAL, ent->model->pvstexturechains);
1803 if (r_drawportals.integer)
1807 void R_Model_Brush_DrawSky (entity_render_t *ent)
1809 if (ent->model == NULL)
1811 if (ent != &cl_entities[0].render)
1812 R_PrepareBrushModel(ent);
1813 R_DrawSurfaces(ent, SHADERSTAGE_SKY, ent->model->pvstexturechains);
1816 void R_Model_Brush_Draw (entity_render_t *ent)
1818 if (ent->model == NULL)
1821 if (ent != &cl_entities[0].render)
1822 R_PrepareBrushModel(ent);
1823 R_DrawSurfaces(ent, SHADERSTAGE_NORMAL, ent->model->pvstexturechains);
1826 void R_Model_Brush_DrawShadowVolume (entity_render_t *ent, vec3_t relativelightorigin, float lightradius)
1830 float projectdistance, f, temp[3], lightradius2;
1832 if (ent->model == NULL)
1834 R_Mesh_Matrix(&ent->matrix);
1835 lightradius2 = lightradius * lightradius;
1836 R_UpdateTextureInfo(ent);
1837 projectdistance = 1000000000.0f;//lightradius + ent->model->radius;
1838 for (i = 0, surf = ent->model->surfaces + ent->model->firstmodelsurface;i < ent->model->nummodelsurfaces;i++, surf++)
1840 if (surf->texinfo->texture->rendertype == SURFRENDER_OPAQUE && surf->flags & SURF_SHADOWCAST)
1842 f = PlaneDiff(relativelightorigin, surf->plane);
1843 if (surf->flags & SURF_PLANEBACK)
1845 // draw shadows only for frontfaces and only if they are close
1846 if (f >= 0.1 && f < lightradius)
1848 temp[0] = bound(surf->poly_mins[0], relativelightorigin[0], surf->poly_maxs[0]) - relativelightorigin[0];
1849 temp[1] = bound(surf->poly_mins[1], relativelightorigin[1], surf->poly_maxs[1]) - relativelightorigin[1];
1850 temp[2] = bound(surf->poly_mins[2], relativelightorigin[2], surf->poly_maxs[2]) - relativelightorigin[2];
1851 if (DotProduct(temp, temp) < lightradius2)
1853 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1855 R_Mesh_GetSpace(mesh->numverts);
1856 R_Mesh_CopyVertex3f(mesh->vertex3f, mesh->numverts);
1857 R_Shadow_Volume(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->neighbor3i, relativelightorigin, lightradius, projectdistance);
1865 void R_Model_Brush_DrawLightForSurfaceList(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, msurface_t **surflist, int numsurfaces, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz)
1871 if (ent->model == NULL)
1873 R_Mesh_Matrix(&ent->matrix);
1874 R_UpdateTextureInfo(ent);
1875 for (surfnum = 0;surfnum < numsurfaces;surfnum++)
1877 surf = surflist[surfnum];
1878 if (surf->visframe == r_framecount)
1880 t = surf->texinfo->texture->currentframe;
1881 if (t->rendertype == SURFRENDER_OPAQUE && t->flags & SURF_SHADOWLIGHT)
1883 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1885 R_Shadow_DiffuseLighting(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->vertex3f, mesh->svector3f, mesh->tvector3f, mesh->normal3f, mesh->texcoordtexture2f, relativelightorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.base, t->skin.nmap, NULL);
1886 R_Shadow_SpecularLighting(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->vertex3f, mesh->svector3f, mesh->tvector3f, mesh->normal3f, mesh->texcoordtexture2f, relativelightorigin, relativeeyeorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.gloss, t->skin.nmap, NULL);
1893 void R_Model_Brush_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz)
1898 float f, lightmins[3], lightmaxs[3];
1900 if (ent->model == NULL)
1902 R_Mesh_Matrix(&ent->matrix);
1903 lightmins[0] = relativelightorigin[0] - lightradius;
1904 lightmins[1] = relativelightorigin[1] - lightradius;
1905 lightmins[2] = relativelightorigin[2] - lightradius;
1906 lightmaxs[0] = relativelightorigin[0] + lightradius;
1907 lightmaxs[1] = relativelightorigin[1] + lightradius;
1908 lightmaxs[2] = relativelightorigin[2] + lightradius;
1909 R_UpdateTextureInfo(ent);
1910 if (ent != &cl_entities[0].render)
1912 // bmodel, cull crudely to view and light
1913 for (surfnum = 0, surf = ent->model->surfaces + ent->model->firstmodelsurface;surfnum < ent->model->nummodelsurfaces;surfnum++, surf++)
1915 if (BoxesOverlap(surf->poly_mins, surf->poly_maxs, lightmins, lightmaxs))
1917 f = PlaneDiff(relativelightorigin, surf->plane);
1918 if (surf->flags & SURF_PLANEBACK)
1920 if (f >= -0.1 && f < lightradius)
1922 f = PlaneDiff(relativeeyeorigin, surf->plane);
1923 if (surf->flags & SURF_PLANEBACK)
1927 t = surf->texinfo->texture->currentframe;
1928 if (t->rendertype == SURFRENDER_OPAQUE && t->flags & SURF_SHADOWLIGHT)
1930 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1932 R_Shadow_DiffuseLighting(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->vertex3f, mesh->svector3f, mesh->tvector3f, mesh->normal3f, mesh->texcoordtexture2f, relativelightorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.base, t->skin.nmap, NULL);
1933 R_Shadow_SpecularLighting(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->vertex3f, mesh->svector3f, mesh->tvector3f, mesh->normal3f, mesh->texcoordtexture2f, relativelightorigin, relativeeyeorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.gloss, t->skin.nmap, NULL);
1943 // world, already culled to view, just cull to light
1944 for (surfnum = 0, surf = ent->model->surfaces + ent->model->firstmodelsurface;surfnum < ent->model->nummodelsurfaces;surfnum++, surf++)
1946 if (surf->visframe == r_framecount && BoxesOverlap(surf->poly_mins, surf->poly_maxs, lightmins, lightmaxs))
1948 f = PlaneDiff(relativelightorigin, surf->plane);
1949 if (surf->flags & SURF_PLANEBACK)
1951 if (f >= -0.1 && f < lightradius)
1953 t = surf->texinfo->texture->currentframe;
1954 if (t->rendertype == SURFRENDER_OPAQUE && t->flags & SURF_SHADOWLIGHT)
1956 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1958 R_Shadow_DiffuseLighting(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->vertex3f, mesh->svector3f, mesh->tvector3f, mesh->normal3f, mesh->texcoordtexture2f, relativelightorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.base, t->skin.nmap, NULL);
1959 R_Shadow_SpecularLighting(mesh->numverts, mesh->numtriangles, mesh->element3i, mesh->vertex3f, mesh->svector3f, mesh->tvector3f, mesh->normal3f, mesh->texcoordtexture2f, relativelightorigin, relativeeyeorigin, lightradius, lightcolor, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, t->skin.gloss, t->skin.nmap, NULL);
1968 static void gl_surf_start(void)
1972 static void gl_surf_shutdown(void)
1976 static void gl_surf_newmap(void)
1980 void GL_Surf_Init(void)
1983 dlightdivtable[0] = 4194304;
1984 for (i = 1;i < 32768;i++)
1985 dlightdivtable[i] = 4194304 / (i << 7);
1987 Cvar_RegisterVariable(&r_ambient);
1988 Cvar_RegisterVariable(&r_vertexsurfaces);
1989 Cvar_RegisterVariable(&r_dlightmap);
1990 Cvar_RegisterVariable(&r_drawportals);
1991 Cvar_RegisterVariable(&r_testvis);
1992 Cvar_RegisterVariable(&r_floatbuildlightmap);
1993 Cvar_RegisterVariable(&r_detailtextures);
1994 Cvar_RegisterVariable(&r_surfaceworldnode);
1996 R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);