From a8f828a066773a59fdf646299359d35ae0e845af Mon Sep 17 00:00:00 2001 From: wyatt8740 Date: Mon, 6 Jan 2014 12:02:16 -0500 Subject: Removed accidental upload of copyrighted map files --- WinQuake/r_light.c | 520 ++++++++++++++++++++++++++--------------------------- 1 file changed, 260 insertions(+), 260 deletions(-) (limited to 'WinQuake/r_light.c') diff --git a/WinQuake/r_light.c b/WinQuake/r_light.c index f735d50..14350e8 100644 --- a/WinQuake/r_light.c +++ b/WinQuake/r_light.c @@ -1,260 +1,260 @@ -/* -Copyright (C) 1996-1997 Id Software, Inc. - -This program is free software; you can redistribute it and/or -modify it under the terms of the GNU General Public License -as published by the Free Software Foundation; either version 2 -of the License, or (at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - -See the GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - -*/ -// r_light.c - -#include "quakedef.h" -#include "r_local.h" - -int r_dlightframecount; - - -/* -================== -R_AnimateLight -================== -*/ -void R_AnimateLight (void) -{ - int i,j,k; - -// -// light animations -// 'm' is normal light, 'a' is no light, 'z' is double bright - i = (int)(cl.time*10); - for (j=0 ; jcontents < 0) - return; - - splitplane = node->plane; - dist = DotProduct (light->origin, splitplane->normal) - splitplane->dist; - - if (dist > light->radius) - { - R_MarkLights (light, bit, node->children[0]); - return; - } - if (dist < -light->radius) - { - R_MarkLights (light, bit, node->children[1]); - return; - } - -// mark the polygons - surf = cl.worldmodel->surfaces + node->firstsurface; - for (i=0 ; inumsurfaces ; i++, surf++) - { - if (surf->dlightframe != r_dlightframecount) - { - surf->dlightbits = 0; - surf->dlightframe = r_dlightframecount; - } - surf->dlightbits |= bit; - } - - R_MarkLights (light, bit, node->children[0]); - R_MarkLights (light, bit, node->children[1]); -} - - -/* -============= -R_PushDlights -============= -*/ -void R_PushDlights (void) -{ - int i; - dlight_t *l; - - r_dlightframecount = r_framecount + 1; // because the count hasn't - // advanced yet for this frame - l = cl_dlights; - - for (i=0 ; idie < cl.time || !l->radius) - continue; - R_MarkLights ( l, 1<nodes ); - } -} - - -/* -============================================================================= - -LIGHT SAMPLING - -============================================================================= -*/ - -int RecursiveLightPoint (mnode_t *node, vec3_t start, vec3_t end) -{ - int r; - float front, back, frac; - int side; - mplane_t *plane; - vec3_t mid; - msurface_t *surf; - int s, t, ds, dt; - int i; - mtexinfo_t *tex; - byte *lightmap; - unsigned scale; - int maps; - - if (node->contents < 0) - return -1; // didn't hit anything - -// calculate mid point - -// FIXME: optimize for axial - plane = node->plane; - front = DotProduct (start, plane->normal) - plane->dist; - back = DotProduct (end, plane->normal) - plane->dist; - side = front < 0; - - if ( (back < 0) == side) - return RecursiveLightPoint (node->children[side], start, end); - - frac = front / (front-back); - mid[0] = start[0] + (end[0] - start[0])*frac; - mid[1] = start[1] + (end[1] - start[1])*frac; - mid[2] = start[2] + (end[2] - start[2])*frac; - -// go down front side - r = RecursiveLightPoint (node->children[side], start, mid); - if (r >= 0) - return r; // hit something - - if ( (back < 0) == side ) - return -1; // didn't hit anuthing - -// check for impact on this node - - surf = cl.worldmodel->surfaces + node->firstsurface; - for (i=0 ; inumsurfaces ; i++, surf++) - { - if (surf->flags & SURF_DRAWTILED) - continue; // no lightmaps - - tex = surf->texinfo; - - s = DotProduct (mid, tex->vecs[0]) + tex->vecs[0][3]; - t = DotProduct (mid, tex->vecs[1]) + tex->vecs[1][3];; - - if (s < surf->texturemins[0] || - t < surf->texturemins[1]) - continue; - - ds = s - surf->texturemins[0]; - dt = t - surf->texturemins[1]; - - if ( ds > surf->extents[0] || dt > surf->extents[1] ) - continue; - - if (!surf->samples) - return 0; - - ds >>= 4; - dt >>= 4; - - lightmap = surf->samples; - r = 0; - if (lightmap) - { - - lightmap += dt * ((surf->extents[0]>>4)+1) + ds; - - for (maps = 0 ; maps < MAXLIGHTMAPS && surf->styles[maps] != 255 ; - maps++) - { - scale = d_lightstylevalue[surf->styles[maps]]; - r += *lightmap * scale; - lightmap += ((surf->extents[0]>>4)+1) * - ((surf->extents[1]>>4)+1); - } - - r >>= 8; - } - - return r; - } - -// go down back side - return RecursiveLightPoint (node->children[!side], mid, end); -} - -int R_LightPoint (vec3_t p) -{ - vec3_t end; - int r; - - if (!cl.worldmodel->lightdata) - return 255; - - end[0] = p[0]; - end[1] = p[1]; - end[2] = p[2] - 2048; - - r = RecursiveLightPoint (cl.worldmodel->nodes, p, end); - - if (r == -1) - r = 0; - - if (r < r_refdef.ambientlight) - r = r_refdef.ambientlight; - - return r; -} - +/* +Copyright (C) 1996-1997 Id Software, Inc. + +This program is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public License +as published by the Free Software Foundation; either version 2 +of the License, or (at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +*/ +// r_light.c + +#include "quakedef.h" +#include "r_local.h" + +int r_dlightframecount; + + +/* +================== +R_AnimateLight +================== +*/ +void R_AnimateLight (void) +{ + int i,j,k; + +// +// light animations +// 'm' is normal light, 'a' is no light, 'z' is double bright + i = (int)(cl.time*10); + for (j=0 ; jcontents < 0) + return; + + splitplane = node->plane; + dist = DotProduct (light->origin, splitplane->normal) - splitplane->dist; + + if (dist > light->radius) + { + R_MarkLights (light, bit, node->children[0]); + return; + } + if (dist < -light->radius) + { + R_MarkLights (light, bit, node->children[1]); + return; + } + +// mark the polygons + surf = cl.worldmodel->surfaces + node->firstsurface; + for (i=0 ; inumsurfaces ; i++, surf++) + { + if (surf->dlightframe != r_dlightframecount) + { + surf->dlightbits = 0; + surf->dlightframe = r_dlightframecount; + } + surf->dlightbits |= bit; + } + + R_MarkLights (light, bit, node->children[0]); + R_MarkLights (light, bit, node->children[1]); +} + + +/* +============= +R_PushDlights +============= +*/ +void R_PushDlights (void) +{ + int i; + dlight_t *l; + + r_dlightframecount = r_framecount + 1; // because the count hasn't + // advanced yet for this frame + l = cl_dlights; + + for (i=0 ; idie < cl.time || !l->radius) + continue; + R_MarkLights ( l, 1<nodes ); + } +} + + +/* +============================================================================= + +LIGHT SAMPLING + +============================================================================= +*/ + +int RecursiveLightPoint (mnode_t *node, vec3_t start, vec3_t end) +{ + int r; + float front, back, frac; + int side; + mplane_t *plane; + vec3_t mid; + msurface_t *surf; + int s, t, ds, dt; + int i; + mtexinfo_t *tex; + byte *lightmap; + unsigned scale; + int maps; + + if (node->contents < 0) + return -1; // didn't hit anything + +// calculate mid point + +// FIXME: optimize for axial + plane = node->plane; + front = DotProduct (start, plane->normal) - plane->dist; + back = DotProduct (end, plane->normal) - plane->dist; + side = front < 0; + + if ( (back < 0) == side) + return RecursiveLightPoint (node->children[side], start, end); + + frac = front / (front-back); + mid[0] = start[0] + (end[0] - start[0])*frac; + mid[1] = start[1] + (end[1] - start[1])*frac; + mid[2] = start[2] + (end[2] - start[2])*frac; + +// go down front side + r = RecursiveLightPoint (node->children[side], start, mid); + if (r >= 0) + return r; // hit something + + if ( (back < 0) == side ) + return -1; // didn't hit anuthing + +// check for impact on this node + + surf = cl.worldmodel->surfaces + node->firstsurface; + for (i=0 ; inumsurfaces ; i++, surf++) + { + if (surf->flags & SURF_DRAWTILED) + continue; // no lightmaps + + tex = surf->texinfo; + + s = DotProduct (mid, tex->vecs[0]) + tex->vecs[0][3]; + t = DotProduct (mid, tex->vecs[1]) + tex->vecs[1][3];; + + if (s < surf->texturemins[0] || + t < surf->texturemins[1]) + continue; + + ds = s - surf->texturemins[0]; + dt = t - surf->texturemins[1]; + + if ( ds > surf->extents[0] || dt > surf->extents[1] ) + continue; + + if (!surf->samples) + return 0; + + ds >>= 4; + dt >>= 4; + + lightmap = surf->samples; + r = 0; + if (lightmap) + { + + lightmap += dt * ((surf->extents[0]>>4)+1) + ds; + + for (maps = 0 ; maps < MAXLIGHTMAPS && surf->styles[maps] != 255 ; + maps++) + { + scale = d_lightstylevalue[surf->styles[maps]]; + r += *lightmap * scale; + lightmap += ((surf->extents[0]>>4)+1) * + ((surf->extents[1]>>4)+1); + } + + r >>= 8; + } + + return r; + } + +// go down back side + return RecursiveLightPoint (node->children[!side], mid, end); +} + +int R_LightPoint (vec3_t p) +{ + vec3_t end; + int r; + + if (!cl.worldmodel->lightdata) + return 255; + + end[0] = p[0]; + end[1] = p[1]; + end[2] = p[2] - 2048; + + r = RecursiveLightPoint (cl.worldmodel->nodes, p, end); + + if (r == -1) + r = 0; + + if (r < r_refdef.ambientlight) + r = r_refdef.ambientlight; + + return r; +} + -- cgit v1.2.3