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"};
39 static int dlightdivtable[32768];
41 static int R_IntAddDynamicLights (msurface_t *surf)
43 int sdtable[256], lnum, td, maxdist, maxdist2, maxdist3, i, s, t, smax, tmax, smax3, red, green, blue, lit, dist2, impacts, impactt, subtract;
45 float dist, impact[3], local[3];
47 // LordHavoc: use 64bit integer... shame it's not very standardized...
48 #if _MSC_VER || __BORLANDC__
56 smax = (surf->extents[0] >> 4) + 1;
57 tmax = (surf->extents[1] >> 4) + 1;
60 for (lnum = 0; lnum < r_numdlights; lnum++)
62 if (!(surf->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
63 continue; // not lit by this light
65 softwareuntransform(r_dlight[lnum].origin, local);
66 dist = DotProduct (local, surf->plane->normal) - surf->plane->dist;
68 // for comparisons to minimum acceptable light
69 // compensate for LIGHTOFFSET
70 maxdist = (int) r_dlight[lnum].cullradius2 + LIGHTOFFSET;
77 if (surf->plane->type < 3)
79 VectorCopy(local, impact);
80 impact[surf->plane->type] -= dist;
84 impact[0] = local[0] - surf->plane->normal[0] * dist;
85 impact[1] = local[1] - surf->plane->normal[1] * dist;
86 impact[2] = local[2] - surf->plane->normal[2] * dist;
89 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
90 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
92 s = bound(0, impacts, smax * 16) - impacts;
93 t = bound(0, impactt, tmax * 16) - impactt;
94 i = s * s + t * t + dist2;
98 // reduce calculations
99 for (s = 0, i = impacts; s < smax; s++, i -= 16)
100 sdtable[s] = i * i + dist2;
102 maxdist3 = maxdist - dist2;
104 // convert to 8.8 blocklights format
105 red = r_dlight[lnum].light[0];
106 green = r_dlight[lnum].light[1];
107 blue = r_dlight[lnum].light[2];
108 subtract = (int) (r_dlight[lnum].subtract * 4194304.0f);
112 for (t = 0;t < tmax;t++, i -= 16)
115 // make sure some part of it is visible on this line
118 maxdist2 = maxdist - td;
119 for (s = 0;s < smax;s++)
121 if (sdtable[s] < maxdist2)
123 k = dlightdivtable[(sdtable[s] + td) >> 7] - subtract;
126 bl[0] += (red * k) >> 7;
127 bl[1] += (green * k) >> 7;
128 bl[2] += (blue * k) >> 7;
142 static int R_FloatAddDynamicLights (msurface_t *surf)
144 int lnum, s, t, smax, tmax, smax3, lit, impacts, impactt;
145 float sdtable[256], *bl, k, dist, dist2, maxdist, maxdist2, maxdist3, td1, td, red, green, blue, impact[3], local[3], subtract;
149 smax = (surf->extents[0] >> 4) + 1;
150 tmax = (surf->extents[1] >> 4) + 1;
153 for (lnum = 0; lnum < r_numdlights; lnum++)
155 if (!(surf->dlightbits[lnum >> 5] & (1 << (lnum & 31))))
156 continue; // not lit by this light
158 softwareuntransform(r_dlight[lnum].origin, local);
159 dist = DotProduct (local, surf->plane->normal) - surf->plane->dist;
161 // for comparisons to minimum acceptable light
162 // compensate for LIGHTOFFSET
163 maxdist = (int) r_dlight[lnum].cullradius2 + LIGHTOFFSET;
166 dist2 += LIGHTOFFSET;
167 if (dist2 >= maxdist)
170 if (surf->plane->type < 3)
172 VectorCopy(local, impact);
173 impact[surf->plane->type] -= dist;
177 impact[0] = local[0] - surf->plane->normal[0] * dist;
178 impact[1] = local[1] - surf->plane->normal[1] * dist;
179 impact[2] = local[2] - surf->plane->normal[2] * dist;
182 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
183 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
185 td = bound(0, impacts, smax * 16) - impacts;
186 td1 = bound(0, impactt, tmax * 16) - impactt;
187 td = td * td + td1 * td1 + dist2;
191 // reduce calculations
192 for (s = 0, td1 = impacts; s < smax; s++, td1 -= 16.0f)
193 sdtable[s] = td1 * td1 + dist2;
195 maxdist3 = maxdist - dist2;
197 // convert to 8.8 blocklights format
198 red = r_dlight[lnum].light[0];
199 green = r_dlight[lnum].light[1];
200 blue = r_dlight[lnum].light[2];
201 subtract = r_dlight[lnum].subtract * 32768.0f;
202 bl = floatblocklights;
205 for (t = 0;t < tmax;t++, td1 -= 16.0f)
208 // make sure some part of it is visible on this line
211 maxdist2 = maxdist - td;
212 for (s = 0;s < smax;s++)
214 if (sdtable[s] < maxdist2)
216 k = (32768.0f / (sdtable[s] + td)) - subtract;
236 Combine and scale multiple lightmaps into the 8.8 format in blocklights
239 static void R_BuildLightMap (const entity_render_t *ent, msurface_t *surf, int dlightchanged)
241 if (!r_floatbuildlightmap.integer)
243 int smax, tmax, i, j, size, size3, shift, maps, stride, l;
244 unsigned int *bl, scale;
245 qbyte *lightmap, *out, *stain;
247 // update cached lighting info
248 surf->cached_dlight = 0;
249 surf->cached_lightscalebit = lightscalebit;
250 surf->cached_ambient = r_ambient.value;
251 surf->cached_light[0] = d_lightstylevalue[surf->styles[0]];
252 surf->cached_light[1] = d_lightstylevalue[surf->styles[1]];
253 surf->cached_light[2] = d_lightstylevalue[surf->styles[2]];
254 surf->cached_light[3] = d_lightstylevalue[surf->styles[3]];
256 smax = (surf->extents[0]>>4)+1;
257 tmax = (surf->extents[1]>>4)+1;
260 lightmap = surf->samples;
262 // set to full bright if no light data
264 if ((ent->effects & EF_FULLBRIGHT) || !ent->model->lightdata)
266 for (i = 0;i < size3;i++)
272 j = r_ambient.value * 512.0f; // would be 128.0f logically, but using 512.0f to match winquake style
275 for (i = 0;i < size3;i++)
279 memset(bl, 0, size*3*sizeof(unsigned int));
281 if (surf->dlightframe == r_framecount && r_dlightmap.integer)
283 surf->cached_dlight = R_IntAddDynamicLights(surf);
284 if (surf->cached_dlight)
286 else if (dlightchanged)
287 return; // don't upload if only updating dlights and none mattered
290 // add all the lightmaps
294 for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++, lightmap += size3)
295 for (scale = d_lightstylevalue[surf->styles[maps]], i = 0;i < size3;i++)
296 bl[i] += lightmap[i] * scale;
300 stain = surf->stainsamples;
303 // deal with lightmap brightness scale
304 shift = 7 + lightscalebit + 8;
305 if (ent->model->lightmaprgba)
307 stride = (surf->lightmaptexturestride - smax) * 4;
308 for (i = 0;i < tmax;i++, out += stride)
310 for (j = 0;j < smax;j++)
312 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
313 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
314 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
321 stride = (surf->lightmaptexturestride - smax) * 3;
322 for (i = 0;i < tmax;i++, out += stride)
324 for (j = 0;j < smax;j++)
326 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
327 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
328 l = (*bl++ * *stain++) >> shift;*out++ = min(l, 255);
333 R_UpdateTexture(surf->lightmaptexture, templight);
337 int smax, tmax, i, j, size, size3, maps, stride, l;
339 qbyte *lightmap, *out, *stain;
341 // update cached lighting info
342 surf->cached_dlight = 0;
343 surf->cached_lightscalebit = lightscalebit;
344 surf->cached_ambient = r_ambient.value;
345 surf->cached_light[0] = d_lightstylevalue[surf->styles[0]];
346 surf->cached_light[1] = d_lightstylevalue[surf->styles[1]];
347 surf->cached_light[2] = d_lightstylevalue[surf->styles[2]];
348 surf->cached_light[3] = d_lightstylevalue[surf->styles[3]];
350 smax = (surf->extents[0]>>4)+1;
351 tmax = (surf->extents[1]>>4)+1;
354 lightmap = surf->samples;
356 // set to full bright if no light data
357 bl = floatblocklights;
358 if ((ent->effects & EF_FULLBRIGHT) || !ent->model->lightdata)
361 j = r_ambient.value * 512.0f; // would be 128.0f logically, but using 512.0f to match winquake style
366 for (i = 0;i < size3;i++)
370 memset(bl, 0, size*3*sizeof(float));
372 if (surf->dlightframe == r_framecount && r_dlightmap.integer)
374 surf->cached_dlight = R_FloatAddDynamicLights(surf);
375 if (surf->cached_dlight)
377 else if (dlightchanged)
378 return; // don't upload if only updating dlights and none mattered
381 // add all the lightmaps
384 bl = floatblocklights;
385 for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++, lightmap += size3)
386 for (scale = d_lightstylevalue[surf->styles[maps]], i = 0;i < size3;i++)
387 bl[i] += lightmap[i] * scale;
390 stain = surf->stainsamples;
391 bl = floatblocklights;
393 // deal with lightmap brightness scale
394 scale = 1.0f / (1 << (7 + lightscalebit + 8));
395 if (ent->model->lightmaprgba)
397 stride = (surf->lightmaptexturestride - smax) * 4;
398 for (i = 0;i < tmax;i++, out += stride)
400 for (j = 0;j < smax;j++)
402 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
403 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
404 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
411 stride = (surf->lightmaptexturestride - smax) * 3;
412 for (i = 0;i < tmax;i++, out += stride)
414 for (j = 0;j < smax;j++)
416 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
417 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
418 l = *bl++ * *stain++ * scale;*out++ = min(l, 255);
423 R_UpdateTexture(surf->lightmaptexture, templight);
427 void R_StainNode (mnode_t *node, model_t *model, vec3_t origin, float radius, int icolor[8])
430 msurface_t *surf, *endsurf;
431 int sdtable[256], td, maxdist, maxdist2, maxdist3, i, s, t, smax, tmax, smax3, dist2, impacts, impactt, subtract, a, stained, cr, cg, cb, ca, ratio;
434 // LordHavoc: use 64bit integer... shame it's not very standardized...
435 #if _MSC_VER || __BORLANDC__
442 // for comparisons to minimum acceptable light
443 // compensate for 256 offset
444 maxdist = radius * radius + 256.0f;
446 // clamp radius to avoid exceeding 32768 entry division table
447 if (maxdist > 4194304)
450 subtract = (int) ((1.0f / maxdist) * 4194304.0f);
453 if (node->contents < 0)
455 ndist = PlaneDiff(origin, node->plane);
458 node = node->children[0];
463 node = node->children[1];
467 dist2 = ndist * ndist + 256.0f;
470 maxdist3 = maxdist - dist2;
472 if (node->plane->type < 3)
474 VectorCopy(origin, impact);
475 impact[node->plane->type] -= ndist;
479 impact[0] = origin[0] - node->plane->normal[0] * ndist;
480 impact[1] = origin[1] - node->plane->normal[1] * ndist;
481 impact[2] = origin[2] - node->plane->normal[2] * ndist;
484 for (surf = model->surfaces + node->firstsurface, endsurf = surf + node->numsurfaces;surf < endsurf;surf++)
486 if (surf->stainsamples)
488 smax = (surf->extents[0] >> 4) + 1;
489 tmax = (surf->extents[1] >> 4) + 1;
491 impacts = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
492 impactt = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
494 s = bound(0, impacts, smax * 16) - impacts;
495 t = bound(0, impactt, tmax * 16) - impactt;
496 i = s * s + t * t + dist2;
500 // reduce calculations
501 for (s = 0, i = impacts; s < smax; s++, i -= 16)
502 sdtable[s] = i * i + dist2;
504 // convert to 8.8 blocklights format
505 bl = surf->stainsamples;
510 for (t = 0;t < tmax;t++, i -= 16)
513 // make sure some part of it is visible on this line
516 maxdist2 = maxdist - td;
517 for (s = 0;s < smax;s++)
519 if (sdtable[s] < maxdist2)
521 k = dlightdivtable[(sdtable[s] + td) >> 7] - subtract;
524 ratio = rand() & 255;
525 ca = (((icolor[7] - icolor[3]) * ratio) >> 8) + icolor[3];
529 a = bound(0, a, 256);
530 cr = (((icolor[4] - icolor[0]) * ratio) >> 8) + icolor[0];
531 cg = (((icolor[5] - icolor[1]) * ratio) >> 8) + icolor[1];
532 cb = (((icolor[6] - icolor[2]) * ratio) >> 8) + icolor[2];
533 bl[0] = (qbyte) ((((cr - (int) bl[0]) * a) >> 8) + (int) bl[0]);
534 bl[1] = (qbyte) ((((cg - (int) bl[1]) * a) >> 8) + (int) bl[1]);
535 bl[2] = (qbyte) ((((cb - (int) bl[2]) * a) >> 8) + (int) bl[2]);
546 // force lightmap upload
548 surf->cached_dlight = true;
553 if (node->children[0]->contents >= 0)
555 if (node->children[1]->contents >= 0)
557 R_StainNode(node->children[0], model, origin, radius, icolor);
558 node = node->children[1];
563 node = node->children[0];
567 else if (node->children[1]->contents >= 0)
569 node = node->children[1];
574 void R_Stain (vec3_t origin, float radius, int cr1, int cg1, int cb1, int ca1, int cr2, int cg2, int cb2, int ca2)
577 entity_render_t *ent;
589 model = cl.worldmodel;
590 R_StainNode(model->nodes + model->hulls[0].firstclipnode, model, origin, radius, icolor);
592 // look for embedded bmodels
593 for (n = 0;n < cl_num_brushmodel_entities;n++)
595 ent = cl_brushmodel_entities[n];
597 if (model && model->name[0] == '*')
599 Mod_CheckLoaded(model);
600 if (model->type == mod_brush)
602 Matrix4x4_Transform(&ent->inversematrix, origin, org);
603 R_StainNode(model->nodes + model->hulls[0].firstclipnode, model, org, radius, icolor);
611 =============================================================
615 =============================================================
618 static void RSurf_CopyXYZ(const surfvertex_t *in, float *out, int numverts)
621 for (i = 0;i < numverts;i++, in++, out += 4)
623 VectorCopy(in->v, out);
628 static void RSurf_CopyST(const surfvertex_t *in, float *out, int numverts)
631 for (i = 0;i < numverts;i++, in++, out += 2)
638 static void RSurf_CopyUV(const surfvertex_t *in, float *out, int numverts)
641 for (i = 0;i < numverts;i++, in++, out += 2)
648 static void RSurf_CopyAB(const surfvertex_t *in, float *out, int numverts)
651 for (i = 0;i < numverts;i++, in++, out += 2)
658 static void RSurf_AddLightmapToVertexColors(const surfvertex_t *in, float *c, int numverts, const qbyte *samples, int size3, const qbyte *styles)
663 if (styles[0] != 255)
665 for (i = 0;i < numverts;i++, in++, c += 4)
667 lm = samples + in->lightmapoffset;
668 scale = d_lightstylevalue[styles[0]] * (1.0f / 32768.0f);
669 VectorMA(c, scale, lm, c);
670 if (styles[1] != 255)
673 scale = d_lightstylevalue[styles[1]] * (1.0f / 32768.0f);
674 VectorMA(c, scale, lm, c);
675 if (styles[2] != 255)
678 scale = d_lightstylevalue[styles[2]] * (1.0f / 32768.0f);
679 VectorMA(c, scale, lm, c);
680 if (styles[3] != 255)
683 scale = d_lightstylevalue[styles[3]] * (1.0f / 32768.0f);
684 VectorMA(c, scale, lm, c);
692 static void RSurf_FogColors(const float *v, float *c, float colorscale, int numverts, const float *modelorg)
698 for (i = 0;i < numverts;i++, v += 4, c += 4)
700 VectorSubtract(v, modelorg, diff);
701 f = colorscale * (1 - exp(fogdensity/DotProduct(diff, diff)));
702 VectorScale(c, f, c);
705 else if (colorscale != 1)
706 for (i = 0;i < numverts;i++, c += 4)
707 VectorScale(c, colorscale, c);
710 static void RSurf_FoggedColors(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
719 for (i = 0;i < numverts;i++, v += 4, c += 4)
721 VectorSubtract(v, modelorg, diff);
722 f = 1 - exp(fogdensity/DotProduct(diff, diff));
731 for (i = 0;i < numverts;i++, c += 4)
741 static void RSurf_FogPassColors(const float *v, float *c, float r, float g, float b, float a, float colorscale, int numverts, const float *modelorg)
748 for (i = 0;i < numverts;i++, v += 4, c += 4)
750 VectorSubtract(v, modelorg, diff);
751 f = exp(fogdensity/DotProduct(diff, diff));
759 static void RSurf_ScaleColors(float *c, float scale, int numverts)
763 for (i = 0;i < numverts;i++, c += 4)
764 VectorScale(c, scale, c);
767 static int RSurf_LightSeparate(const matrix4x4_t *matrix, const int *dlightbits, int numverts, const float *vert, float *color)
772 int i, l, lit = false;
775 for (l = 0;l < r_numdlights;l++)
777 if (dlightbits[l >> 5] & (1 << (l & 31)))
780 Matrix4x4_Transform(matrix, rd->origin, lightorigin);
781 for (i = 0, v = vert, c = color;i < numverts;i++, v += 4, c += 4)
783 f = VectorDistance2(v, lightorigin) + LIGHTOFFSET;
784 if (f < rd->cullradius2)
786 f = (1.0f / f) - rd->subtract;
787 VectorMA(c, f, rd->light, c);
796 // note: this untransforms lights to do the checking,
797 // and takes surf->mesh->vertex data
798 static int RSurf_LightCheck(const int *dlightbits, surfmesh_t *mesh)
804 for (l = 0;l < r_numdlights;l++)
806 if (dlightbits[l >> 5] & (1 << (l & 31)))
809 softwareuntransform(rd->origin, lightorigin);
810 for (i = 0, sv = mesh->vertex;i < mesh->numverts;i++, sv++)
811 if (VectorDistance2(sv->v, lightorigin) < rd->cullradius2)
818 static void RSurfShader_Sky(const entity_render_t *ent, const msurface_t *firstsurf)
820 const msurface_t *surf;
824 // LordHavoc: HalfLife maps have freaky skypolys...
825 if (ent->model->ishlbsp)
830 skyrendernow = false;
835 // draw depth-only polys
836 memset(&m, 0, sizeof(m));
839 m.blendfunc1 = GL_ZERO;
840 m.blendfunc2 = GL_ONE;
845 m.blendfunc1 = GL_ONE;
846 m.blendfunc2 = GL_ZERO;
849 m.matrix = ent->matrix;
850 for (surf = firstsurf;surf;surf = surf->chain)
852 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
854 m.numtriangles = mesh->numtriangles;
855 m.numverts = mesh->numverts;
856 if (R_Mesh_Draw_GetBuffer(&m, false))
858 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
859 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
861 memset(m.color, 0, m.numverts * sizeof(float[4]));
863 R_FillColors(m.color, m.numverts, fogcolor[0] * m.colorscale, fogcolor[1] * m.colorscale, fogcolor[2] * m.colorscale, 1);
870 static void RSurfShader_Water_Callback(const void *calldata1, int calldata2)
872 const entity_render_t *ent = calldata1;
873 msurface_t *surf = ent->model->surfaces + calldata2;
877 float alpha = ent->alpha * (surf->flags & SURF_DRAWNOALPHA ? 1 : r_wateralpha.value);
879 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
881 memset(&m, 0, sizeof(m));
882 if (ent->effects & EF_ADDITIVE)
884 m.blendfunc1 = GL_SRC_ALPHA;
885 m.blendfunc2 = GL_ONE;
887 else if (surf->currenttexture->fogtexture != NULL || alpha < 1)
889 m.blendfunc1 = GL_SRC_ALPHA;
890 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
894 m.blendfunc1 = GL_ONE;
895 m.blendfunc2 = GL_ZERO;
897 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
898 m.matrix = ent->matrix;
899 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
901 m.numtriangles = mesh->numtriangles;
902 m.numverts = mesh->numverts;
903 if (R_Mesh_Draw_GetBuffer(&m, true))
905 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
906 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
907 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
908 f = surf->flags & SURF_DRAWFULLBRIGHT ? 1.0f : ((surf->flags & SURF_LIGHTMAP) ? 0 : 0.5f);
909 R_FillColors(m.color, m.numverts, f, f, f, alpha);
910 if (!(surf->flags & SURF_DRAWFULLBRIGHT || ent->effects & EF_FULLBRIGHT))
912 if (surf->dlightframe == r_framecount)
913 RSurf_LightSeparate(&ent->inversematrix, surf->dlightbits, m.numverts, m.vertex, m.color);
914 if (surf->flags & SURF_LIGHTMAP)
915 RSurf_AddLightmapToVertexColors(mesh->vertex, m.color, m.numverts, surf->samples, ((surf->extents[0]>>4)+1)*((surf->extents[1]>>4)+1)*3, surf->styles);
917 RSurf_FogColors(m.vertex, m.color, m.colorscale, m.numverts, modelorg);
924 memset(&m, 0, sizeof(m));
925 m.blendfunc1 = GL_SRC_ALPHA;
926 m.blendfunc2 = GL_ONE;
927 m.tex[0] = R_GetTexture(surf->currenttexture->fogtexture);
928 m.matrix = ent->matrix;
929 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
931 m.numtriangles = mesh->numtriangles;
932 m.numverts = mesh->numverts;
933 if (R_Mesh_Draw_GetBuffer(&m, false))
935 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
936 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
938 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
939 RSurf_FogPassColors(m.vertex, m.color, fogcolor[0], fogcolor[1], fogcolor[2], alpha, m.colorscale, m.numverts, modelorg);
946 static void RSurfShader_Water(const entity_render_t *ent, const msurface_t *firstsurf)
948 const msurface_t *surf;
950 for (surf = firstsurf;surf;surf = surf->chain)
952 if ((r_wateralpha.value < 1 && !(surf->flags & SURF_DRAWNOALPHA)) || ent->effects & EF_ADDITIVE || surf->currenttexture->fogtexture)
954 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
955 R_MeshQueue_AddTransparent(center, RSurfShader_Water_Callback, ent, surf - ent->model->surfaces);
958 R_MeshQueue_Add(RSurfShader_Water_Callback, ent, surf - ent->model->surfaces);
962 static void RSurfShader_Wall_Pass_BaseVertex(const entity_render_t *ent, const msurface_t *surf)
968 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
969 memset(&m, 0, sizeof(m));
970 if (ent->effects & EF_ADDITIVE)
972 m.blendfunc1 = GL_SRC_ALPHA;
973 m.blendfunc2 = GL_ONE;
975 else if (surf->currenttexture->fogtexture != NULL || ent->alpha < 1)
977 m.blendfunc1 = GL_SRC_ALPHA;
978 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
982 m.blendfunc1 = GL_ONE;
983 m.blendfunc2 = GL_ZERO;
985 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
986 base = ent->effects & EF_FULLBRIGHT ? 2.0f : r_ambient.value * (1.0f / 64.0f);
987 m.matrix = ent->matrix;
988 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
990 m.numtriangles = mesh->numtriangles;
991 m.numverts = mesh->numverts;
992 if (R_Mesh_Draw_GetBuffer(&m, true))
994 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
995 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
996 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
997 R_FillColors(m.color, m.numverts, base, base, base, ent->alpha);
998 if (!(ent->effects & EF_FULLBRIGHT))
1000 if (surf->dlightframe == r_framecount)
1001 RSurf_LightSeparate(&ent->inversematrix, surf->dlightbits, m.numverts, m.vertex, m.color);
1002 if (surf->flags & SURF_LIGHTMAP)
1003 RSurf_AddLightmapToVertexColors(mesh->vertex, m.color, m.numverts, surf->samples, ((surf->extents[0]>>4)+1)*((surf->extents[1]>>4)+1)*3, surf->styles);
1005 RSurf_FogColors(m.vertex, m.color, m.colorscale, m.numverts, modelorg);
1011 static void RSurfShader_Wall_Pass_BaseFullbright(const entity_render_t *ent, const msurface_t *surf)
1014 rmeshbufferinfo_t m;
1016 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1017 memset(&m, 0, sizeof(m));
1018 if (ent->effects & EF_ADDITIVE)
1020 m.blendfunc1 = GL_SRC_ALPHA;
1021 m.blendfunc2 = GL_ONE;
1023 else if (surf->currenttexture->fogtexture != NULL || ent->alpha < 1)
1025 m.blendfunc1 = GL_SRC_ALPHA;
1026 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1030 m.blendfunc1 = GL_ONE;
1031 m.blendfunc2 = GL_ZERO;
1033 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
1034 m.matrix = ent->matrix;
1035 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1037 m.numtriangles = mesh->numtriangles;
1038 m.numverts = mesh->numverts;
1039 if (R_Mesh_Draw_GetBuffer(&m, false))
1041 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1042 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1043 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1044 RSurf_FoggedColors(m.vertex, m.color, 1, 1, 1, ent->alpha, m.colorscale, m.numverts, modelorg);
1050 static void RSurfShader_Wall_Pass_Glow(const entity_render_t *ent, const msurface_t *surf)
1053 rmeshbufferinfo_t m;
1055 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1056 memset(&m, 0, sizeof(m));
1057 m.blendfunc1 = GL_SRC_ALPHA;
1058 m.blendfunc2 = GL_ONE;
1059 m.tex[0] = R_GetTexture(surf->currenttexture->glowtexture);
1060 m.matrix = ent->matrix;
1061 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1063 m.numtriangles = mesh->numtriangles;
1064 m.numverts = mesh->numverts;
1065 if (R_Mesh_Draw_GetBuffer(&m, false))
1067 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1068 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1069 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1070 RSurf_FoggedColors(m.vertex, m.color, 1, 1, 1, ent->alpha, m.colorscale, m.numverts, modelorg);
1076 static void RSurfShader_Wall_Pass_Fog(const entity_render_t *ent, const msurface_t *surf)
1079 rmeshbufferinfo_t m;
1081 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1082 memset(&m, 0, sizeof(m));
1083 m.blendfunc1 = GL_SRC_ALPHA;
1084 m.blendfunc2 = GL_ONE;
1085 m.matrix = ent->matrix;
1086 m.tex[0] = R_GetTexture(surf->currenttexture->fogtexture);
1087 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1089 m.numtriangles = mesh->numtriangles;
1090 m.numverts = mesh->numverts;
1091 if (R_Mesh_Draw_GetBuffer(&m, false))
1093 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1094 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1096 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1097 RSurf_FogPassColors(m.vertex, m.color, fogcolor[0], fogcolor[1], fogcolor[2], ent->alpha, m.colorscale, m.numverts, modelorg);
1103 static void RSurfShader_OpaqueWall_Pass_TripleTexCombine(const entity_render_t *ent, const msurface_t *surf)
1106 rmeshbufferinfo_t m;
1108 memset(&m, 0, sizeof(m));
1109 m.blendfunc1 = GL_ONE;
1110 m.blendfunc2 = GL_ZERO;
1111 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
1112 m.texrgbscale[0] = 1.0f;
1113 m.tex[1] = R_GetTexture(surf->lightmaptexture);
1114 m.texrgbscale[1] = 4.0f;
1115 m.tex[2] = R_GetTexture(surf->currenttexture->detailtexture);
1116 m.texrgbscale[2] = 2.0f;
1117 m.matrix = ent->matrix;
1118 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1120 m.numtriangles = mesh->numtriangles;
1121 m.numverts = mesh->numverts;
1122 if (R_Mesh_Draw_GetBuffer(&m, false))
1124 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1125 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1126 cl = (float) (1 << lightscalebit) * m.colorscale;
1127 R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
1128 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1129 RSurf_CopyUV(mesh->vertex, m.texcoords[1], m.numverts);
1130 RSurf_CopyAB(mesh->vertex, m.texcoords[2], m.numverts);
1136 static void RSurfShader_OpaqueWall_Pass_BaseMTex(const entity_render_t *ent, const msurface_t *surf)
1139 rmeshbufferinfo_t m;
1141 memset(&m, 0, sizeof(m));
1142 m.blendfunc1 = GL_ONE;
1143 m.blendfunc2 = GL_ZERO;
1144 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
1145 m.tex[1] = R_GetTexture(surf->lightmaptexture);
1146 m.matrix = ent->matrix;
1147 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1149 m.numtriangles = mesh->numtriangles;
1150 m.numverts = mesh->numverts;
1151 if (R_Mesh_Draw_GetBuffer(&m, true))
1153 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1154 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1155 cl = (float) (1 << lightscalebit) * m.colorscale;
1156 R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
1157 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1158 RSurf_CopyUV(mesh->vertex, m.texcoords[1], m.numverts);
1164 static void RSurfShader_OpaqueWall_Pass_BaseTexture(const entity_render_t *ent, const msurface_t *surf)
1167 rmeshbufferinfo_t m;
1169 memset(&m, 0, sizeof(m));
1170 m.blendfunc1 = GL_ONE;
1171 m.blendfunc2 = GL_ZERO;
1172 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
1173 m.matrix = ent->matrix;
1174 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1176 m.numtriangles = mesh->numtriangles;
1177 m.numverts = mesh->numverts;
1178 if (R_Mesh_Draw_GetBuffer(&m, false))
1180 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1181 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1183 R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
1184 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1190 static void RSurfShader_OpaqueWall_Pass_BaseLightmap(const entity_render_t *ent, const msurface_t *surf)
1193 rmeshbufferinfo_t m;
1195 memset(&m, 0, sizeof(m));
1196 m.blendfunc1 = GL_ZERO;
1197 m.blendfunc2 = GL_SRC_COLOR;
1198 m.tex[0] = R_GetTexture(surf->lightmaptexture);
1199 m.matrix = ent->matrix;
1200 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1202 m.numtriangles = mesh->numtriangles;
1203 m.numverts = mesh->numverts;
1204 if (R_Mesh_Draw_GetBuffer(&m, true))
1206 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1207 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1208 cl = (float) (1 << lightscalebit) * m.colorscale;
1209 R_FillColors(m.color, m.numverts, cl, cl, cl, 1);
1210 RSurf_CopyUV(mesh->vertex, m.texcoords[0], m.numverts);
1216 static void RSurfShader_OpaqueWall_Pass_Light(const entity_render_t *ent, const msurface_t *surf)
1219 rmeshbufferinfo_t m;
1221 if (surf->dlightframe != r_framecount)
1223 if (ent->effects & EF_FULLBRIGHT)
1226 memset(&m, 0, sizeof(m));
1227 m.blendfunc1 = GL_SRC_ALPHA;
1228 m.blendfunc2 = GL_ONE;
1229 m.tex[0] = R_GetTexture(surf->currenttexture->texture);
1230 m.matrix = ent->matrix;
1231 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1233 if (RSurf_LightCheck(surf->dlightbits, mesh))
1235 m.numtriangles = mesh->numtriangles;
1236 m.numverts = mesh->numverts;
1237 if (R_Mesh_Draw_GetBuffer(&m, true))
1239 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1240 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1241 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1242 R_FillColors(m.color, m.numverts, 0, 0, 0, 1);
1243 RSurf_LightSeparate(&ent->inversematrix, surf->dlightbits, m.numverts, m.vertex, m.color);
1244 RSurf_ScaleColors(m.color, m.colorscale, m.numverts);
1251 static void RSurfShader_OpaqueWall_Pass_Fog(const entity_render_t *ent, const msurface_t *surf)
1254 rmeshbufferinfo_t m;
1256 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1257 memset(&m, 0, sizeof(m));
1258 m.blendfunc1 = GL_SRC_ALPHA;
1259 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1260 m.tex[0] = R_GetTexture(surf->currenttexture->fogtexture);
1261 m.matrix = ent->matrix;
1262 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1264 m.numtriangles = mesh->numtriangles;
1265 m.numverts = mesh->numverts;
1266 if (R_Mesh_Draw_GetBuffer(&m, false))
1268 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1269 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1271 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1272 RSurf_FogPassColors(m.vertex, m.color, fogcolor[0], fogcolor[1], fogcolor[2], 1, m.colorscale, m.numverts, modelorg);
1278 static void RSurfShader_OpaqueWall_Pass_BaseDetail(const entity_render_t *ent, const msurface_t *surf)
1281 rmeshbufferinfo_t m;
1282 memset(&m, 0, sizeof(m));
1283 m.blendfunc1 = GL_DST_COLOR;
1284 m.blendfunc2 = GL_SRC_COLOR;
1285 m.tex[0] = R_GetTexture(surf->currenttexture->detailtexture);
1286 m.matrix = ent->matrix;
1287 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1289 m.numtriangles = mesh->numtriangles;
1290 m.numverts = mesh->numverts;
1291 if (R_Mesh_Draw_GetBuffer(&m, false))
1293 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1294 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1295 R_FillColors(m.color, m.numverts, 1, 1, 1, 1);
1296 RSurf_CopyAB(mesh->vertex, m.texcoords[0], m.numverts);
1302 static void RSurfShader_OpaqueWall_Pass_Glow(const entity_render_t *ent, const msurface_t *surf)
1305 rmeshbufferinfo_t m;
1306 memset(&m, 0, sizeof(m));
1307 m.blendfunc1 = GL_SRC_ALPHA;
1308 m.blendfunc2 = GL_ONE;
1309 m.tex[0] = R_GetTexture(surf->currenttexture->glowtexture);
1310 m.matrix = ent->matrix;
1311 for (mesh = surf->mesh;mesh;mesh = mesh->chain)
1313 m.numtriangles = mesh->numtriangles;
1314 m.numverts = mesh->numverts;
1315 if (R_Mesh_Draw_GetBuffer(&m, false))
1317 memcpy(m.index, mesh->index, m.numtriangles * sizeof(int[3]));
1318 RSurf_CopyXYZ(mesh->vertex, m.vertex, m.numverts);
1319 R_FillColors(m.color, m.numverts, m.colorscale, m.colorscale, m.colorscale, 1);
1320 RSurf_CopyST(mesh->vertex, m.texcoords[0], m.numverts);
1326 static void RSurfShader_Wall_Fullbright_Callback(const void *calldata1, int calldata2)
1328 const entity_render_t *ent = calldata1;
1329 const msurface_t *surf = ent->model->surfaces + calldata2;
1330 RSurfShader_Wall_Pass_BaseFullbright(ent, surf);
1331 if (surf->currenttexture->glowtexture)
1332 RSurfShader_Wall_Pass_Glow(ent, surf);
1334 RSurfShader_Wall_Pass_Fog(ent, surf);
1337 static void RSurfShader_Wall_Fullbright(const entity_render_t *ent, const msurface_t *firstsurf)
1339 const msurface_t *surf;
1341 if (ent->effects & EF_ADDITIVE || ent->alpha < 1)
1343 for (surf = firstsurf;surf;surf = surf->chain)
1346 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1347 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Fullbright_Callback, ent, surf - ent->model->surfaces);
1352 for (surf = firstsurf;surf;surf = surf->chain)
1355 if (surf->currenttexture->fogtexture != NULL)
1357 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1358 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Fullbright_Callback, ent, surf - ent->model->surfaces);
1361 RSurfShader_Wall_Pass_BaseFullbright(ent, surf);
1363 for (surf = firstsurf;surf;surf = surf->chain)
1364 if (surf->currenttexture->glowtexture)
1365 if (surf->currenttexture->fogtexture == NULL)
1366 RSurfShader_Wall_Pass_Glow(ent, surf);
1368 for (surf = firstsurf;surf;surf = surf->chain)
1369 if (surf->currenttexture->fogtexture == NULL)
1370 RSurfShader_Wall_Pass_Fog(ent, surf);
1374 static void RSurfShader_Wall_Vertex_Callback(const void *calldata1, int calldata2)
1376 const entity_render_t *ent = calldata1;
1377 const msurface_t *surf = ent->model->surfaces + calldata2;
1378 RSurfShader_Wall_Pass_BaseVertex(ent, surf);
1379 if (surf->currenttexture->glowtexture)
1380 RSurfShader_Wall_Pass_Glow(ent, surf);
1382 RSurfShader_Wall_Pass_Fog(ent, surf);
1385 static void RSurfShader_Wall_Vertex(const entity_render_t *ent, const msurface_t *firstsurf)
1387 const msurface_t *surf;
1389 if (ent->effects & EF_ADDITIVE || ent->alpha < 1)
1391 for (surf = firstsurf;surf;surf = surf->chain)
1394 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1395 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1400 for (surf = firstsurf;surf;surf = surf->chain)
1403 if (surf->currenttexture->fogtexture != NULL)
1405 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1406 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1409 RSurfShader_Wall_Pass_BaseVertex(ent, surf);
1411 for (surf = firstsurf;surf;surf = surf->chain)
1412 if (surf->currenttexture->glowtexture)
1413 if (surf->currenttexture->fogtexture == NULL)
1414 RSurfShader_Wall_Pass_Glow(ent, surf);
1416 for (surf = firstsurf;surf;surf = surf->chain)
1417 if (surf->currenttexture->fogtexture == NULL)
1418 RSurfShader_Wall_Pass_Fog(ent, surf);
1422 static void RSurfShader_Wall_Lightmap(const entity_render_t *ent, const msurface_t *firstsurf)
1424 const msurface_t *surf;
1426 if (ent->alpha < 1 || ent->effects & EF_ADDITIVE)
1428 for (surf = firstsurf;surf;surf = surf->chain)
1431 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1432 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1435 else if (r_vertexsurfaces.integer || ent->alpha < 1 || ent->effects & EF_ADDITIVE)
1437 for (surf = firstsurf;surf;surf = surf->chain)
1440 if (surf->currenttexture->fogtexture != NULL)
1442 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1443 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1446 RSurfShader_Wall_Pass_BaseVertex(ent, surf);
1448 for (surf = firstsurf;surf;surf = surf->chain)
1449 if (surf->currenttexture->glowtexture)
1450 if (surf->currenttexture->fogtexture == NULL)
1451 RSurfShader_Wall_Pass_Glow(ent, surf);
1453 for (surf = firstsurf;surf;surf = surf->chain)
1454 if (surf->currenttexture->fogtexture == NULL)
1455 RSurfShader_Wall_Pass_Fog(ent, surf);
1459 if (r_textureunits.integer >= 2)
1461 if (r_textureunits.integer >= 3 && gl_combine.integer && r_detailtextures.integer)
1463 for (surf = firstsurf;surf;surf = surf->chain)
1466 if (surf->currenttexture->fogtexture != NULL)
1468 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1469 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1472 RSurfShader_OpaqueWall_Pass_TripleTexCombine(ent, surf);
1477 for (surf = firstsurf;surf;surf = surf->chain)
1480 if (surf->currenttexture->fogtexture != NULL)
1482 Matrix4x4_Transform(&ent->matrix, surf->poly_center, center);
1483 R_MeshQueue_AddTransparent(center, RSurfShader_Wall_Vertex_Callback, ent, surf - ent->model->surfaces);
1486 RSurfShader_OpaqueWall_Pass_BaseMTex(ent, surf);
1488 if (r_detailtextures.integer)
1489 for (surf = firstsurf;surf;surf = surf->chain)
1490 if (surf->currenttexture->fogtexture == NULL)
1491 RSurfShader_OpaqueWall_Pass_BaseDetail(ent, surf);
1496 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);
1532 =============================================================
1536 =============================================================
1539 static void R_SolidWorldNode (entity_render_t *ent)
1541 if (r_viewleaf->contents != CONTENTS_SOLID)
1544 mportal_t *p, *pstack[8192];
1545 msurface_t *surf, **mark, **endmark;
1547 // LordHavoc: portal-passage worldnode; follows portals leading
1548 // outward from viewleaf, if a portal leads offscreen it is not
1549 // followed, in indoor maps this can often cull a great deal of
1550 // geometry away when pvs data is not present (useful with pvs as well)
1553 leaf->worldnodeframe = r_framecount;
1558 leaf->visframe = r_framecount;
1560 if (leaf->nummarksurfaces)
1562 mark = leaf->firstmarksurface;
1563 endmark = mark + leaf->nummarksurfaces;
1567 // make sure surfaces are only processed once
1568 if (surf->worldnodeframe == r_framecount)
1570 surf->worldnodeframe = r_framecount;
1571 if (PlaneDist(r_origin, surf->plane) < surf->plane->dist)
1573 if (surf->flags & SURF_PLANEBACK)
1574 surf->visframe = r_framecount;
1578 if (!(surf->flags & SURF_PLANEBACK))
1579 surf->visframe = r_framecount;
1582 while (mark < endmark);
1585 // follow portals into other leafs
1587 for (;p;p = p->next)
1589 if (DotProduct(r_origin, p->plane.normal) < p->plane.dist)
1592 if (leaf->worldnodeframe != r_framecount)
1594 leaf->worldnodeframe = r_framecount;
1595 if (leaf->contents != CONTENTS_SOLID)
1597 if (R_NotCulledBox(leaf->mins, leaf->maxs))
1599 p->visframe = r_framecount;
1600 pstack[portalstack++] = p;
1604 p = pstack[--portalstack];
1616 mnode_t *nodestack[8192], *node = cl.worldmodel->nodes;
1617 int nodestackpos = 0;
1618 // LordHavoc: recursive descending worldnode; if portals are not
1619 // available, this is a good last resort, can cull large amounts of
1620 // geometry, but is more time consuming than portal-passage and renders
1621 // things behind walls
1624 if (R_NotCulledBox(node->mins, node->maxs))
1626 if (node->numsurfaces)
1628 msurface_t *surf = cl.worldmodel->surfaces + node->firstsurface, *surfend = surf + node->numsurfaces;
1629 if (PlaneDiff (r_origin, node->plane) < 0)
1631 for (;surf < surfend;surf++)
1633 if (surf->flags & SURF_PLANEBACK)
1634 surf->visframe = r_framecount;
1639 for (;surf < surfend;surf++)
1641 if (!(surf->flags & SURF_PLANEBACK))
1642 surf->visframe = r_framecount;
1647 // recurse down the children
1648 if (node->children[0]->contents >= 0)
1650 if (node->children[1]->contents >= 0)
1652 if (nodestackpos < 8192)
1653 nodestack[nodestackpos++] = node->children[1];
1654 node = node->children[0];
1658 ((mleaf_t *)node->children[1])->visframe = r_framecount;
1659 node = node->children[0];
1664 ((mleaf_t *)node->children[0])->visframe = r_framecount;
1665 if (node->children[1]->contents >= 0)
1667 node = node->children[1];
1670 else if (nodestackpos > 0)
1672 ((mleaf_t *)node->children[1])->visframe = r_framecount;
1673 node = nodestack[--nodestackpos];
1678 else if (nodestackpos > 0)
1680 node = nodestack[--nodestackpos];
1686 static void R_PVSWorldNode()
1689 mportal_t *p, *pstack[8192];
1690 msurface_t *surf, **mark, **endmark;
1694 worldvis = Mod_LeafPVS (r_viewleaf, cl.worldmodel);
1697 leaf->worldnodeframe = r_framecount;
1702 leaf->visframe = r_framecount;
1704 if (leaf->nummarksurfaces)
1706 mark = leaf->firstmarksurface;
1707 endmark = mark + leaf->nummarksurfaces;
1711 // make sure surfaces are only processed once
1712 if (surf->worldnodeframe == r_framecount)
1714 surf->worldnodeframe = r_framecount;
1715 if (PlaneDist(r_origin, surf->plane) < surf->plane->dist)
1717 if (surf->flags & SURF_PLANEBACK)
1718 surf->visframe = r_framecount;
1722 if (!(surf->flags & SURF_PLANEBACK))
1723 surf->visframe = r_framecount;
1726 while (mark < endmark);
1729 // follow portals into other leafs
1730 for (p = leaf->portals;p;p = p->next)
1732 if (DotProduct(r_origin, p->plane.normal) < p->plane.dist)
1735 if (leaf->worldnodeframe != r_framecount)
1737 leaf->worldnodeframe = r_framecount;
1738 if (leaf->contents != CONTENTS_SOLID)
1740 i = (leaf - cl.worldmodel->leafs) - 1;
1741 if (worldvis[i>>3] & (1<<(i&7)))
1743 if (R_NotCulledBox(leaf->mins, leaf->maxs))
1745 pstack[portalstack++] = p;
1749 p = pstack[--portalstack];
1761 Cshader_t Cshader_wall_vertex = {{NULL, RSurfShader_Wall_Vertex}, NULL};
1762 Cshader_t Cshader_wall_lightmap = {{NULL, RSurfShader_Wall_Lightmap}, NULL};
1763 Cshader_t Cshader_wall_fullbright = {{NULL, RSurfShader_Wall_Fullbright}, NULL};
1764 Cshader_t Cshader_water = {{NULL, RSurfShader_Water}, NULL};
1765 Cshader_t Cshader_sky = {{RSurfShader_Sky, NULL}, NULL};
1767 int Cshader_count = 5;
1768 Cshader_t *Cshaders[5] =
1770 &Cshader_wall_vertex,
1771 &Cshader_wall_lightmap,
1772 &Cshader_wall_fullbright,
1777 void R_PrepareSurfaces(entity_render_t *ent)
1779 int i, alttextures, texframe, framecount;
1784 for (i = 0;i < Cshader_count;i++)
1785 Cshaders[i]->chain = NULL;
1788 alttextures = ent->frame != 0;
1789 texframe = (int)(cl.time * 5.0f);
1791 for (i = 0;i < model->nummodelsurfaces;i++)
1793 surf = model->modelsortedsurfaces[i];
1794 if (surf->visframe == r_framecount)
1796 if (surf->insertframe != r_framecount)
1798 surf->insertframe = r_framecount;
1800 t = surf->texinfo->texture;
1803 framecount = t->anim_total[alttextures];
1804 if (framecount >= 2)
1805 surf->currenttexture = t->anim_frames[alttextures][texframe % framecount];
1807 surf->currenttexture = t->anim_frames[alttextures][0];
1810 surf->currenttexture = t;
1813 surf->chain = surf->shader->chain;
1814 surf->shader->chain = surf;
1819 void R_DrawSurfaces (entity_render_t *ent, int type)
1824 for (i = 0;i < Cshader_count;i++)
1826 shader = Cshaders[i];
1827 if (shader->chain && shader->shaderfunc[type])
1828 shader->shaderfunc[type](ent, shader->chain);
1832 static void R_DrawPortal_Callback(const void *calldata1, int calldata2)
1836 rmeshbufferinfo_t m;
1837 const entity_render_t *ent = calldata1;
1838 const mportal_t *portal = ent->model->portals + calldata2;
1839 memset(&m, 0, sizeof(m));
1840 m.blendfunc1 = GL_SRC_ALPHA;
1841 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1842 m.numverts = portal->numpoints;
1843 m.numtriangles = portal->numpoints - 2;
1844 m.matrix = ent->matrix;
1845 if (R_Mesh_Draw_GetBuffer(&m, false))
1847 for (i = 0;i < m.numtriangles;i++)
1849 m.index[i * 3 + 0] = 0;
1850 m.index[i * 3 + 1] = i + 1;
1851 m.index[i * 3 + 2] = i + 2;
1853 i = portal - ent->model->portals;
1854 R_FillColors(m.color, m.numverts,
1855 ((i & 0x0007) >> 0) * (1.0f / 7.0f) * m.colorscale,
1856 ((i & 0x0038) >> 3) * (1.0f / 7.0f) * m.colorscale,
1857 ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * m.colorscale,
1859 if (PlaneDiff(r_origin, (&portal->plane)) > 0)
1861 for (i = portal->numpoints - 1, v = m.vertex;i >= 0;i--, v += 4)
1862 VectorCopy(portal->points[i].position, v);
1865 for (i = 0, v = m.vertex;i < portal->numpoints;i++, v += 4)
1866 VectorCopy(portal->points[i].position, v);
1871 void R_DrawPortals(entity_render_t *ent)
1874 mportal_t *portal, *endportal;
1875 float temp[3], center[3], f;
1877 if (r_drawportals.integer < 1)
1880 for (portal = ent->model->portals, endportal = portal + ent->model->numportals;portal < endportal;portal++)
1882 if (portal->here->visframe == r_framecount || portal->past->visframe == r_framecount)
1885 for (i = 0;i < portal->numpoints;i++)
1886 VectorAdd(temp, portal->points[i].position, temp);
1887 f = ixtable[portal->numpoints];
1888 VectorScale(temp, f, temp);
1889 Matrix4x4_Transform(&ent->matrix, temp, center);
1890 R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, ent, portal - ent->model->portals);
1895 void R_SetupForBModelRendering(entity_render_t *ent)
1902 // because bmodels can be reused, we have to decide which things to render
1903 // from scratch every time
1907 Matrix4x4_Transform(&ent->inversematrix, r_origin, modelorg);
1908 for (i = 0;i < model->nummodelsurfaces;i++)
1910 surf = model->modelsortedsurfaces[i];
1911 if (((surf->flags & SURF_PLANEBACK) == 0) == (PlaneDiff(modelorg, surf->plane) >= 0))
1912 surf->visframe = r_framecount;
1914 surf->visframe = -1;
1915 surf->worldnodeframe = -1;
1916 surf->lightframe = -1;
1917 surf->dlightframe = -1;
1918 surf->insertframe = -1;
1922 void R_SurfMarkLights (entity_render_t *ent)
1927 if (r_dynamic.integer)
1930 if (!r_vertexsurfaces.integer)
1932 for (i = 0, surf = ent->model->surfaces + ent->model->firstmodelsurface;i < ent->model->nummodelsurfaces;i++, surf++)
1934 if (surf->visframe == r_framecount && surf->lightmaptexture != NULL)
1936 if (surf->cached_dlight
1937 || surf->cached_ambient != r_ambient.value
1938 || surf->cached_lightscalebit != lightscalebit)
1939 R_BuildLightMap(ent, surf, false); // base lighting changed
1940 else if (r_dynamic.integer)
1942 if (surf->styles[0] != 255 && (d_lightstylevalue[surf->styles[0]] != surf->cached_light[0]
1943 || (surf->styles[1] != 255 && (d_lightstylevalue[surf->styles[1]] != surf->cached_light[1]
1944 || (surf->styles[2] != 255 && (d_lightstylevalue[surf->styles[2]] != surf->cached_light[2]
1945 || (surf->styles[3] != 255 && (d_lightstylevalue[surf->styles[3]] != surf->cached_light[3]))))))))
1946 R_BuildLightMap(ent, surf, false); // base lighting changed
1947 else if (surf->dlightframe == r_framecount && r_dlightmap.integer)
1948 R_BuildLightMap(ent, surf, true); // only dlights
1960 void R_DrawWorld (entity_render_t *ent)
1962 // there is only one instance of the world, but it can be rendered in
1964 if (r_viewleaf->contents == CONTENTS_SOLID || r_novis.integer || r_viewleaf->compressed_vis == NULL)
1965 R_SolidWorldNode (ent);
1967 R_PVSWorldNode (ent);
1975 void R_DrawBrushModelSky (entity_render_t *ent)
1977 R_SetupForBModelRendering(ent);
1979 R_PrepareSurfaces(ent);
1980 R_DrawSurfaces(ent, SHADERSTAGE_SKY);
1983 void R_DrawBrushModelNormal (entity_render_t *ent)
1987 // have to flush queue because of possible lightmap reuse
1990 R_SetupForBModelRendering(ent);
1992 R_SurfMarkLights(ent);
1994 R_PrepareSurfaces(ent);
1996 if (!skyrendermasked)
1997 R_DrawSurfaces(ent, SHADERSTAGE_SKY);
1998 R_DrawSurfaces(ent, SHADERSTAGE_NORMAL);
2001 static void gl_surf_start(void)
2005 static void gl_surf_shutdown(void)
2009 static void gl_surf_newmap(void)
2013 void GL_Surf_Init(void)
2016 dlightdivtable[0] = 4194304;
2017 for (i = 1;i < 32768;i++)
2018 dlightdivtable[i] = 4194304 / (i << 7);
2020 Cvar_RegisterVariable(&r_ambient);
2021 Cvar_RegisterVariable(&r_vertexsurfaces);
2022 Cvar_RegisterVariable(&r_dlightmap);
2023 Cvar_RegisterVariable(&r_drawportals);
2024 Cvar_RegisterVariable(&r_testvis);
2025 Cvar_RegisterVariable(&r_floatbuildlightmap);
2026 Cvar_RegisterVariable(&r_detailtextures);
2028 R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);