19fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 29fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamCopyright (C) 1996-1997 Id Software, Inc. 39fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 49fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamThis program is free software; you can redistribute it and/or 59fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreammodify it under the terms of the GNU General Public License 69fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamas published by the Free Software Foundation; either version 2 79fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamof the License, or (at your option) any later version. 89fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 99fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamThis program is distributed in the hope that it will be useful, 109fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreambut WITHOUT ANY WARRANTY; without even the implied warranty of 119fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 129fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 139fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamSee the GNU General Public License for more details. 149fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 159fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamYou should have received a copy of the GNU General Public License 169fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamalong with this program; if not, write to the Free Software 179fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamFoundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 189fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 199fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 209fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// r_light.c 219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include "quakedef.h" 239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream#include "r_local.h" 249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint r_dlightframecount; 269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================== 309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamR_AnimateLight 319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream================== 329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid R_AnimateLight (void) 349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int i,j,k; 369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// 389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// light animations 399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// 'm' is normal light, 'a' is no light, 'z' is double bright 409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream i = (int)(cl.time*10); 419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (j=0 ; j<MAX_LIGHTSTYLES ; j++) 429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (!cl_lightstyle[j].length) 449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream d_lightstylevalue[j] = 256; 469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream continue; 479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream k = i % cl_lightstyle[j].length; 499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream k = cl_lightstyle[j].map[k] - 'a'; 509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream k = k*22; 519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream d_lightstylevalue[j] = k; 529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============================================================================= 589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamDYNAMIC LIGHTS 609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 619fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============================================================================= 629fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 639fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 649fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 659fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============= 669fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamR_MarkLights 679fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============= 689fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 699fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid R_MarkLights (dlight_t *light, int bit, mnode_t *node) 709fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 719fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream mplane_t *splitplane; 729fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream float dist; 739fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream msurface_t *surf; 749fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int i; 759fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 769fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (node->contents < 0) 779fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return; 789fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 799fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream splitplane = node->plane; 809fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream dist = DotProduct (light->origin, splitplane->normal) - splitplane->dist; 819fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 829fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (dist > light->radius) 839fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 849fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream R_MarkLights (light, bit, node->children[0]); 859fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return; 869fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 879fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (dist < -light->radius) 889fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 899fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream R_MarkLights (light, bit, node->children[1]); 909fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return; 919fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 929fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 939fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// mark the polygons 949fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream surf = cl.worldmodel->surfaces + node->firstsurface; 959fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<node->numsurfaces ; i++, surf++) 969fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 979fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (surf->dlightframe != r_dlightframecount) 989fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 999fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream surf->dlightbits = 0; 1009fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream surf->dlightframe = r_dlightframecount; 1019fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1029fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream surf->dlightbits |= bit; 1039fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1049fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1059fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream R_MarkLights (light, bit, node->children[0]); 1069fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream R_MarkLights (light, bit, node->children[1]); 1079fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 1089fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1099fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1109fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 1119fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============= 1129fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamR_PushDlights 1139fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============= 1149fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 1159fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamvoid R_PushDlights (void) 1169fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 1179fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int i; 1189fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream dlight_t *l; 1199fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1209fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r_dlightframecount = r_framecount + 1; // because the count hasn't 1219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream // advanced yet for this frame 1229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream l = cl_dlights; 1239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<MAX_DLIGHTS ; i++, l++) 1259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (l->die < cl.time || !l->radius) 1279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream continue; 1289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream R_MarkLights ( l, 1<<i, cl.worldmodel->nodes ); 1299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 1309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 1319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream/* 1349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============================================================================= 1359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamLIGHT SAMPLING 1379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream============================================================================= 1399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream*/ 1409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint RecursiveLightPoint (mnode_t *node, vec3_t start, vec3_t end) 1429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 1439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int r; 1449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream float front, back, frac; 1459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int side; 1469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream mplane_t *plane; 1479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream vec3_t mid; 1489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream msurface_t *surf; 1499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int s, t, ds, dt; 1509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int i; 1519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream mtexinfo_t *tex; 1529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream byte *lightmap; 1539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream unsigned scale; 1549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int maps; 1559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (node->contents < 0) 1579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return -1; // didn't hit anything 1589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// calculate mid point 1609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1619fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// FIXME: optimize for axial 1629fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream plane = node->plane; 1639fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream front = DotProduct (start, plane->normal) - plane->dist; 1649fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream back = DotProduct (end, plane->normal) - plane->dist; 1659fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream side = front < 0; 1669fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1679fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if ( (back < 0) == side) 1689fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return RecursiveLightPoint (node->children[side], start, end); 1699fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1709fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream frac = front / (front-back); 1719fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream mid[0] = start[0] + (end[0] - start[0])*frac; 1729fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream mid[1] = start[1] + (end[1] - start[1])*frac; 1739fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream mid[2] = start[2] + (end[2] - start[2])*frac; 1749fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1759fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// go down front side 1769fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r = RecursiveLightPoint (node->children[side], start, mid); 1779fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (r >= 0) 1789fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return r; // hit something 1799fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1809fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if ( (back < 0) == side ) 1819fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return -1; // didn't hit anuthing 1829fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1839fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// check for impact on this node 1849fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1859fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream surf = cl.worldmodel->surfaces + node->firstsurface; 1869fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (i=0 ; i<node->numsurfaces ; i++, surf++) 1879fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 1889fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (surf->flags & SURF_DRAWTILED) 1899fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream continue; // no lightmaps 1909fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1919fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream tex = surf->texinfo; 1929fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1939fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream s = DotProduct (mid, tex->vecs[0]) + tex->vecs[0][3]; 1949fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream t = DotProduct (mid, tex->vecs[1]) + tex->vecs[1][3];; 1959fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 1969fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (s < surf->texturemins[0] || 1979fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream t < surf->texturemins[1]) 1989fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream continue; 1999fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2009fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream ds = s - surf->texturemins[0]; 2019fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream dt = t - surf->texturemins[1]; 2029fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2039fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if ( ds > surf->extents[0] || dt > surf->extents[1] ) 2049fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream continue; 2059fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2069fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (!surf->samples) 2079fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return 0; 2089fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2099fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream ds >>= 4; 2109fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream dt >>= 4; 2119fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2129fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lightmap = surf->samples; 2139fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r = 0; 2149fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (lightmap) 2159fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2169fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2179fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lightmap += dt * ((surf->extents[0]>>4)+1) + ds; 2189fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2199fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream for (maps = 0 ; maps < MAXLIGHTMAPS && surf->styles[maps] != 255 ; 2209fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream maps++) 2219fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream { 2229fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream scale = d_lightstylevalue[surf->styles[maps]]; 2239fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r += *lightmap * scale; 2249fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream lightmap += ((surf->extents[0]>>4)+1) * 2259fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream ((surf->extents[1]>>4)+1); 2269fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2279fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2289fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r >>= 8; 2299fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2309fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2319fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return r; 2329fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream } 2339fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2349fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream// go down back side 2359fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return RecursiveLightPoint (node->children[!side], mid, end); 2369fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 2379fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2389fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstreamint R_LightPoint (vec3_t p) 2399fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream{ 2409fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream vec3_t end; 2419fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream int r; 2429fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2439fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (!cl.worldmodel->lightdata) 2449fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return 255; 2459fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2469fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream end[0] = p[0]; 2479fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream end[1] = p[1]; 2489fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream end[2] = p[2] - 2048; 2499fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2509fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r = RecursiveLightPoint (cl.worldmodel->nodes, p, end); 2519fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2529fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (r == -1) 2539fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r = 0; 2549fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2559fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream if (r < r_refdef.ambientlight) 2569fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream r = r_refdef.ambientlight; 2579fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 2589fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream return r; 2599fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream} 2609fd67c44777b350dc56f3e70c88963b0d966ffc7quake upstream 261