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
24 #define MAX_LIGHTMAP_SIZE 256
26 static unsigned int intblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
27 static float floatblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
29 static qbyte templight[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*4];
31 cvar_t r_ambient = {0, "r_ambient", "0"};
32 cvar_t r_vertexsurfaces = {0, "r_vertexsurfaces", "0"};
33 cvar_t r_dlightmap = {CVAR_SAVE, "r_dlightmap", "1"};
34 //cvar_t r_drawportals = {0, "r_drawportals", "0"};
35 cvar_t r_testvis = {0, "r_testvis", "0"};
36 cvar_t r_floatbuildlightmap = {0, "r_floatbuildlightmap", "0"};
37 cvar_t r_detailtextures = {CVAR_SAVE, "r_detailtextures", "1"};
38 cvar_t r_surfaceworldnode = {0, "r_surfaceworldnode", "0"};
39 cvar_t r_cullsurface = {0, "r_cullsurface", "0"};
41 static int dlightdivtable[32768];
43 // variables used by R_PVSUpdate
44 int r_pvsframecount = 0;
45 mleaf_t *r_pvsviewleaf = NULL;
46 int r_pvsviewleafnovis = 0;
47 msurface_t *r_pvsfirstsurface = NULL;
49 static int R_IntAddDynamicLights (const matrix4x4_t *matrix, msurface_t *surf)
51 int sdtable[256], lnum, td, maxdist, maxdist2, maxdist3, i, s, t, smax, tmax, smax3, red, green, blue, lit, dist2, impacts, impactt, subtract;
53 float dist, impact[3], local[3];
55 // LordHavoc: use 64bit integer... shame it's not very standardized...
56 #if _MSC_VER || __BORLANDC__
64 smax = (surf->extents[0] >> 4) + 1;
65 tmax = (surf->extents[1] >> 4) + 1;
68 for (lnum = 0; lnum < r_numdlights; lnum++)
70 if (!(surf->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
71 continue; // not lit by this light
73 Matrix4x4_Transform(matrix, r_dlight[lnum].origin, local);
74 dist = DotProduct (local, surf->plane->normal) - surf->plane->dist;
76 // for comparisons to minimum acceptable light
77 // compensate for LIGHTOFFSET
78 maxdist = (int) r_dlight[lnum].cullradius2 + LIGHTOFFSET;
85 if (surf->plane->type < 3)
87 VectorCopy(local, impact);
88 impact[surf->plane->type] -= dist;
92 impact[0] = local[0] - surf->plane->normal[0] * dist;
93 impact[1] = local[1] - surf->plane->normal[1] * dist;
94 impact[2] = local[2] - surf->plane->normal[2] * dist;
97 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
98 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
100 s = bound(0, impacts, smax * 16) - impacts;
101 t = bound(0, impactt, tmax * 16) - impactt;
102 i = s * s + t * t + dist2;
106 // reduce calculations
107 for (s = 0, i = impacts; s < smax; s++, i -= 16)
108 sdtable[s] = i * i + dist2;
110 maxdist3 = maxdist - dist2;
112 // convert to 8.8 blocklights format
113 red = r_dlight[lnum].light[0];
114 green = r_dlight[lnum].light[1];
115 blue = r_dlight[lnum].light[2];
116 subtract = (int) (r_dlight[lnum].subtract * 4194304.0f);
120 for (t = 0;t < tmax;t++, i -= 16)
123 // make sure some part of it is visible on this line
126 maxdist2 = maxdist - td;
127 for (s = 0;s < smax;s++)
129 if (sdtable[s] < maxdist2)
131 k = dlightdivtable[(sdtable[s] + td) >> 7] - subtract;
134 bl[0] += (red * k) >> 7;
135 bl[1] += (green * k) >> 7;
136 bl[2] += (blue * k) >> 7;
150 static int R_FloatAddDynamicLights (const matrix4x4_t *matrix, msurface_t *surf)
152 int lnum, s, t, smax, tmax, smax3, lit, impacts, impactt;
153 float sdtable[256], *bl, k, dist, dist2, maxdist, maxdist2, maxdist3, td1, td, red, green, blue, impact[3], local[3], subtract;
157 smax = (surf->extents[0] >> 4) + 1;
158 tmax = (surf->extents[1] >> 4) + 1;
161 for (lnum = 0; lnum < r_numdlights; lnum++)
163 if (!(surf->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
164 continue; // not lit by this light
166 Matrix4x4_Transform(matrix, r_dlight[lnum].origin, local);
167 dist = DotProduct (local, surf->plane->normal) - surf->plane->dist;
169 // for comparisons to minimum acceptable light
170 // compensate for LIGHTOFFSET
171 maxdist = (int) r_dlight[lnum].cullradius2 + LIGHTOFFSET;
174 dist2 += LIGHTOFFSET;
175 if (dist2 >= maxdist)
178 if (surf->plane->type < 3)
180 VectorCopy(local, impact);
181 impact[surf->plane->type] -= dist;
185 impact[0] = local[0] - surf->plane->normal[0] * dist;
186 impact[1] = local[1] - surf->plane->normal[1] * dist;
187 impact[2] = local[2] - surf->plane->normal[2] * dist;
190 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
191 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
193 td = bound(0, impacts, smax * 16) - impacts;
194 td1 = bound(0, impactt, tmax * 16) - impactt;
195 td = td * td + td1 * td1 + dist2;
199 // reduce calculations
200 for (s = 0, td1 = impacts; s < smax; s++, td1 -= 16.0f)
201 sdtable[s] = td1 * td1 + dist2;
203 maxdist3 = maxdist - dist2;
205 // convert to 8.8 blocklights format
206 red = r_dlight[lnum].light[0];
207 green = r_dlight[lnum].light[1];
208 blue = r_dlight[lnum].light[2];
209 subtract = r_dlight[lnum].subtract * 32768.0f;
210 bl = floatblocklights;
213 for (t = 0;t < tmax;t++, td1 -= 16.0f)
216 // make sure some part of it is visible on this line
219 maxdist2 = maxdist - td;
220 for (s = 0;s < smax;s++)
222 if (sdtable[s] < maxdist2)
224 k = (32768.0f / (sdtable[s] + td)) - subtract;
244 Combine and scale multiple lightmaps into the 8.8 format in blocklights
247 static void R_BuildLightMap (const entity_render_t *ent, msurface_t *surf, int dlightchanged)
249 if (!r_floatbuildlightmap.integer)
251 int smax, tmax, i, j, size, size3, shift, maps, stride, l;
252 unsigned int *bl, scale;
253 qbyte *lightmap, *out, *stain;
255 // update cached lighting info
256 surf->cached_dlight = 0;
257 surf->cached_lightscalebit = lightscalebit;
258 surf->cached_ambient = r_ambient.value;
259 surf->cached_light[0] = d_lightstylevalue[surf->styles[0]];
260 surf->cached_light[1] = d_lightstylevalue[surf->styles[1]];
261 surf->cached_light[2] = d_lightstylevalue[surf->styles[2]];
262 surf->cached_light[3] = d_lightstylevalue[surf->styles[3]];
264 smax = (surf->extents[0]>>4)+1;
265 tmax = (surf->extents[1]>>4)+1;
268 lightmap = surf->samples;
270 // set to full bright if no light data
272 if ((ent->effects & EF_FULLBRIGHT) || !ent->model->lightdata)
274 for (i = 0;i < size3;i++)
280 j = r_ambient.value * 512.0f; // would be 128.0f logically, but using 512.0f to match winquake style
283 for (i = 0;i < size3;i++)
287 memset(bl, 0, size*3*sizeof(unsigned int));
289 if (surf->dlightframe == r_framecount && r_dlightmap.integer)
291 surf->cached_dlight = R_IntAddDynamicLights(&ent->inversematrix, surf);
292 if (surf->cached_dlight)
294 else if (dlightchanged)
295 return; // don't upload if only updating dlights and none mattered
298 // add all the lightmaps
302 for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++, lightmap += size3)
303 for (scale = d_lightstylevalue[surf->styles[maps]], i = 0;i < size3;i++)
304 bl[i] += lightmap[i] * scale;
308 stain = surf->stainsamples;
311 // deal with lightmap brightness scale
312 shift = 7 + lightscalebit + 8;
313 if (ent->model->lightmaprgba)
315 stride = (surf->lightmaptexturestride - smax) * 4;
316 for (i = 0;i < tmax;i++, out += stride)
318 for (j = 0;j < smax;j++)
320 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
321 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
322 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
329 stride = (surf->lightmaptexturestride - smax) * 3;
330 for (i = 0;i < tmax;i++, out += stride)
332 for (j = 0;j < smax;j++)
334 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
335 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
336 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
341 R_UpdateTexture(surf->lightmaptexture, templight);
345 int smax, tmax, i, j, size, size3, maps, stride, l;
347 qbyte *lightmap, *out, *stain;
349 // update cached lighting info
350 surf->cached_dlight = 0;
351 surf->cached_lightscalebit = lightscalebit;
352 surf->cached_ambient = r_ambient.value;
353 surf->cached_light[0] = d_lightstylevalue[surf->styles[0]];
354 surf->cached_light[1] = d_lightstylevalue[surf->styles[1]];
355 surf->cached_light[2] = d_lightstylevalue[surf->styles[2]];
356 surf->cached_light[3] = d_lightstylevalue[surf->styles[3]];
358 smax = (surf->extents[0]>>4)+1;
359 tmax = (surf->extents[1]>>4)+1;
362 lightmap = surf->samples;
364 // set to full bright if no light data
365 bl = floatblocklights;
366 if ((ent->effects & EF_FULLBRIGHT) || !ent->model->lightdata)
369 j = r_ambient.value * 512.0f; // would be 128.0f logically, but using 512.0f to match winquake style
374 for (i = 0;i < size3;i++)
378 memset(bl, 0, size*3*sizeof(float));
380 if (surf->dlightframe == r_framecount && r_dlightmap.integer)
382 surf->cached_dlight = R_FloatAddDynamicLights(&ent->inversematrix, surf);
383 if (surf->cached_dlight)
385 else if (dlightchanged)
386 return; // don't upload if only updating dlights and none mattered
389 // add all the lightmaps
392 bl = floatblocklights;
393 for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++, lightmap += size3)
394 for (scale = d_lightstylevalue[surf->styles[maps]], i = 0;i < size3;i++)
395 bl[i] += lightmap[i] * scale;
398 stain = surf->stainsamples;
399 bl = floatblocklights;
401 // deal with lightmap brightness scale
402 scale = 1.0f / (1 << (7 + lightscalebit + 8));
403 if (ent->model->lightmaprgba)
405 stride = (surf->lightmaptexturestride - smax) * 4;
406 for (i = 0;i < tmax;i++, out += stride)
408 for (j = 0;j < smax;j++)
410 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
411 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
412 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
419 stride = (surf->lightmaptexturestride - smax) * 3;
420 for (i = 0;i < tmax;i++, out += stride)
422 for (j = 0;j < smax;j++)
424 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
425 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
426 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
431 R_UpdateTexture(surf->lightmaptexture, templight);
435 void R_StainNode (mnode_t *node, model_t *model, vec3_t origin, float radius, int icolor[8])
438 msurface_t *surf, *endsurf;
439 int sdtable[256], td, maxdist, maxdist2, maxdist3, i, s, t, smax, tmax, smax3, dist2, impacts, impactt, subtract, a, stained, cr, cg, cb, ca, ratio;
442 // LordHavoc: use 64bit integer... shame it's not very standardized...
443 #if _MSC_VER || __BORLANDC__
450 // for comparisons to minimum acceptable light
451 // compensate for 256 offset
452 maxdist = radius * radius + 256.0f;
454 // clamp radius to avoid exceeding 32768 entry division table
455 if (maxdist > 4194304)
458 subtract = (int) ((1.0f / maxdist) * 4194304.0f);
461 if (node->contents < 0)
463 ndist = PlaneDiff(origin, node->plane);
466 node = node->children[0];
471 node = node->children[1];
475 dist2 = ndist * ndist + 256.0f;
478 maxdist3 = maxdist - dist2;
480 if (node->plane->type < 3)
482 VectorCopy(origin, impact);
483 impact[node->plane->type] -= ndist;
487 impact[0] = origin[0] - node->plane->normal[0] * ndist;
488 impact[1] = origin[1] - node->plane->normal[1] * ndist;
489 impact[2] = origin[2] - node->plane->normal[2] * ndist;
492 for (surf = model->surfaces + node->firstsurface, endsurf = surf + node->numsurfaces;surf < endsurf;surf++)
494 if (surf->stainsamples)
496 smax = (surf->extents[0] >> 4) + 1;
497 tmax = (surf->extents[1] >> 4) + 1;
499 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
500 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
502 s = bound(0, impacts, smax * 16) - impacts;
503 t = bound(0, impactt, tmax * 16) - impactt;
504 i = s * s + t * t + dist2;
508 // reduce calculations
509 for (s = 0, i = impacts; s < smax; s++, i -= 16)
510 sdtable[s] = i * i + dist2;
512 // convert to 8.8 blocklights format
513 bl = surf->stainsamples;
518 for (t = 0;t < tmax;t++, i -= 16)
521 // make sure some part of it is visible on this line
524 maxdist2 = maxdist - td;
525 for (s = 0;s < smax;s++)
527 if (sdtable[s] < maxdist2)
529 k = dlightdivtable[(sdtable[s] + td) >> 7] - subtract;
532 ratio = rand() & 255;
533 ca = (((icolor[7] - icolor[3]) * ratio) >> 8) + icolor[3];
537 a = bound(0, a, 256);
538 cr = (((icolor[4] - icolor[0]) * ratio) >> 8) + icolor[0];
539 cg = (((icolor[5] - icolor[1]) * ratio) >> 8) + icolor[1];
540 cb = (((icolor[6] - icolor[2]) * ratio) >> 8) + icolor[2];
541 bl[0] = (qbyte) ((((cr - (int) bl[0]) * a) >> 8) + (int) bl[0]);
542 bl[1] = (qbyte) ((((cg - (int) bl[1]) * a) >> 8) + (int) bl[1]);
543 bl[2] = (qbyte) ((((cb - (int) bl[2]) * a) >> 8) + (int) bl[2]);
554 // force lightmap upload
556 surf->cached_dlight = true;
561 if (node->children[0]->contents >= 0)
563 if (node->children[1]->contents >= 0)
565 R_StainNode(node->children[0], model, origin, radius, icolor);
566 node = node->children[1];
571 node = node->children[0];
575 else if (node->children[1]->contents >= 0)
577 node = node->children[1];
582 void R_Stain (vec3_t origin, float radius, int cr1, int cg1, int cb1, int ca1, int cr2, int cg2, int cb2, int ca2)
585 entity_render_t *ent;
597 model = cl.worldmodel;
599 R_StainNode(model->nodes + model->hulls[0].firstclipnode, model, origin, radius, icolor);
601 // look for embedded bmodels
602 for (n = 0;n < cl_num_brushmodel_entities;n++)
604 ent = cl_brushmodel_entities[n];
606 if (model && model->name[0] == '*')
608 Mod_CheckLoaded(model);
609 if (model->type == mod_brush)
611 Matrix4x4_Transform(&ent->inversematrix, origin, org);
612 R_StainNode(model->nodes + model->hulls[0].firstclipnode, model, org, radius, icolor);
620 =============================================================
624 =============================================================
627 static void RSurf_CopyXYZ(const surfvertex_t *in, float *out, int numverts)
630 for (i = 0;i < numverts;i++, in++, out += 4)
632 VectorCopy(in->v, out);
637 static void RSurf_CopyST(const surfvertex_t *in, float *out, int numverts)
640 for (i = 0;i < numverts;i++, in++, out += 2)
647 static void RSurf_CopyUV(const surfvertex_t *in, float *out, int numverts)
650 for (i = 0;i < numverts;i++, in++, out += 2)
657 static void RSurf_CopyAB(const surfvertex_t *in, float *out, int numverts)
660 for (i = 0;i < numverts;i++, in++, out += 2)
667 static void RSurf_AddLightmapToVertexColors(const surfvertex_t *in, float *c, int numverts, const qbyte *samples, int size3, const qbyte *styles)
672 if (styles[0] != 255)
674 for (i = 0;i < numverts;i++, in++, c += 4)
676 lm = samples + in->lightmapoffset;
677 scale = d_lightstylevalue[styles[0]] * (1.0f / 32768.0f);
678 VectorMA(c, scale, lm, c);
679 if (styles[1] != 255)
682 scale = d_lightstylevalue[styles[1]] * (1.0f / 32768.0f);
683 VectorMA(c, scale, lm, c);
684 if (styles[2] != 255)
687 scale = d_lightstylevalue[styles[2]] * (1.0f / 32768.0f);
688 VectorMA(c, scale, lm, c);
689 if (styles[3] != 255)
692 scale = d_lightstylevalue[styles[3]] * (1.0f / 32768.0f);
693 VectorMA(c, scale, lm, c);
701 static void RSurf_FogColors(const float *v, float *c, float colorscale, int numverts, const float *modelorg)
707 for (i = 0;i < numverts;i++, v += 4, c += 4)
709 VectorSubtract(v, modelorg, diff);
710 f = colorscale * (1 - exp(fogdensity/DotProduct(diff, diff)));
711 VectorScale(c, f, c);
714 else if (colorscale != 1)
715 for (i = 0;i < numverts;i++, c += 4)
716 VectorScale(c, colorscale, c);
719 static void RSurf_FoggedColors(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
728 for (i = 0;i < numverts;i++, v += 4, c += 4)
730 VectorSubtract(v, modelorg, diff);
731 f = 1 - exp(fogdensity/DotProduct(diff, diff));
740 for (i = 0;i < numverts;i++, c += 4)
750 static void RSurf_FogPassColors(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
757 for (i = 0;i < numverts;i++, v += 4, c += 4)
759 VectorSubtract(v, modelorg, diff);
760 f = exp(fogdensity/DotProduct(diff, diff));
768 static void RSurf_ScaleColors(float *c, float scale, int numverts)
772 for (i = 0;i < numverts;i++, c += 4)
773 VectorScale(c, scale, c);
776 static int RSurf_LightSeparate(const matrix4x4_t *matrix, const int *dlightbits, int numverts, const float *vert, float *color)
781 int i, l, lit = false;
784 for (l = 0;l < r_numdlights;l++)
786 if (dlightbits[l >> 5] & (1 << (l & 31)))
789 Matrix4x4_Transform(matrix, rd->origin, lightorigin);
790 for (i = 0, v = vert, c = color;i < numverts;i++, v += 4, c += 4)
792 f = VectorDistance2(v, lightorigin) + LIGHTOFFSET;
793 if (f < rd->cullradius2)
795 f = (1.0f / f) - rd->subtract;
796 VectorMA(c, f, rd->light, c);
805 // note: this untransforms lights to do the checking,
806 // and takes surf->mesh->vertex data
807 static int RSurf_LightCheck(const matrix4x4_t *matrix, const int *dlightbits, surfmesh_t *mesh)
813 for (l = 0;l < r_numdlights;l++)
815 if (dlightbits[l >> 5] & (1 << (l & 31)))
818 Matrix4x4_Transform(matrix, rd->origin, lightorigin);
819 for (i = 0, sv = mesh->vertex;i < mesh->numverts;i++, sv++)
820 if (VectorDistance2(sv->v, lightorigin) < rd->cullradius2)
827 static void RSurfShader_Sky(const entity_render_t *ent, const msurface_t *firstsurf)
829 const msurface_t *surf;
833 // LordHavoc: HalfLife maps have freaky skypolys...
834 if (ent->model->ishlbsp)
839 skyrendernow = false;
844 // draw depth-only polys
845 memset(&m, 0, sizeof(m));
848 m.blendfunc1 = GL_ZERO;
849 m.blendfunc2 = GL_ONE;
854 m.blendfunc1 = GL_ONE;
855 m.blendfunc2 = GL_ZERO;
858 m.matrix = ent->matrix;
859 for (surf = firstsurf;surf;surf = surf->chain)
861 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
863 m.numtriangles = mesh->numtriangles;
864 m.numverts = mesh->numverts;
865 if (R_Mesh_Draw_GetBuffer(&m, false))
867 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
868 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
870 memset(m.color, 0, m.numverts * sizeof(float[4]));
872 R_FillColors(m.color, m.numverts, fogcolor[0] * m.colorscale, fogcolor[1] * m.colorscale, fogcolor[2] * m.colorscale, 1);
879 static void RSurfShader_Water_Callback(const void *calldata1, int calldata2)
881 const entity_render_t *ent = calldata1;
882 msurface_t *surf = ent->model->surfaces + calldata2;
886 float alpha = ent->alpha * (surf->flags & SURF_DRAWNOALPHA ? 1 : r_wateralpha.value);
888 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
890 memset(&m, 0, sizeof(m));
891 if (ent->effects & EF_ADDITIVE)
893 m.blendfunc1 = GL_SRC_ALPHA;
894 m.blendfunc2 = GL_ONE;
896 else if (surf->currenttexture->fogtexture != NULL || alpha < 1)
898 m.blendfunc1 = GL_SRC_ALPHA;
899 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
903 m.blendfunc1 = GL_ONE;
904 m.blendfunc2 = GL_ZERO;
906 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
907 m.matrix = ent->matrix;
908 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
910 m.numtriangles = mesh->numtriangles;
911 m.numverts = mesh->numverts;
912 if (R_Mesh_Draw_GetBuffer(&m, true))
914 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
915 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
916 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
917 f = surf->flags & SURF_DRAWFULLBRIGHT ? 1.0f : ((surf->flags & SURF_LIGHTMAP) ? 0 : 0.5f);
918 R_FillColors(m.color, m.numverts, f, f, f, alpha);
919 if (!(surf->flags & SURF_DRAWFULLBRIGHT || ent->effects & EF_FULLBRIGHT))
921 if (surf->dlightframe == r_framecount)
922 RSurf_LightSeparate(&ent->inversematrix, surf->dlightbits, m.numverts, m.vertex, m.color);
923 if (surf->flags & SURF_LIGHTMAP)
924 RSurf_AddLightmapToVertexColors(mesh->vertex, m.color, m.numverts, surf->samples, ((surf->extents[0]>>4)+1)*((surf->extents[1]>>4)+1)*3, surf->styles);
926 RSurf_FogColors(m.vertex, m.color, m.colorscale, m.numverts, modelorg);
933 memset(&m, 0, sizeof(m));
934 m.blendfunc1 = GL_SRC_ALPHA;
935 m.blendfunc2 = GL_ONE;
936 m.tex[0] = R_GetTexture(surf->currenttexture->fogtexture);
937 m.matrix = ent->matrix;
938 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
940 m.numtriangles = mesh->numtriangles;
941 m.numverts = mesh->numverts;
942 if (R_Mesh_Draw_GetBuffer(&m, false))
944 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
945 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
947 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
948 RSurf_FogPassColors(m.vertex, m.color, fogcolor[0], fogcolor[1], fogcolor[2], alpha, m.colorscale, m.numverts, modelorg);
955 static void RSurfShader_Water(const entity_render_t *ent, const msurface_t *firstsurf)
957 const msurface_t *surf;
959 for (surf = firstsurf;surf;surf = surf->chain)
961 if ((r_wateralpha.value < 1 && !(surf->flags & SURF_DRAWNOALPHA)) || ent->effects & EF_ADDITIVE || surf->currenttexture->fogtexture)
963 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
964 R_MeshQueue_AddTransparent(center, RSurfShader_Water_Callback, ent, surf - ent->model->surfaces);
967 R_MeshQueue_Add(RSurfShader_Water_Callback, ent, surf - ent->model->surfaces);
971 static void RSurfShader_Wall_Pass_BaseVertex(const entity_render_t *ent, const msurface_t *surf)
977 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
978 memset(&m, 0, sizeof(m));
979 if (ent->effects & EF_ADDITIVE)
981 m.blendfunc1 = GL_SRC_ALPHA;
982 m.blendfunc2 = GL_ONE;
984 else if (surf->currenttexture->fogtexture != NULL || ent->alpha < 1)
986 m.blendfunc1 = GL_SRC_ALPHA;
987 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
991 m.blendfunc1 = GL_ONE;
992 m.blendfunc2 = GL_ZERO;
994 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
995 base = ent->effects & EF_FULLBRIGHT ? 2.0f : r_ambient.value * (1.0f / 64.0f);
996 m.matrix = ent->matrix;
997 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
999 m.numtriangles = mesh->numtriangles;
1000 m.numverts = mesh->numverts;
1001 if (R_Mesh_Draw_GetBuffer(&m, true))
1003 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1004 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1005 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1006 R_FillColors(m.color, m.numverts, base, base, base, ent->alpha);
1007 if (!(ent->effects & EF_FULLBRIGHT))
1009 if (surf->dlightframe == r_framecount)
1010 RSurf_LightSeparate(&ent->inversematrix, surf->dlightbits, m.numverts, m.vertex, m.color);
1011 if (surf->flags & SURF_LIGHTMAP)
1012 RSurf_AddLightmapToVertexColors(mesh->vertex, m.color, m.numverts, surf->samples, ((surf->extents[0]>>4)+1)*((surf->extents[1]>>4)+1)*3, surf->styles);
1014 RSurf_FogColors(m.vertex, m.color, m.colorscale, m.numverts, modelorg);
1020 static void RSurfShader_Wall_Pass_BaseFullbright(const entity_render_t *ent, const msurface_t *surf)
1023 rmeshbufferinfo_t m;
1025 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1026 memset(&m, 0, sizeof(m));
1027 if (ent->effects & EF_ADDITIVE)
1029 m.blendfunc1 = GL_SRC_ALPHA;
1030 m.blendfunc2 = GL_ONE;
1032 else if (surf->currenttexture->fogtexture != NULL || ent->alpha < 1)
1034 m.blendfunc1 = GL_SRC_ALPHA;
1035 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1039 m.blendfunc1 = GL_ONE;
1040 m.blendfunc2 = GL_ZERO;
1042 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
1043 m.matrix = ent->matrix;
1044 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1046 m.numtriangles = mesh->numtriangles;
1047 m.numverts = mesh->numverts;
1048 if (R_Mesh_Draw_GetBuffer(&m, false))
1050 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1051 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1052 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1053 RSurf_FoggedColors(m.vertex, m.color, 1, 1, 1, ent->alpha, m.colorscale, m.numverts, modelorg);
1059 static void RSurfShader_Wall_Pass_Glow(const entity_render_t *ent, const msurface_t *surf)
1062 rmeshbufferinfo_t m;
1064 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1065 memset(&m, 0, sizeof(m));
1066 m.blendfunc1 = GL_SRC_ALPHA;
1067 m.blendfunc2 = GL_ONE;
1068 m.tex[0] = R_GetTexture(surf->currenttexture->glowtexture);
1069 m.matrix = ent->matrix;
1070 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1072 m.numtriangles = mesh->numtriangles;
1073 m.numverts = mesh->numverts;
1074 if (R_Mesh_Draw_GetBuffer(&m, false))
1076 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1077 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1078 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1079 RSurf_FoggedColors(m.vertex, m.color, 1, 1, 1, ent->alpha, m.colorscale, m.numverts, modelorg);
1085 static void RSurfShader_Wall_Pass_Fog(const entity_render_t *ent, const msurface_t *surf)
1088 rmeshbufferinfo_t m;
1090 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1091 memset(&m, 0, sizeof(m));
1092 m.blendfunc1 = GL_SRC_ALPHA;
1093 m.blendfunc2 = GL_ONE;
1094 m.matrix = ent->matrix;
1095 m.tex[0] = R_GetTexture(surf->currenttexture->fogtexture);
1096 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1098 m.numtriangles = mesh->numtriangles;
1099 m.numverts = mesh->numverts;
1100 if (R_Mesh_Draw_GetBuffer(&m, false))
1102 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1103 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1105 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1106 RSurf_FogPassColors(m.vertex, m.color, fogcolor[0], fogcolor[1], fogcolor[2], ent->alpha, m.colorscale, m.numverts, modelorg);
1112 static void RSurfShader_OpaqueWall_Pass_TripleTexCombine(const entity_render_t *ent, const msurface_t *surf)
1115 rmeshbufferinfo_t m;
1117 memset(&m, 0, sizeof(m));
1118 m.blendfunc1 = GL_ONE;
1119 m.blendfunc2 = GL_ZERO;
1120 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
1121 m.texrgbscale[0] = 1.0f;
1122 m.tex[1] = R_GetTexture(surf->lightmaptexture);
1123 m.texrgbscale[1] = 4.0f;
1124 m.tex[2] = R_GetTexture(surf->currenttexture->detailtexture);
1125 m.texrgbscale[2] = 2.0f;
1126 m.matrix = ent->matrix;
1127 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1129 m.numtriangles = mesh->numtriangles;
1130 m.numverts = mesh->numverts;
1131 if (R_Mesh_Draw_GetBuffer(&m, false))
1133 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1134 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1135 cl = (float) (1 << lightscalebit) * m.colorscale;
1136 R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
1137 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1138 RSurf_CopyUV(mesh->vertex, m.texcoords[1], m.numverts);
1139 RSurf_CopyAB(mesh->vertex, m.texcoords[2], m.numverts);
1145 static void RSurfShader_OpaqueWall_Pass_BaseMTex(const entity_render_t *ent, const msurface_t *surf)
1148 rmeshbufferinfo_t m;
1150 memset(&m, 0, sizeof(m));
1151 m.blendfunc1 = GL_ONE;
1152 m.blendfunc2 = GL_ZERO;
1153 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
1154 m.tex[1] = R_GetTexture(surf->lightmaptexture);
1155 m.matrix = ent->matrix;
1156 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1158 m.numtriangles = mesh->numtriangles;
1159 m.numverts = mesh->numverts;
1160 if (R_Mesh_Draw_GetBuffer(&m, true))
1162 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1163 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1164 cl = (float) (1 << lightscalebit) * m.colorscale;
1165 R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
1166 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1167 RSurf_CopyUV(mesh->vertex, m.texcoords[1], m.numverts);
1173 static void RSurfShader_OpaqueWall_Pass_BaseTexture(const entity_render_t *ent, const msurface_t *surf)
1176 rmeshbufferinfo_t m;
1178 memset(&m, 0, sizeof(m));
1179 m.blendfunc1 = GL_ONE;
1180 m.blendfunc2 = GL_ZERO;
1181 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
1182 m.matrix = ent->matrix;
1183 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1185 m.numtriangles = mesh->numtriangles;
1186 m.numverts = mesh->numverts;
1187 if (R_Mesh_Draw_GetBuffer(&m, false))
1189 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1190 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1192 R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
1193 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1199 static void RSurfShader_OpaqueWall_Pass_BaseLightmap(const entity_render_t *ent, const msurface_t *surf)
1202 rmeshbufferinfo_t m;
1204 memset(&m, 0, sizeof(m));
1205 m.blendfunc1 = GL_ZERO;
1206 m.blendfunc2 = GL_SRC_COLOR;
1207 m.tex[0] = R_GetTexture(surf->lightmaptexture);
1208 m.matrix = ent->matrix;
1209 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1211 m.numtriangles = mesh->numtriangles;
1212 m.numverts = mesh->numverts;
1213 if (R_Mesh_Draw_GetBuffer(&m, true))
1215 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1216 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1217 cl = (float) (1 << lightscalebit) * m.colorscale;
1218 R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
1219 RSurf_CopyUV(mesh->vertex, m.texcoords[0], m.numverts);
1225 static void RSurfShader_OpaqueWall_Pass_Light(const entity_render_t *ent, const msurface_t *surf)
1228 rmeshbufferinfo_t m;
1230 if (surf->dlightframe != r_framecount)
1232 if (ent->effects & EF_FULLBRIGHT)
1235 memset(&m, 0, sizeof(m));
1236 m.blendfunc1 = GL_SRC_ALPHA;
1237 m.blendfunc2 = GL_ONE;
1238 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
1239 m.matrix = ent->matrix;
1240 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1242 if (RSurf_LightCheck(&ent->inversematrix, surf->dlightbits, mesh))
1244 m.numtriangles = mesh->numtriangles;
1245 m.numverts = mesh->numverts;
1246 if (R_Mesh_Draw_GetBuffer(&m, true))
1248 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1249 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1250 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1251 R_FillColors(m.color, m.numverts, 0, 0, 0, 1);
1252 RSurf_LightSeparate(&ent->inversematrix, surf->dlightbits, m.numverts, m.vertex, m.color);
1253 RSurf_ScaleColors(m.color, m.colorscale, m.numverts);
1260 static void RSurfShader_OpaqueWall_Pass_Fog(const entity_render_t *ent, const msurface_t *surf)
1263 rmeshbufferinfo_t m;
1265 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1266 memset(&m, 0, sizeof(m));
1267 m.blendfunc1 = GL_SRC_ALPHA;
1268 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1269 m.tex[0] = R_GetTexture(surf->currenttexture->fogtexture);
1270 m.matrix = ent->matrix;
1271 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1273 m.numtriangles = mesh->numtriangles;
1274 m.numverts = mesh->numverts;
1275 if (R_Mesh_Draw_GetBuffer(&m, false))
1277 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1278 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1280 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1281 RSurf_FogPassColors(m.vertex, m.color, fogcolor[0], fogcolor[1], fogcolor[2], 1, m.colorscale, m.numverts, modelorg);
1287 static void RSurfShader_OpaqueWall_Pass_BaseDetail(const entity_render_t *ent, const msurface_t *surf)
1290 rmeshbufferinfo_t m;
1291 memset(&m, 0, sizeof(m));
1292 m.blendfunc1 = GL_DST_COLOR;
1293 m.blendfunc2 = GL_SRC_COLOR;
1294 m.tex[0] = R_GetTexture(surf->currenttexture->detailtexture);
1295 m.matrix = ent->matrix;
1296 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1298 m.numtriangles = mesh->numtriangles;
1299 m.numverts = mesh->numverts;
1300 if (R_Mesh_Draw_GetBuffer(&m, false))
1302 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1303 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1304 R_FillColors(m.color, m.numverts, 1, 1, 1, 1);
1305 RSurf_CopyAB(mesh->vertex, m.texcoords[0], m.numverts);
1311 static void RSurfShader_OpaqueWall_Pass_Glow(const entity_render_t *ent, const msurface_t *surf)
1314 rmeshbufferinfo_t m;
1315 memset(&m, 0, sizeof(m));
1316 m.blendfunc1 = GL_SRC_ALPHA;
1317 m.blendfunc2 = GL_ONE;
1318 m.tex[0] = R_GetTexture(surf->currenttexture->glowtexture);
1319 m.matrix = ent->matrix;
1320 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1322 m.numtriangles = mesh->numtriangles;
1323 m.numverts = mesh->numverts;
1324 if (R_Mesh_Draw_GetBuffer(&m, false))
1326 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1327 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1328 R_FillColors(m.color, m.numverts, m.colorscale, m.colorscale, m.colorscale, 1);
1329 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1335 static void RSurfShader_Wall_Fullbright_Callback(const void *calldata1, int calldata2)
1337 const entity_render_t *ent = calldata1;
1338 const msurface_t *surf = ent->model->surfaces + calldata2;
1339 RSurfShader_Wall_Pass_BaseFullbright(ent, surf);
1340 if (surf->currenttexture->glowtexture)
1341 RSurfShader_Wall_Pass_Glow(ent, surf);
1343 RSurfShader_Wall_Pass_Fog(ent, surf);
1346 static void RSurfShader_Wall_Fullbright(const entity_render_t *ent, const msurface_t *firstsurf)
1348 const msurface_t *surf;
1350 if (ent->effects & EF_ADDITIVE || ent->alpha < 1)
1352 for (surf = firstsurf;surf;surf = surf->chain)
1354 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1355 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Fullbright_Callback, ent, surf - ent->model->surfaces);
1360 for (surf = firstsurf;surf;surf = surf->chain)
1362 if (surf->currenttexture->fogtexture != NULL)
1364 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1365 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Fullbright_Callback, ent, surf - ent->model->surfaces);
1368 RSurfShader_Wall_Pass_BaseFullbright(ent, surf);
1370 for (surf = firstsurf;surf;surf = surf->chain)
1371 if (surf->currenttexture->glowtexture)
1372 if (surf->currenttexture->fogtexture == NULL)
1373 RSurfShader_Wall_Pass_Glow(ent, surf);
1375 for (surf = firstsurf;surf;surf = surf->chain)
1376 if (surf->currenttexture->fogtexture == NULL)
1377 RSurfShader_Wall_Pass_Fog(ent, surf);
1381 static void RSurfShader_Wall_Vertex_Callback(const void *calldata1, int calldata2)
1383 const entity_render_t *ent = calldata1;
1384 const msurface_t *surf = ent->model->surfaces + calldata2;
1385 RSurfShader_Wall_Pass_BaseVertex(ent, surf);
1386 if (surf->currenttexture->glowtexture)
1387 RSurfShader_Wall_Pass_Glow(ent, surf);
1389 RSurfShader_Wall_Pass_Fog(ent, surf);
1392 static void RSurfShader_Wall_Vertex(const entity_render_t *ent, const msurface_t *firstsurf)
1394 const msurface_t *surf;
1396 if (ent->effects & EF_ADDITIVE || ent->alpha < 1)
1398 for (surf = firstsurf;surf;surf = surf->chain)
1400 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1401 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1406 for (surf = firstsurf;surf;surf = surf->chain)
1408 if (surf->currenttexture->fogtexture != NULL)
1410 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1411 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1414 RSurfShader_Wall_Pass_BaseVertex(ent, surf);
1416 for (surf = firstsurf;surf;surf = surf->chain)
1417 if (surf->currenttexture->glowtexture)
1418 if (surf->currenttexture->fogtexture == NULL)
1419 RSurfShader_Wall_Pass_Glow(ent, surf);
1421 for (surf = firstsurf;surf;surf = surf->chain)
1422 if (surf->currenttexture->fogtexture == NULL)
1423 RSurfShader_Wall_Pass_Fog(ent, surf);
1427 static void RSurfShader_Wall_Lightmap(const entity_render_t *ent, const msurface_t *firstsurf)
1429 const msurface_t *surf;
1431 if (ent->alpha < 1 || ent->effects & EF_ADDITIVE)
1433 for (surf = firstsurf;surf;surf = surf->chain)
1435 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1436 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1439 else if (r_vertexsurfaces.integer || ent->alpha < 1 || ent->effects & EF_ADDITIVE)
1441 for (surf = firstsurf;surf;surf = surf->chain)
1443 if (surf->currenttexture->fogtexture != NULL)
1445 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1446 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1449 RSurfShader_Wall_Pass_BaseVertex(ent, surf);
1451 for (surf = firstsurf;surf;surf = surf->chain)
1452 if (surf->currenttexture->glowtexture)
1453 if (surf->currenttexture->fogtexture == NULL)
1454 RSurfShader_Wall_Pass_Glow(ent, surf);
1456 for (surf = firstsurf;surf;surf = surf->chain)
1457 if (surf->currenttexture->fogtexture == NULL)
1458 RSurfShader_Wall_Pass_Fog(ent, surf);
1462 if (r_textureunits.integer >= 2)
1464 if (r_textureunits.integer >= 3 && gl_combine.integer && r_detailtextures.integer)
1466 for (surf = firstsurf;surf;surf = surf->chain)
1468 if (surf->currenttexture->fogtexture != NULL)
1470 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1471 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1474 RSurfShader_OpaqueWall_Pass_TripleTexCombine(ent, surf);
1479 for (surf = firstsurf;surf;surf = surf->chain)
1481 if (surf->currenttexture->fogtexture != NULL)
1483 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1484 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1487 RSurfShader_OpaqueWall_Pass_BaseMTex(ent, surf);
1489 if (r_detailtextures.integer)
1490 for (surf = firstsurf;surf;surf = surf->chain)
1491 if (surf->currenttexture->fogtexture == NULL)
1492 RSurfShader_OpaqueWall_Pass_BaseDetail(ent, surf);
1497 for (surf = firstsurf;surf;surf = surf->chain)
1499 if (surf->currenttexture->fogtexture != NULL)
1501 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1502 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1505 RSurfShader_OpaqueWall_Pass_BaseTexture(ent, surf);
1507 for (surf = firstsurf;surf;surf = surf->chain)
1508 if (surf->currenttexture->fogtexture == NULL)
1509 RSurfShader_OpaqueWall_Pass_BaseLightmap(ent, surf);
1510 if (r_detailtextures.integer)
1511 for (surf = firstsurf;surf;surf = surf->chain)
1512 if (surf->currenttexture->fogtexture == NULL)
1513 RSurfShader_OpaqueWall_Pass_BaseDetail(ent, surf);
1515 if (!r_dlightmap.integer)
1516 for (surf = firstsurf;surf;surf = surf->chain)
1517 if (surf->dlightframe == r_framecount)
1518 if (surf->currenttexture->fogtexture == NULL)
1519 RSurfShader_OpaqueWall_Pass_Light(ent, surf);
1520 for (surf = firstsurf;surf;surf = surf->chain)
1521 if (surf->currenttexture->glowtexture)
1522 if (surf->currenttexture->fogtexture == NULL)
1523 RSurfShader_OpaqueWall_Pass_Glow(ent, surf);
1525 for (surf = firstsurf;surf;surf = surf->chain)
1526 if (surf->currenttexture->fogtexture == NULL)
1527 RSurfShader_OpaqueWall_Pass_Fog(ent, surf);
1531 Cshader_t Cshader_wall_vertex = {{NULL, RSurfShader_Wall_Vertex}, NULL};
1532 Cshader_t Cshader_wall_lightmap = {{NULL, RSurfShader_Wall_Lightmap}, NULL};
1533 Cshader_t Cshader_wall_fullbright = {{NULL, RSurfShader_Wall_Fullbright}, NULL};
1534 Cshader_t Cshader_water = {{NULL, RSurfShader_Water}, NULL};
1535 Cshader_t Cshader_sky = {{RSurfShader_Sky, NULL}, NULL};
1537 int Cshader_count = 5;
1538 Cshader_t *Cshaders[5] =
1540 &Cshader_wall_vertex,
1541 &Cshader_wall_lightmap,
1542 &Cshader_wall_fullbright,
1547 void R_DrawSurfaces(entity_render_t *ent, int sky, int normal)
1549 int i, alttextures, texframe, framecount;
1559 for (i = 0;i < Cshader_count;i++)
1560 Cshaders[i]->chain = NULL;
1563 alttextures = ent->frame != 0;
1564 texframe = (int)(cl.time * 5.0f);
1566 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1567 for (i = 0;i < model->nummodelsurfaces;i++)
1569 surf = model->modelsortedsurfaces[i];
1570 if (surf->visframe == r_framecount)
1572 // mark any backface surfaces as not visible
1573 if (PlaneDist(modelorg, surf->plane) < surf->plane->dist)
1575 if (!(surf->flags & SURF_PLANEBACK))
1576 surf->visframe = -1;
1580 if (surf->flags & SURF_PLANEBACK)
1581 surf->visframe = -1;
1583 if (surf->visframe == r_framecount)
1585 if (r_cullsurface.integer && R_CullBox (surf->poly_mins, surf->poly_maxs))
1586 surf->visframe = -1;
1590 t = surf->texinfo->texture;
1593 framecount = t->anim_total[alttextures];
1594 if (framecount >= 2)
1595 surf->currenttexture = t->anim_frames[alttextures][texframe % framecount];
1597 surf->currenttexture = t->anim_frames[alttextures][0];
1600 surf->currenttexture = t;
1601 surf->chain = surf->shader->chain;
1602 surf->shader->chain = surf;
1610 for (i = 0;i < Cshader_count;i++)
1612 shader = Cshaders[i];
1613 if (shader->chain && shader->shaderfunc[SHADERSTAGE_SKY])
1614 shader->shaderfunc[SHADERSTAGE_SKY](ent, shader->chain);
1620 if (r_dynamic.integer)
1623 if (!r_vertexsurfaces.integer)
1625 for (i = 0, surf = ent->model->surfaces + ent->model->firstmodelsurface;i < ent->model->nummodelsurfaces;i++, surf++)
1627 if (surf->visframe == r_framecount && surf->lightmaptexture != NULL)
1629 if (surf->cached_dlight
1630 || surf->cached_ambient != r_ambient.value
1631 || surf->cached_lightscalebit != lightscalebit)
1632 R_BuildLightMap(ent, surf, false); // base lighting changed
1633 else if (r_dynamic.integer)
1635 if (surf->styles[0] != 255 && (d_lightstylevalue[surf->styles[0]] != surf->cached_light[0]
1636 || (surf->styles[1] != 255 && (d_lightstylevalue[surf->styles[1]] != surf->cached_light[1]
1637 || (surf->styles[2] != 255 && (d_lightstylevalue[surf->styles[2]] != surf->cached_light[2]
1638 || (surf->styles[3] != 255 && (d_lightstylevalue[surf->styles[3]] != surf->cached_light[3]))))))))
1639 R_BuildLightMap(ent, surf, false); // base lighting changed
1640 else if (surf->dlightframe == r_framecount && r_dlightmap.integer)
1641 R_BuildLightMap(ent, surf, true); // only dlights
1647 for (i = 0;i < Cshader_count;i++)
1649 shader = Cshaders[i];
1650 if (shader->chain && shader->shaderfunc[SHADERSTAGE_NORMAL])
1651 shader->shaderfunc[SHADERSTAGE_NORMAL](ent, shader->chain);
1657 static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
1661 rmeshbufferinfo_t m;
1662 const entity_render_t *ent = calldata1;
1663 const mportal_t *portal = ent->model->portals + calldata2;
1664 memset(&m, 0, sizeof(m));
1665 m.blendfunc1 = GL_SRC_ALPHA;
1666 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1667 m.numverts = portal->numpoints;
1668 m.numtriangles = portal->numpoints - 2;
1669 m.matrix = ent->matrix;
1670 if (R_Mesh_Draw_GetBuffer(&m, false))
1672 for (i = 0;i < m.numtriangles;i++)
1674 m.index[i * 3 + 0] = 0;
1675 m.index[i * 3 + 1] = i + 1;
1676 m.index[i * 3 + 2] = i + 2;
1678 i = portal - ent->model->portals;
1679 R_FillColors(m.color, m.numverts,
1680 ((i & 0x0007) >> 0) * (1.0f / 7.0f) * m.colorscale,
1681 ((i & 0x0038) >> 3) * (1.0f / 7.0f) * m.colorscale,
1682 ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * m.colorscale,
1684 if (PlaneDiff(r_origin, (&portal->plane)) > 0)
1686 for (i = portal->numpoints - 1, v = m.vertex;i >= 0;i--, v += 4)
1687 VectorCopy(portal->points[i].position, v);
1690 for (i = 0, v = m.vertex;i < portal->numpoints;i++, v += 4)
1691 VectorCopy(portal->points[i].position, v);
1696 static void R_DrawPortals(entity_render_t *ent)
1699 mportal_t *portal, *endportal;
1700 float temp[3], center[3], f;
1702 if (r_drawportals.integer < 1)
1705 for (portal = ent->model->portals, endportal = portal + ent->model->numportals;portal < endportal;portal++)
1707 if (portal->here->visframe == r_framecount || portal->past->visframe == r_framecount)
1710 for (i = 0;i < portal->numpoints;i++)
1711 VectorAdd(temp, portal->points[i].position, temp);
1712 f = ixtable[portal->numpoints];
1713 VectorScale(temp, f, temp);
1714 Matrix4x4_Transform(&ent->matrix, temp, center);
1715 R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, ent, portal - ent->model->portals);
1721 void R_DrawBrushModel(entity_render_t *ent, int sky, int normal)
1728 // because bmodels can be reused, we have to decide which things to render
1729 // from scratch every time
1731 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1732 for (i = 0;i < model->nummodelsurfaces;i++)
1734 surf = model->surfaces + model->firstmodelsurface + i;
1735 surf->visframe = r_framecount;
1736 surf->pvsframe = -1;
1737 surf->worldnodeframe = -1;
1738 surf->lightframe = -1;
1739 surf->dlightframe = -1;
1741 R_DrawSurfaces(ent, sky, normal);
1744 void R_SurfaceWorldNode (void)
1747 for (surf = r_pvsfirstsurface;surf;surf = surf->pvschain)
1748 surf->visframe = r_framecount;
1752 static void R_PortalWorldNode(entity_render_t *ent, mleaf_t *viewleaf)
1755 mportal_t *p, *pstack[8192];
1756 msurface_t *surf, **mark, **endmark;
1758 // LordHavoc: portal-passage worldnode with PVS;
1759 // follows portals leading outward from viewleaf, does not venture
1760 // offscreen or into leafs that are not visible, faster than Quake's
1761 // RecursiveWorldNode
1763 leaf->worldnodeframe = r_framecount;
1767 if (leaf->nummarksurfaces)
1769 for (c = leaf->nummarksurfaces, mark = leaf->firstmarksurface;c;c--)
1772 // make sure surfaces are only processed once
1773 if (surf->worldnodeframe != r_framecount)
1775 surf->worldnodeframe = r_framecount;
1776 if (PlaneDist(r_origin, surf->plane) < surf->plane->dist)
1778 if (surf->flags & SURF_PLANEBACK)
1779 surf->visframe = r_framecount;
1783 if (!(surf->flags & SURF_PLANEBACK))
1784 surf->visframe = r_framecount;
1789 // follow portals into other leafs
1790 for (p = leaf->portals;p;p = p->next)
1793 if (leaf->worldnodeframe != r_framecount)
1795 leaf->worldnodeframe = r_framecount;
1796 // FIXME: R_NotCulledBox is absolute, should be done relative
1797 if (leaf->pvsframe == r_pvsframecount && R_NotCulledBox(leaf->mins, leaf->maxs))
1799 p->visframe = r_framecount;
1800 pstack[portalstack++] = p;
1803 p = pstack[--portalstack];
1812 static void R_PortalWorldNode(entity_render_t *ent, mleaf_t *viewleaf)
1814 int c, leafstackpos;
1815 mleaf_t *leaf, *leafstack[8192];
1819 // LordHavoc: portal-passage worldnode with PVS;
1820 // follows portals leading outward from viewleaf, does not venture
1821 // offscreen or into leafs that are not visible, faster than Quake's
1822 // RecursiveWorldNode
1823 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1824 viewleaf->worldnodeframe = r_framecount;
1825 leafstack[0] = viewleaf;
1827 while (leafstackpos)
1830 leaf = leafstack[--leafstackpos];
1831 // only useful for drawing portals
1832 //leaf->visframe = r_framecount;
1833 // draw any surfaces bounding this leaf
1834 if (leaf->nummarksurfaces)
1835 for (c = leaf->nummarksurfaces, mark = leaf->firstmarksurface;c;c--)
1836 (*mark++)->visframe = r_framecount;
1837 // follow portals into other leafs
1838 for (p = leaf->portals;p;p = p->next)
1841 if (leaf->worldnodeframe != r_framecount)
1843 leaf->worldnodeframe = r_framecount;
1844 // FIXME: R_NotCulledBox is absolute, should be done relative
1845 if (leaf->pvsframe == r_pvsframecount && R_NotCulledBox(leaf->mins, leaf->maxs))
1846 leafstack[leafstackpos++] = leaf;
1850 //if (r_drawportals.integer)
1851 // R_DrawPortals(ent);
1855 void R_PVSUpdate (mleaf_t *viewleaf)
1857 int i, j, l, c, bits;
1860 msurface_t **mark, *surf;
1862 if (r_pvsviewleaf == viewleaf && r_pvsviewleafnovis == r_novis.integer)
1866 r_pvsviewleaf = viewleaf;
1867 r_pvsviewleafnovis = r_novis.integer;
1871 vis = Mod_LeafPVS (viewleaf, cl.worldmodel);
1872 for (j = 0;j < cl.worldmodel->numleafs;j += 8)
1877 l = cl.worldmodel->numleafs - j;
1880 for (i = 0;i < l;i++)
1882 if (bits & (1 << i))
1884 leaf = &cl.worldmodel->leafs[j + i + 1];
1885 leaf->pvsframe = r_pvsframecount;
1886 // mark surfaces bounding this leaf as visible
1887 for (c = leaf->nummarksurfaces, mark = leaf->firstmarksurface;c;c--)
1888 (*mark++)->pvsframe = r_pvsframecount;
1893 // build pvs surfacechain
1894 r_pvsfirstsurface = NULL;
1895 mark = &r_pvsfirstsurface;
1896 for (c = cl.worldmodel->nummodelsurfaces, surf = cl.worldmodel->surfaces + cl.worldmodel->firstmodelsurface;c;c--, surf++)
1898 if (surf->pvsframe == r_pvsframecount)
1901 mark = &surf->pvschain;
1913 void R_DrawWorld (entity_render_t *ent)
1916 viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
1917 R_PVSUpdate(viewleaf);
1920 if (r_surfaceworldnode.integer || viewleaf->contents == CONTENTS_SOLID)
1921 R_SurfaceWorldNode ();
1923 R_PortalWorldNode (ent, viewleaf);
1924 R_DrawSurfaces(ent, true, true);
1932 void R_DrawBrushModelSky (entity_render_t *ent)
1934 R_DrawBrushModel(ent, true, false);
1937 void R_DrawBrushModelNormal (entity_render_t *ent)
1940 R_DrawBrushModel(ent, false, true);
1943 static void gl_surf_start(void)
1947 static void gl_surf_shutdown(void)
1951 static void gl_surf_newmap(void)
1953 // reset pvs visibility variables so it will update on first frame
1954 r_pvsframecount = 1;
1955 r_pvsviewleaf = NULL;
1956 r_pvsviewleafnovis = false;
1957 r_pvsfirstsurface = NULL;
1960 void GL_Surf_Init(void)
1963 dlightdivtable[0] = 4194304;
1964 for (i = 1;i < 32768;i++)
1965 dlightdivtable[i] = 4194304 / (i << 7);
1967 Cvar_RegisterVariable(&r_ambient);
1968 Cvar_RegisterVariable(&r_vertexsurfaces);
1969 Cvar_RegisterVariable(&r_dlightmap);
1970 //Cvar_RegisterVariable(&r_drawportals);
1971 Cvar_RegisterVariable(&r_testvis);
1972 Cvar_RegisterVariable(&r_floatbuildlightmap);
1973 Cvar_RegisterVariable(&r_detailtextures);
1974 Cvar_RegisterVariable(&r_surfaceworldnode);
1975 Cvar_RegisterVariable(&r_cullsurface);
1977 R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);