mirror of
https://git.code.sf.net/p/quake/quake2forge
synced 2024-11-14 17:01:16 +00:00
1667 lines
34 KiB
C
1667 lines
34 KiB
C
/*
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Copyright (C) 1997-2001 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// GL_RSURF.C: surface-related refresh code
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#include <ctype.h>
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#include <assert.h>
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#include "gl_local.h"
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static vec3_t modelorg; // relative to viewpoint
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msurface_t *r_alpha_surfaces;
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#define DYNAMIC_LIGHT_WIDTH 128
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#define DYNAMIC_LIGHT_HEIGHT 128
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#define LIGHTMAP_BYTES 4
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#define BLOCK_WIDTH 128
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#define BLOCK_HEIGHT 128
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#define MAX_LIGHTMAPS 128
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int c_visible_lightmaps;
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int c_visible_textures;
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#define GL_LIGHTMAP_FORMAT GL_RGBA
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typedef struct
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{
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int internal_format;
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int current_lightmap_texture;
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msurface_t *lightmap_surfaces[MAX_LIGHTMAPS];
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int allocated[BLOCK_WIDTH];
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// the lightmap texture data needs to be kept in
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// main memory so texsubimage can update properly
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byte lightmap_buffer[4*BLOCK_WIDTH*BLOCK_HEIGHT];
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} gllightmapstate_t;
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static gllightmapstate_t gl_lms;
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static void LM_InitBlock( void );
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static void LM_UploadBlock( qboolean dynamic );
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static qboolean LM_AllocBlock (int w, int h, int *x, int *y);
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extern void R_SetCacheState( msurface_t *surf );
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extern void R_BuildLightMap (msurface_t *surf, byte *dest, int stride);
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/*
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=============================================================
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BRUSH MODELS
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=============================================================
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*/
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/*
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===============
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R_TextureAnimation
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Returns the proper texture for a given time and base texture
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===============
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*/
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image_t *R_TextureAnimation (mtexinfo_t *tex)
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{
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int c;
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if (!tex->next)
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return tex->image;
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c = currententity->frame % tex->numframes;
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while (c)
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{
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tex = tex->next;
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c--;
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}
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return tex->image;
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}
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#if 0
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/*
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=================
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WaterWarpPolyVerts
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Mangles the x and y coordinates in a copy of the poly
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so that any drawing routine can be water warped
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=================
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*/
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glpoly_t *WaterWarpPolyVerts (glpoly_t *p)
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{
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int i;
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float *v, *nv;
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static byte buffer[1024];
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glpoly_t *out;
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out = (glpoly_t *)buffer;
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out->numverts = p->numverts;
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v = p->verts[0];
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nv = out->verts[0];
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for (i=0 ; i<p->numverts ; i++, v+= VERTEXSIZE, nv+=VERTEXSIZE)
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{
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nv[0] = v[0] + 4*sin(v[1]*0.05+r_newrefdef.time)*sin(v[2]*0.05+r_newrefdef.time);
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nv[1] = v[1] + 4*sin(v[0]*0.05+r_newrefdef.time)*sin(v[2]*0.05+r_newrefdef.time);
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nv[2] = v[2];
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nv[3] = v[3];
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nv[4] = v[4];
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nv[5] = v[5];
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nv[6] = v[6];
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}
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return out;
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}
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/*
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================
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DrawGLWaterPoly
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Warp the vertex coordinates
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================
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*/
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void DrawGLWaterPoly (glpoly_t *p)
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{
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int i;
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float *v;
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p = WaterWarpPolyVerts (p);
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qglBegin (GL_TRIANGLE_FAN);
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v = p->verts[0];
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for (i=0 ; i<p->numverts ; i++, v+= VERTEXSIZE)
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{
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qglTexCoord2f (v[3], v[4]);
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qglVertex3fv (v);
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}
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qglEnd ();
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}
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void DrawGLWaterPolyLightmap (glpoly_t *p)
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{
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int i;
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float *v;
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p = WaterWarpPolyVerts (p);
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qglBegin (GL_TRIANGLE_FAN);
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v = p->verts[0];
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for (i=0 ; i<p->numverts ; i++, v+= VERTEXSIZE)
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{
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qglTexCoord2f (v[5], v[6]);
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qglVertex3fv (v);
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}
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qglEnd ();
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}
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#endif
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/*
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================
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DrawGLPoly
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================
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*/
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void DrawGLPoly (glpoly_t *p)
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{
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int i;
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float *v;
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qglBegin (GL_POLYGON);
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v = p->verts[0];
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for (i=0 ; i<p->numverts ; i++, v+= VERTEXSIZE)
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{
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qglTexCoord2f (v[3], v[4]);
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qglVertex3fv (v);
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}
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qglEnd ();
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}
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//============
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//PGM
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/*
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================
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DrawGLFlowingPoly -- version of DrawGLPoly that handles scrolling texture
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================
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*/
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void DrawGLFlowingPoly (msurface_t *fa)
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{
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int i;
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float *v;
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glpoly_t *p;
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float scroll;
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p = fa->polys;
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scroll = -64 * ( (r_newrefdef.time / 40.0) - (int)(r_newrefdef.time / 40.0) );
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if(scroll == 0.0)
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scroll = -64.0;
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qglBegin (GL_POLYGON);
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v = p->verts[0];
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for (i=0 ; i<p->numverts ; i++, v+= VERTEXSIZE)
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{
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qglTexCoord2f ((v[3] + scroll), v[4]);
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qglVertex3fv (v);
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}
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qglEnd ();
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}
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//PGM
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//============
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/*
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** R_DrawTriangleOutlines
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*/
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void R_DrawTriangleOutlines (void)
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{
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int i, j;
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glpoly_t *p;
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if (!gl_showtris->value)
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return;
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qglDisable (GL_TEXTURE_2D);
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qglDisable (GL_DEPTH_TEST);
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qglColor4ubv (color_white);
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for (i=0 ; i<MAX_LIGHTMAPS ; i++)
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{
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msurface_t *surf;
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for ( surf = gl_lms.lightmap_surfaces[i]; surf != 0; surf = surf->lightmapchain )
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{
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p = surf->polys;
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for ( ; p ; p=p->chain)
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{
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for (j=2 ; j<p->numverts ; j++ )
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{
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qglBegin (GL_LINE_STRIP);
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qglVertex3fv (p->verts[0]);
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qglVertex3fv (p->verts[j-1]);
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qglVertex3fv (p->verts[j]);
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qglVertex3fv (p->verts[0]);
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qglEnd ();
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}
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}
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}
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}
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qglEnable (GL_DEPTH_TEST);
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qglEnable (GL_TEXTURE_2D);
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}
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/*
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** DrawGLPolyChain
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*/
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void DrawGLPolyChain( glpoly_t *p, float soffset, float toffset )
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{
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if ( soffset == 0 && toffset == 0 )
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{
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for ( ; p != 0; p = p->chain )
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{
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float *v;
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int j;
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qglBegin (GL_POLYGON);
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v = p->verts[0];
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for (j=0 ; j<p->numverts ; j++, v+= VERTEXSIZE)
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{
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qglTexCoord2f (v[5], v[6] );
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qglVertex3fv (v);
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}
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qglEnd ();
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}
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}
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else
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{
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for ( ; p != 0; p = p->chain )
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{
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float *v;
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int j;
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qglBegin (GL_POLYGON);
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v = p->verts[0];
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for (j=0 ; j<p->numverts ; j++, v+= VERTEXSIZE)
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{
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qglTexCoord2f (v[5] - soffset, v[6] - toffset );
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qglVertex3fv (v);
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}
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qglEnd ();
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}
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}
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}
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/*
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** R_BlendLightMaps
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**
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** This routine takes all the given light mapped surfaces in the world and
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** blends them into the framebuffer.
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*/
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void R_BlendLightmaps (void)
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{
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int i;
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msurface_t *surf, *newdrawsurf = 0;
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// don't bother if we're set to fullbright
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if (r_fullbright->value)
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return;
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if (!r_worldmodel->lightdata)
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return;
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// don't bother writing Z
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qglDepthMask( 0 );
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/*
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** set the appropriate blending mode unless we're only looking at the
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** lightmaps.
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*/
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if (!gl_lightmap->value)
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{
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qglEnable (GL_BLEND);
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if ( gl_saturatelighting->value )
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{
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qglBlendFunc( GL_ONE, GL_ONE );
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}
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else
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{
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if ( gl_monolightmap->string[0] != '0' )
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{
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switch ( toupper( gl_monolightmap->string[0] ) )
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{
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case 'I':
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qglBlendFunc (GL_ZERO, GL_SRC_COLOR );
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break;
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case 'L':
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qglBlendFunc (GL_ZERO, GL_SRC_COLOR );
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break;
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case 'A':
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default:
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qglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
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break;
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}
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}
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else
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{
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qglBlendFunc (GL_ZERO, GL_SRC_COLOR );
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}
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}
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}
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if ( currentmodel == r_worldmodel )
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c_visible_lightmaps = 0;
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/*
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** render static lightmaps first
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*/
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for ( i = 1; i < MAX_LIGHTMAPS; i++ )
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{
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if ( gl_lms.lightmap_surfaces[i] )
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{
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if (currentmodel == r_worldmodel)
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c_visible_lightmaps++;
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GL_Bind( gl_state.lightmap_textures + i);
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for ( surf = gl_lms.lightmap_surfaces[i]; surf != 0; surf = surf->lightmapchain )
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{
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if ( surf->polys )
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DrawGLPolyChain( surf->polys, 0, 0 );
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}
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}
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}
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/*
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** render dynamic lightmaps
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*/
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if ( gl_dynamic->value )
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{
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LM_InitBlock();
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GL_Bind( gl_state.lightmap_textures+0 );
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if (currentmodel == r_worldmodel)
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c_visible_lightmaps++;
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newdrawsurf = gl_lms.lightmap_surfaces[0];
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for ( surf = gl_lms.lightmap_surfaces[0]; surf != 0; surf = surf->lightmapchain )
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{
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int smax, tmax;
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byte *base;
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smax = (surf->extents[0]>>4)+1;
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tmax = (surf->extents[1]>>4)+1;
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if ( LM_AllocBlock( smax, tmax, &surf->dlight_s, &surf->dlight_t ) )
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{
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base = gl_lms.lightmap_buffer;
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base += ( surf->dlight_t * BLOCK_WIDTH + surf->dlight_s ) * LIGHTMAP_BYTES;
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R_BuildLightMap (surf, base, BLOCK_WIDTH*LIGHTMAP_BYTES);
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}
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else
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{
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msurface_t *drawsurf;
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// upload what we have so far
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LM_UploadBlock( true );
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// draw all surfaces that use this lightmap
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for ( drawsurf = newdrawsurf; drawsurf != surf; drawsurf = drawsurf->lightmapchain )
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{
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if ( drawsurf->polys )
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DrawGLPolyChain( drawsurf->polys,
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( drawsurf->light_s - drawsurf->dlight_s ) * ( 1.0 / 128.0 ),
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( drawsurf->light_t - drawsurf->dlight_t ) * ( 1.0 / 128.0 ) );
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}
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newdrawsurf = drawsurf;
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// clear the block
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LM_InitBlock();
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// try uploading the block now
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if ( !LM_AllocBlock( smax, tmax, &surf->dlight_s, &surf->dlight_t ) )
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{
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ri.Sys_Error( ERR_FATAL, "Consecutive calls to LM_AllocBlock(%d,%d) failed (dynamic)\n", smax, tmax );
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}
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base = gl_lms.lightmap_buffer;
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base += ( surf->dlight_t * BLOCK_WIDTH + surf->dlight_s ) * LIGHTMAP_BYTES;
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R_BuildLightMap (surf, base, BLOCK_WIDTH*LIGHTMAP_BYTES);
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}
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}
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/*
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** draw remainder of dynamic lightmaps that haven't been uploaded yet
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*/
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if ( newdrawsurf )
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LM_UploadBlock( true );
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for ( surf = newdrawsurf; surf != 0; surf = surf->lightmapchain )
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{
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if ( surf->polys )
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DrawGLPolyChain( surf->polys, ( surf->light_s - surf->dlight_s ) * ( 1.0 / 128.0 ), ( surf->light_t - surf->dlight_t ) * ( 1.0 / 128.0 ) );
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}
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}
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/*
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** restore state
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*/
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qglDisable (GL_BLEND);
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qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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qglDepthMask( 1 );
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}
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|
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/*
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================
|
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R_RenderBrushPoly
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================
|
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*/
|
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void R_RenderBrushPoly (msurface_t *fa)
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{
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int maps;
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image_t *image;
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qboolean is_dynamic = false;
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c_brush_polys++;
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image = R_TextureAnimation (fa->texinfo);
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if (fa->flags & SURF_DRAWTURB)
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{
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GL_Bind( image->texnum );
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// warp texture, no lightmaps
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GL_TexEnv( GL_MODULATE );
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qglColor4f( gl_state.inverse_intensity,
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gl_state.inverse_intensity,
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gl_state.inverse_intensity,
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1.0F );
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EmitWaterPolys (fa);
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GL_TexEnv( GL_REPLACE );
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return;
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}
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else
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{
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GL_Bind( image->texnum );
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GL_TexEnv( GL_REPLACE );
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}
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//======
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//PGM
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if(fa->texinfo->flags & SURF_FLOWING)
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DrawGLFlowingPoly (fa);
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else
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DrawGLPoly (fa->polys);
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//PGM
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//======
|
|
|
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/*
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** check for lightmap modification
|
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*/
|
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for ( maps = 0; maps < MAXLIGHTMAPS && fa->styles[maps] != 255; maps++ )
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{
|
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if ( r_newrefdef.lightstyles[fa->styles[maps]].white != fa->cached_light[maps] )
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goto dynamic;
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}
|
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|
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// dynamic this frame or dynamic previously
|
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if ( ( fa->dlightframe == r_framecount ) )
|
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{
|
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dynamic:
|
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if ( gl_dynamic->value )
|
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{
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if (!( fa->texinfo->flags & (SURF_SKY|SURF_TRANS33|SURF_TRANS66|SURF_WARP ) ) )
|
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{
|
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is_dynamic = true;
|
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}
|
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}
|
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}
|
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|
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if ( is_dynamic )
|
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{
|
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if ( ( fa->styles[maps] >= 32 || fa->styles[maps] == 0 ) && ( fa->dlightframe != r_framecount ) )
|
|
{
|
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unsigned temp[34*34];
|
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int smax, tmax;
|
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|
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smax = (fa->extents[0]>>4)+1;
|
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tmax = (fa->extents[1]>>4)+1;
|
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|
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R_BuildLightMap( fa, (void *)temp, smax*4 );
|
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R_SetCacheState( fa );
|
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|
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GL_Bind( gl_state.lightmap_textures + fa->lightmaptexturenum );
|
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|
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qglTexSubImage2D( GL_TEXTURE_2D, 0,
|
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fa->light_s, fa->light_t,
|
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smax, tmax,
|
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GL_LIGHTMAP_FORMAT,
|
|
GL_UNSIGNED_BYTE, temp );
|
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|
|
fa->lightmapchain = gl_lms.lightmap_surfaces[fa->lightmaptexturenum];
|
|
gl_lms.lightmap_surfaces[fa->lightmaptexturenum] = fa;
|
|
}
|
|
else
|
|
{
|
|
fa->lightmapchain = gl_lms.lightmap_surfaces[0];
|
|
gl_lms.lightmap_surfaces[0] = fa;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
fa->lightmapchain = gl_lms.lightmap_surfaces[fa->lightmaptexturenum];
|
|
gl_lms.lightmap_surfaces[fa->lightmaptexturenum] = fa;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
R_DrawAlphaSurfaces
|
|
|
|
Draw water surfaces and windows.
|
|
The BSP tree is waled front to back, so unwinding the chain
|
|
of alpha_surfaces will draw back to front, giving proper ordering.
|
|
================
|
|
*/
|
|
void R_DrawAlphaSurfaces (void)
|
|
{
|
|
msurface_t *s;
|
|
float intens;
|
|
|
|
//
|
|
// go back to the world matrix
|
|
//
|
|
qglLoadMatrixf (r_world_matrix);
|
|
|
|
qglEnable (GL_BLEND);
|
|
GL_TexEnv( GL_MODULATE );
|
|
|
|
// the textures are prescaled up for a better lighting range,
|
|
// so scale it back down
|
|
intens = gl_state.inverse_intensity;
|
|
|
|
for (s=r_alpha_surfaces ; s ; s=s->texturechain)
|
|
{
|
|
GL_Bind(s->texinfo->image->texnum);
|
|
c_brush_polys++;
|
|
if (s->texinfo->flags & SURF_TRANS33)
|
|
qglColor4f (intens,intens,intens,0.33);
|
|
else if (s->texinfo->flags & SURF_TRANS66)
|
|
qglColor4f (intens,intens,intens,0.66);
|
|
else
|
|
qglColor4f (intens,intens,intens,1);
|
|
if (s->flags & SURF_DRAWTURB)
|
|
EmitWaterPolys (s);
|
|
else if(s->texinfo->flags & SURF_FLOWING) // PGM 9/16/98
|
|
DrawGLFlowingPoly (s); // PGM
|
|
else
|
|
DrawGLPoly (s->polys);
|
|
}
|
|
|
|
GL_TexEnv( GL_REPLACE );
|
|
qglColor4ubv (color_white);
|
|
qglDisable (GL_BLEND);
|
|
|
|
r_alpha_surfaces = NULL;
|
|
}
|
|
|
|
/*
|
|
================
|
|
DrawTextureChains
|
|
================
|
|
*/
|
|
void DrawTextureChains (void)
|
|
{
|
|
int i;
|
|
msurface_t *s;
|
|
image_t *image;
|
|
|
|
c_visible_textures = 0;
|
|
|
|
// GL_TexEnv( GL_REPLACE );
|
|
|
|
if ( !qglSelectTextureSGIS && !qglActiveTextureARB )
|
|
{
|
|
for ( i = 0, image=gltextures ; i<numgltextures ; i++,image++)
|
|
{
|
|
if (!image->registration_sequence)
|
|
continue;
|
|
s = image->texturechain;
|
|
if (!s)
|
|
continue;
|
|
c_visible_textures++;
|
|
|
|
for ( ; s ; s=s->texturechain)
|
|
R_RenderBrushPoly (s);
|
|
|
|
image->texturechain = NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for ( i = 0, image=gltextures ; i<numgltextures ; i++,image++)
|
|
{
|
|
if (!image->registration_sequence)
|
|
continue;
|
|
if (!image->texturechain)
|
|
continue;
|
|
c_visible_textures++;
|
|
|
|
for ( s = image->texturechain; s ; s=s->texturechain)
|
|
{
|
|
if ( !( s->flags & SURF_DRAWTURB ) )
|
|
R_RenderBrushPoly (s);
|
|
}
|
|
}
|
|
|
|
GL_EnableMultitexture( false );
|
|
for ( i = 0, image=gltextures ; i<numgltextures ; i++,image++)
|
|
{
|
|
if (!image->registration_sequence)
|
|
continue;
|
|
s = image->texturechain;
|
|
if (!s)
|
|
continue;
|
|
|
|
for ( ; s ; s=s->texturechain)
|
|
{
|
|
if ( s->flags & SURF_DRAWTURB )
|
|
R_RenderBrushPoly (s);
|
|
}
|
|
|
|
image->texturechain = NULL;
|
|
}
|
|
// GL_EnableMultitexture( true );
|
|
}
|
|
|
|
GL_TexEnv( GL_REPLACE );
|
|
}
|
|
|
|
|
|
static void GL_RenderLightmappedPoly( msurface_t *surf )
|
|
{
|
|
int i, nv = surf->polys->numverts;
|
|
int map;
|
|
float *v;
|
|
image_t *image = R_TextureAnimation( surf->texinfo );
|
|
qboolean is_dynamic = false;
|
|
unsigned lmtex = surf->lightmaptexturenum;
|
|
glpoly_t *p;
|
|
|
|
for ( map = 0; map < MAXLIGHTMAPS && surf->styles[map] != 255; map++ )
|
|
{
|
|
if ( r_newrefdef.lightstyles[surf->styles[map]].white != surf->cached_light[map] )
|
|
goto dynamic;
|
|
}
|
|
|
|
// dynamic this frame or dynamic previously
|
|
if ( ( surf->dlightframe == r_framecount ) )
|
|
{
|
|
dynamic:
|
|
if ( gl_dynamic->value )
|
|
{
|
|
if ( !(surf->texinfo->flags & (SURF_SKY|SURF_TRANS33|SURF_TRANS66|SURF_WARP ) ) )
|
|
{
|
|
is_dynamic = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( is_dynamic )
|
|
{
|
|
unsigned temp[128*128];
|
|
int smax, tmax;
|
|
|
|
if ( ( surf->styles[map] >= 32 || surf->styles[map] == 0 ) && ( surf->dlightframe != r_framecount ) )
|
|
{
|
|
smax = (surf->extents[0]>>4)+1;
|
|
tmax = (surf->extents[1]>>4)+1;
|
|
|
|
R_BuildLightMap( surf, (void *)temp, smax*4 );
|
|
R_SetCacheState( surf );
|
|
|
|
GL_MBind( GL_Texture1, gl_state.lightmap_textures + surf->lightmaptexturenum );
|
|
|
|
lmtex = surf->lightmaptexturenum;
|
|
|
|
qglTexSubImage2D( GL_TEXTURE_2D, 0,
|
|
surf->light_s, surf->light_t,
|
|
smax, tmax,
|
|
GL_LIGHTMAP_FORMAT,
|
|
GL_UNSIGNED_BYTE, temp );
|
|
|
|
}
|
|
else
|
|
{
|
|
smax = (surf->extents[0]>>4)+1;
|
|
tmax = (surf->extents[1]>>4)+1;
|
|
|
|
R_BuildLightMap( surf, (void *)temp, smax*4 );
|
|
|
|
GL_MBind( GL_Texture1, gl_state.lightmap_textures + 0 );
|
|
|
|
lmtex = 0;
|
|
|
|
qglTexSubImage2D( GL_TEXTURE_2D, 0,
|
|
surf->light_s, surf->light_t,
|
|
smax, tmax,
|
|
GL_LIGHTMAP_FORMAT,
|
|
GL_UNSIGNED_BYTE, temp );
|
|
|
|
}
|
|
|
|
c_brush_polys++;
|
|
|
|
GL_MBind( GL_Texture0, image->texnum );
|
|
GL_MBind( GL_Texture1, gl_state.lightmap_textures + lmtex );
|
|
|
|
//==========
|
|
//PGM
|
|
if (surf->texinfo->flags & SURF_FLOWING)
|
|
{
|
|
float scroll;
|
|
|
|
scroll = -64 * ( (r_newrefdef.time / 40.0) - (int)(r_newrefdef.time / 40.0) );
|
|
if(scroll == 0.0)
|
|
scroll = -64.0;
|
|
|
|
for ( p = surf->polys; p; p = p->chain )
|
|
{
|
|
v = p->verts[0];
|
|
qglBegin (GL_POLYGON);
|
|
for (i=0 ; i< nv; i++, v+= VERTEXSIZE)
|
|
{
|
|
qglMTexCoord2fSGIS( GL_Texture0, (v[3]+scroll), v[4]);
|
|
qglMTexCoord2fSGIS( GL_Texture1, v[5], v[6]);
|
|
qglVertex3fv (v);
|
|
}
|
|
qglEnd ();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for ( p = surf->polys; p; p = p->chain )
|
|
{
|
|
v = p->verts[0];
|
|
qglBegin (GL_POLYGON);
|
|
for (i=0 ; i< nv; i++, v+= VERTEXSIZE)
|
|
{
|
|
qglMTexCoord2fSGIS( GL_Texture0, v[3], v[4]);
|
|
qglMTexCoord2fSGIS( GL_Texture1, v[5], v[6]);
|
|
qglVertex3fv (v);
|
|
}
|
|
qglEnd ();
|
|
}
|
|
}
|
|
//PGM
|
|
//==========
|
|
}
|
|
else
|
|
{
|
|
c_brush_polys++;
|
|
|
|
GL_MBind( GL_Texture0, image->texnum );
|
|
GL_MBind( GL_Texture1, gl_state.lightmap_textures + lmtex );
|
|
|
|
//==========
|
|
//PGM
|
|
if (surf->texinfo->flags & SURF_FLOWING)
|
|
{
|
|
float scroll;
|
|
|
|
scroll = -64 * ( (r_newrefdef.time / 40.0) - (int)(r_newrefdef.time / 40.0) );
|
|
if(scroll == 0.0)
|
|
scroll = -64.0;
|
|
|
|
for ( p = surf->polys; p; p = p->chain )
|
|
{
|
|
v = p->verts[0];
|
|
qglBegin (GL_POLYGON);
|
|
for (i=0 ; i< nv; i++, v+= VERTEXSIZE)
|
|
{
|
|
qglMTexCoord2fSGIS( GL_Texture0, (v[3]+scroll), v[4]);
|
|
qglMTexCoord2fSGIS( GL_Texture1, v[5], v[6]);
|
|
qglVertex3fv (v);
|
|
}
|
|
qglEnd ();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//PGM
|
|
//==========
|
|
for ( p = surf->polys; p; p = p->chain )
|
|
{
|
|
v = p->verts[0];
|
|
qglBegin (GL_POLYGON);
|
|
for (i=0 ; i< nv; i++, v+= VERTEXSIZE)
|
|
{
|
|
qglMTexCoord2fSGIS( GL_Texture0, v[3], v[4]);
|
|
qglMTexCoord2fSGIS( GL_Texture1, v[5], v[6]);
|
|
qglVertex3fv (v);
|
|
}
|
|
qglEnd ();
|
|
}
|
|
//==========
|
|
//PGM
|
|
}
|
|
//PGM
|
|
//==========
|
|
}
|
|
}
|
|
|
|
/*
|
|
=================
|
|
R_DrawInlineBModel
|
|
=================
|
|
*/
|
|
void R_DrawInlineBModel (void)
|
|
{
|
|
int i, k;
|
|
cplane_t *pplane;
|
|
float dot;
|
|
msurface_t *psurf;
|
|
dlight_t *lt;
|
|
|
|
// calculate dynamic lighting for bmodel
|
|
if ( !gl_flashblend->value )
|
|
{
|
|
lt = r_newrefdef.dlights;
|
|
for (k=0 ; k<r_newrefdef.num_dlights ; k++, lt++)
|
|
{
|
|
R_MarkLights (lt, 1<<k, currentmodel->nodes + currentmodel->firstnode);
|
|
}
|
|
}
|
|
|
|
psurf = ¤tmodel->surfaces[currentmodel->firstmodelsurface];
|
|
|
|
if ( currententity->flags & RF_TRANSLUCENT )
|
|
{
|
|
qglEnable (GL_BLEND);
|
|
color_white[3] = 64;
|
|
qglColor4ubv (color_white);
|
|
color_white[3] = 255;
|
|
GL_TexEnv( GL_MODULATE );
|
|
}
|
|
|
|
//
|
|
// draw texture
|
|
//
|
|
for (i=0 ; i<currentmodel->nummodelsurfaces ; i++, psurf++)
|
|
{
|
|
// find which side of the node we are on
|
|
pplane = psurf->plane;
|
|
|
|
dot = DotProduct (modelorg, pplane->normal) - pplane->dist;
|
|
|
|
// draw the polygon
|
|
if (((psurf->flags & SURF_PLANEBACK) && (dot < -BACKFACE_EPSILON)) ||
|
|
(!(psurf->flags & SURF_PLANEBACK) && (dot > BACKFACE_EPSILON)))
|
|
{
|
|
if (psurf->texinfo->flags & (SURF_TRANS33|SURF_TRANS66) )
|
|
{ // add to the translucent chain
|
|
psurf->texturechain = r_alpha_surfaces;
|
|
r_alpha_surfaces = psurf;
|
|
}
|
|
else if ( qglMTexCoord2fSGIS && !( psurf->flags & SURF_DRAWTURB ) )
|
|
{
|
|
GL_RenderLightmappedPoly( psurf );
|
|
}
|
|
else
|
|
{
|
|
GL_EnableMultitexture( false );
|
|
R_RenderBrushPoly( psurf );
|
|
GL_EnableMultitexture( true );
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( !(currententity->flags & RF_TRANSLUCENT) )
|
|
{
|
|
if ( !qglMTexCoord2fSGIS )
|
|
R_BlendLightmaps ();
|
|
}
|
|
else
|
|
{
|
|
qglDisable (GL_BLEND);
|
|
qglColor4ubv (color_white);
|
|
GL_TexEnv( GL_REPLACE );
|
|
}
|
|
}
|
|
|
|
/*
|
|
=================
|
|
R_DrawBrushModel
|
|
=================
|
|
*/
|
|
void R_DrawBrushModel (entity_t *e)
|
|
{
|
|
vec3_t mins, maxs;
|
|
int i;
|
|
qboolean rotated;
|
|
|
|
if (currentmodel->nummodelsurfaces == 0)
|
|
return;
|
|
|
|
currententity = e;
|
|
gl_state.currenttextures[0] = gl_state.currenttextures[1] = -1;
|
|
|
|
if (e->angles[0] || e->angles[1] || e->angles[2])
|
|
{
|
|
rotated = true;
|
|
for (i=0 ; i<3 ; i++)
|
|
{
|
|
mins[i] = e->origin[i] - currentmodel->radius;
|
|
maxs[i] = e->origin[i] + currentmodel->radius;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
rotated = false;
|
|
VectorAdd (e->origin, currentmodel->mins, mins);
|
|
VectorAdd (e->origin, currentmodel->maxs, maxs);
|
|
}
|
|
|
|
if (R_CullBox (mins, maxs))
|
|
return;
|
|
|
|
qglColor3ubv (color_white);
|
|
memset (gl_lms.lightmap_surfaces, 0, sizeof(gl_lms.lightmap_surfaces));
|
|
|
|
VectorSubtract (r_newrefdef.vieworg, e->origin, modelorg);
|
|
if (rotated)
|
|
{
|
|
vec3_t temp;
|
|
vec3_t forward, right, up;
|
|
|
|
VectorCopy (modelorg, temp);
|
|
AngleVectors (e->angles, forward, right, up);
|
|
modelorg[0] = DotProduct (temp, forward);
|
|
modelorg[1] = -DotProduct (temp, right);
|
|
modelorg[2] = DotProduct (temp, up);
|
|
}
|
|
|
|
qglPushMatrix ();
|
|
e->angles[0] = -e->angles[0]; // stupid quake bug
|
|
e->angles[2] = -e->angles[2]; // stupid quake bug
|
|
R_RotateForEntity (e);
|
|
e->angles[0] = -e->angles[0]; // stupid quake bug
|
|
e->angles[2] = -e->angles[2]; // stupid quake bug
|
|
|
|
GL_EnableMultitexture( true );
|
|
GL_SelectTexture( GL_Texture0);
|
|
GL_TexEnv( GL_REPLACE );
|
|
GL_SelectTexture( GL_Texture1);
|
|
GL_TexEnv( GL_MODULATE );
|
|
|
|
R_DrawInlineBModel ();
|
|
GL_EnableMultitexture( false );
|
|
|
|
qglPopMatrix ();
|
|
}
|
|
|
|
/*
|
|
=============================================================
|
|
|
|
WORLD MODEL
|
|
|
|
=============================================================
|
|
*/
|
|
|
|
/*
|
|
================
|
|
R_RecursiveWorldNode
|
|
================
|
|
*/
|
|
void R_RecursiveWorldNode (mnode_t *node)
|
|
{
|
|
int c, side, sidebit;
|
|
cplane_t *plane;
|
|
msurface_t *surf, **mark;
|
|
mleaf_t *pleaf;
|
|
float dot;
|
|
image_t *image;
|
|
|
|
if (node->contents == CONTENTS_SOLID)
|
|
return; // solid
|
|
|
|
if (node->visframe != r_visframecount)
|
|
return;
|
|
if (R_CullBox (node->minmaxs, node->minmaxs+3))
|
|
return;
|
|
|
|
// if a leaf node, draw stuff
|
|
if (node->contents != -1)
|
|
{
|
|
pleaf = (mleaf_t *)node;
|
|
|
|
// check for door connected areas
|
|
if (r_newrefdef.areabits)
|
|
{
|
|
if (! (r_newrefdef.areabits[pleaf->area>>3] & (1<<(pleaf->area&7)) ) )
|
|
return; // not visible
|
|
}
|
|
|
|
mark = pleaf->firstmarksurface;
|
|
c = pleaf->nummarksurfaces;
|
|
|
|
if (c)
|
|
{
|
|
do
|
|
{
|
|
(*mark)->visframe = r_framecount;
|
|
mark++;
|
|
} while (--c);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// node is just a decision point, so go down the apropriate sides
|
|
|
|
// find which side of the node we are on
|
|
plane = node->plane;
|
|
|
|
switch (plane->type)
|
|
{
|
|
case PLANE_X:
|
|
dot = modelorg[0] - plane->dist;
|
|
break;
|
|
case PLANE_Y:
|
|
dot = modelorg[1] - plane->dist;
|
|
break;
|
|
case PLANE_Z:
|
|
dot = modelorg[2] - plane->dist;
|
|
break;
|
|
default:
|
|
dot = DotProduct (modelorg, plane->normal) - plane->dist;
|
|
break;
|
|
}
|
|
|
|
if (dot >= 0)
|
|
{
|
|
side = 0;
|
|
sidebit = 0;
|
|
}
|
|
else
|
|
{
|
|
side = 1;
|
|
sidebit = SURF_PLANEBACK;
|
|
}
|
|
|
|
// recurse down the children, front side first
|
|
R_RecursiveWorldNode (node->children[side]);
|
|
|
|
// draw stuff
|
|
for ( c = node->numsurfaces, surf = r_worldmodel->surfaces + node->firstsurface; c ; c--, surf++)
|
|
{
|
|
if (surf->visframe != r_framecount)
|
|
continue;
|
|
|
|
if ( (surf->flags & SURF_PLANEBACK) != sidebit )
|
|
continue; // wrong side
|
|
|
|
if (surf->texinfo->flags & SURF_SKY)
|
|
{ // just adds to visible sky bounds
|
|
R_AddSkySurface (surf);
|
|
}
|
|
else if (surf->texinfo->flags & (SURF_TRANS33|SURF_TRANS66))
|
|
{ // add to the translucent chain
|
|
surf->texturechain = r_alpha_surfaces;
|
|
r_alpha_surfaces = surf;
|
|
}
|
|
else
|
|
{
|
|
if ( qglMTexCoord2fSGIS && !( surf->flags & SURF_DRAWTURB ) )
|
|
{
|
|
GL_RenderLightmappedPoly( surf );
|
|
}
|
|
else
|
|
{
|
|
// the polygon is visible, so add it to the texture
|
|
// sorted chain
|
|
// FIXME: this is a hack for animation
|
|
image = R_TextureAnimation (surf->texinfo);
|
|
surf->texturechain = image->texturechain;
|
|
image->texturechain = surf;
|
|
}
|
|
}
|
|
}
|
|
|
|
// recurse down the back side
|
|
R_RecursiveWorldNode (node->children[!side]);
|
|
/*
|
|
for ( ; c ; c--, surf++)
|
|
{
|
|
if (surf->visframe != r_framecount)
|
|
continue;
|
|
|
|
if ( (surf->flags & SURF_PLANEBACK) != sidebit )
|
|
continue; // wrong side
|
|
|
|
if (surf->texinfo->flags & SURF_SKY)
|
|
{ // just adds to visible sky bounds
|
|
R_AddSkySurface (surf);
|
|
}
|
|
else if (surf->texinfo->flags & (SURF_TRANS33|SURF_TRANS66))
|
|
{ // add to the translucent chain
|
|
// surf->texturechain = alpha_surfaces;
|
|
// alpha_surfaces = surf;
|
|
}
|
|
else
|
|
{
|
|
if ( qglMTexCoord2fSGIS && !( surf->flags & SURF_DRAWTURB ) )
|
|
{
|
|
GL_RenderLightmappedPoly( surf );
|
|
}
|
|
else
|
|
{
|
|
// the polygon is visible, so add it to the texture
|
|
// sorted chain
|
|
// FIXME: this is a hack for animation
|
|
image = R_TextureAnimation (surf->texinfo);
|
|
surf->texturechain = image->texturechain;
|
|
image->texturechain = surf;
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
R_DrawWorld
|
|
=============
|
|
*/
|
|
void R_DrawWorld (void)
|
|
{
|
|
entity_t ent;
|
|
|
|
if (!r_drawworld->value)
|
|
return;
|
|
|
|
if ( r_newrefdef.rdflags & RDF_NOWORLDMODEL )
|
|
return;
|
|
|
|
currentmodel = r_worldmodel;
|
|
|
|
VectorCopy (r_newrefdef.vieworg, modelorg);
|
|
|
|
// auto cycle the world frame for texture animation
|
|
memset (&ent, 0, sizeof(ent));
|
|
ent.frame = (int)(r_newrefdef.time*2);
|
|
currententity = &ent;
|
|
|
|
gl_state.currenttextures[0] = gl_state.currenttextures[1] = -1;
|
|
|
|
qglColor3ubv (color_white);
|
|
memset (gl_lms.lightmap_surfaces, 0, sizeof(gl_lms.lightmap_surfaces));
|
|
R_ClearSkyBox ();
|
|
|
|
if ( qglMTexCoord2fSGIS )
|
|
{
|
|
GL_EnableMultitexture( true );
|
|
|
|
GL_SelectTexture( GL_Texture0);
|
|
GL_TexEnv( GL_REPLACE );
|
|
GL_SelectTexture( GL_Texture1);
|
|
|
|
if ( gl_lightmap->value )
|
|
GL_TexEnv( GL_REPLACE );
|
|
else
|
|
GL_TexEnv( GL_MODULATE );
|
|
|
|
R_RecursiveWorldNode (r_worldmodel->nodes);
|
|
|
|
GL_EnableMultitexture( false );
|
|
}
|
|
else
|
|
{
|
|
R_RecursiveWorldNode (r_worldmodel->nodes);
|
|
}
|
|
|
|
/*
|
|
** theoretically nothing should happen in the next two functions
|
|
** if multitexture is enabled
|
|
*/
|
|
DrawTextureChains ();
|
|
R_BlendLightmaps ();
|
|
|
|
R_DrawSkyBox ();
|
|
|
|
R_DrawTriangleOutlines ();
|
|
}
|
|
|
|
|
|
/*
|
|
===============
|
|
R_MarkLeaves
|
|
|
|
Mark the leaves and nodes that are in the PVS for the current
|
|
cluster
|
|
===============
|
|
*/
|
|
void R_MarkLeaves (void)
|
|
{
|
|
byte *vis;
|
|
byte fatvis[MAX_MAP_LEAFS/8];
|
|
mnode_t *node;
|
|
int i, c;
|
|
mleaf_t *leaf;
|
|
int cluster;
|
|
|
|
if (r_oldviewcluster == r_viewcluster && r_oldviewcluster2 == r_viewcluster2 && !r_novis->value && r_viewcluster != -1)
|
|
return;
|
|
|
|
// development aid to let you run around and see exactly where
|
|
// the pvs ends
|
|
if (gl_lockpvs->value)
|
|
return;
|
|
|
|
r_visframecount++;
|
|
r_oldviewcluster = r_viewcluster;
|
|
r_oldviewcluster2 = r_viewcluster2;
|
|
|
|
if (r_novis->value || r_viewcluster == -1 || !r_worldmodel->vis)
|
|
{
|
|
// mark everything
|
|
for (i=0 ; i<r_worldmodel->numleafs ; i++)
|
|
r_worldmodel->leafs[i].visframe = r_visframecount;
|
|
for (i=0 ; i<r_worldmodel->numnodes ; i++)
|
|
r_worldmodel->nodes[i].visframe = r_visframecount;
|
|
return;
|
|
}
|
|
|
|
vis = Mod_ClusterPVS (r_viewcluster, r_worldmodel);
|
|
// may have to combine two clusters because of solid water boundaries
|
|
if (r_viewcluster2 != r_viewcluster)
|
|
{
|
|
memcpy (fatvis, vis, (r_worldmodel->numleafs+7)/8);
|
|
vis = Mod_ClusterPVS (r_viewcluster2, r_worldmodel);
|
|
c = (r_worldmodel->numleafs+31)/32;
|
|
for (i=0 ; i<c ; i++)
|
|
((int *)fatvis)[i] |= ((int *)vis)[i];
|
|
vis = fatvis;
|
|
}
|
|
|
|
for (i=0,leaf=r_worldmodel->leafs ; i<r_worldmodel->numleafs ; i++, leaf++)
|
|
{
|
|
cluster = leaf->cluster;
|
|
if (cluster == -1)
|
|
continue;
|
|
if (vis[cluster>>3] & (1<<(cluster&7)))
|
|
{
|
|
node = (mnode_t *)leaf;
|
|
do
|
|
{
|
|
if (node->visframe == r_visframecount)
|
|
break;
|
|
node->visframe = r_visframecount;
|
|
node = node->parent;
|
|
} while (node);
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
for (i=0 ; i<r_worldmodel->vis->numclusters ; i++)
|
|
{
|
|
if (vis[i>>3] & (1<<(i&7)))
|
|
{
|
|
node = (mnode_t *)&r_worldmodel->leafs[i]; // FIXME: cluster
|
|
do
|
|
{
|
|
if (node->visframe == r_visframecount)
|
|
break;
|
|
node->visframe = r_visframecount;
|
|
node = node->parent;
|
|
} while (node);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
=============================================================================
|
|
|
|
LIGHTMAP ALLOCATION
|
|
|
|
=============================================================================
|
|
*/
|
|
|
|
static void LM_InitBlock( void )
|
|
{
|
|
memset( gl_lms.allocated, 0, sizeof( gl_lms.allocated ) );
|
|
}
|
|
|
|
static void LM_UploadBlock( qboolean dynamic )
|
|
{
|
|
int texture;
|
|
int height = 0;
|
|
|
|
if ( dynamic )
|
|
{
|
|
texture = 0;
|
|
}
|
|
else
|
|
{
|
|
texture = gl_lms.current_lightmap_texture;
|
|
}
|
|
|
|
GL_Bind( gl_state.lightmap_textures + texture );
|
|
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
|
|
if ( dynamic )
|
|
{
|
|
int i;
|
|
|
|
for ( i = 0; i < BLOCK_WIDTH; i++ )
|
|
{
|
|
if ( gl_lms.allocated[i] > height )
|
|
height = gl_lms.allocated[i];
|
|
}
|
|
|
|
qglTexSubImage2D( GL_TEXTURE_2D,
|
|
0,
|
|
0, 0,
|
|
BLOCK_WIDTH, height,
|
|
GL_LIGHTMAP_FORMAT,
|
|
GL_UNSIGNED_BYTE,
|
|
gl_lms.lightmap_buffer );
|
|
}
|
|
else
|
|
{
|
|
qglTexImage2D( GL_TEXTURE_2D,
|
|
0,
|
|
gl_lms.internal_format,
|
|
BLOCK_WIDTH, BLOCK_HEIGHT,
|
|
0,
|
|
GL_LIGHTMAP_FORMAT,
|
|
GL_UNSIGNED_BYTE,
|
|
gl_lms.lightmap_buffer );
|
|
if ( ++gl_lms.current_lightmap_texture == MAX_LIGHTMAPS )
|
|
ri.Sys_Error( ERR_DROP, "LM_UploadBlock() - MAX_LIGHTMAPS exceeded\n" );
|
|
}
|
|
}
|
|
|
|
// returns a texture number and the position inside it
|
|
static qboolean LM_AllocBlock (int w, int h, int *x, int *y)
|
|
{
|
|
int i, j;
|
|
int best, best2;
|
|
|
|
best = BLOCK_HEIGHT;
|
|
|
|
for (i=0 ; i<BLOCK_WIDTH-w ; i++)
|
|
{
|
|
best2 = 0;
|
|
|
|
for (j=0 ; j<w ; j++)
|
|
{
|
|
if (gl_lms.allocated[i+j] >= best)
|
|
break;
|
|
if (gl_lms.allocated[i+j] > best2)
|
|
best2 = gl_lms.allocated[i+j];
|
|
}
|
|
if (j == w)
|
|
{ // this is a valid spot
|
|
*x = i;
|
|
*y = best = best2;
|
|
}
|
|
}
|
|
|
|
if (best + h > BLOCK_HEIGHT)
|
|
return false;
|
|
|
|
for (i=0 ; i<w ; i++)
|
|
gl_lms.allocated[*x + i] = best + h;
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_BuildPolygonFromSurface
|
|
================
|
|
*/
|
|
void GL_BuildPolygonFromSurface(msurface_t *fa)
|
|
{
|
|
int i, lindex, lnumverts;
|
|
medge_t *pedges, *r_pedge;
|
|
int vertpage;
|
|
float *vec;
|
|
float s, t;
|
|
glpoly_t *poly;
|
|
vec3_t total;
|
|
|
|
// reconstruct the polygon
|
|
pedges = currentmodel->edges;
|
|
lnumverts = fa->numedges;
|
|
vertpage = 0;
|
|
|
|
VectorClear (total);
|
|
//
|
|
// draw texture
|
|
//
|
|
poly = Hunk_Alloc (sizeof(glpoly_t) + (lnumverts-4) * VERTEXSIZE*sizeof(float));
|
|
poly->next = fa->polys;
|
|
poly->flags = fa->flags;
|
|
fa->polys = poly;
|
|
poly->numverts = lnumverts;
|
|
|
|
for (i=0 ; i<lnumverts ; i++)
|
|
{
|
|
lindex = currentmodel->surfedges[fa->firstedge + i];
|
|
|
|
if (lindex > 0)
|
|
{
|
|
r_pedge = &pedges[lindex];
|
|
vec = currentmodel->vertexes[r_pedge->v[0]].position;
|
|
}
|
|
else
|
|
{
|
|
r_pedge = &pedges[-lindex];
|
|
vec = currentmodel->vertexes[r_pedge->v[1]].position;
|
|
}
|
|
s = DotProduct (vec, fa->texinfo->vecs[0]) + fa->texinfo->vecs[0][3];
|
|
s /= fa->texinfo->image->width;
|
|
|
|
t = DotProduct (vec, fa->texinfo->vecs[1]) + fa->texinfo->vecs[1][3];
|
|
t /= fa->texinfo->image->height;
|
|
|
|
VectorAdd (total, vec, total);
|
|
VectorCopy (vec, poly->verts[i]);
|
|
poly->verts[i][3] = s;
|
|
poly->verts[i][4] = t;
|
|
|
|
//
|
|
// lightmap texture coordinates
|
|
//
|
|
s = DotProduct (vec, fa->texinfo->vecs[0]) + fa->texinfo->vecs[0][3];
|
|
s -= fa->texturemins[0];
|
|
s += fa->light_s*16;
|
|
s += 8;
|
|
s /= BLOCK_WIDTH*16; //fa->texinfo->texture->width;
|
|
|
|
t = DotProduct (vec, fa->texinfo->vecs[1]) + fa->texinfo->vecs[1][3];
|
|
t -= fa->texturemins[1];
|
|
t += fa->light_t*16;
|
|
t += 8;
|
|
t /= BLOCK_HEIGHT*16; //fa->texinfo->texture->height;
|
|
|
|
poly->verts[i][5] = s;
|
|
poly->verts[i][6] = t;
|
|
}
|
|
|
|
poly->numverts = lnumverts;
|
|
|
|
}
|
|
|
|
/*
|
|
========================
|
|
GL_CreateSurfaceLightmap
|
|
========================
|
|
*/
|
|
void GL_CreateSurfaceLightmap (msurface_t *surf)
|
|
{
|
|
int smax, tmax;
|
|
byte *base;
|
|
|
|
if (surf->flags & (SURF_DRAWSKY|SURF_DRAWTURB))
|
|
return;
|
|
|
|
smax = (surf->extents[0]>>4)+1;
|
|
tmax = (surf->extents[1]>>4)+1;
|
|
|
|
if ( !LM_AllocBlock( smax, tmax, &surf->light_s, &surf->light_t ) )
|
|
{
|
|
LM_UploadBlock( false );
|
|
LM_InitBlock();
|
|
if ( !LM_AllocBlock( smax, tmax, &surf->light_s, &surf->light_t ) )
|
|
{
|
|
ri.Sys_Error( ERR_FATAL, "Consecutive calls to LM_AllocBlock(%d,%d) failed\n", smax, tmax );
|
|
}
|
|
}
|
|
|
|
surf->lightmaptexturenum = gl_lms.current_lightmap_texture;
|
|
|
|
base = gl_lms.lightmap_buffer;
|
|
base += (surf->light_t * BLOCK_WIDTH + surf->light_s) * LIGHTMAP_BYTES;
|
|
|
|
R_SetCacheState( surf );
|
|
R_BuildLightMap (surf, base, BLOCK_WIDTH*LIGHTMAP_BYTES);
|
|
}
|
|
|
|
|
|
/*
|
|
==================
|
|
GL_BeginBuildingLightmaps
|
|
|
|
==================
|
|
*/
|
|
void GL_BeginBuildingLightmaps (model_t *m)
|
|
{
|
|
static lightstyle_t lightstyles[MAX_LIGHTSTYLES];
|
|
int i;
|
|
unsigned dummy[128*128];
|
|
|
|
memset( gl_lms.allocated, 0, sizeof(gl_lms.allocated) );
|
|
|
|
r_framecount = 1; // no dlightcache
|
|
|
|
GL_EnableMultitexture( true );
|
|
GL_SelectTexture( GL_Texture1);
|
|
|
|
/*
|
|
** setup the base lightstyles so the lightmaps won't have to be regenerated
|
|
** the first time they're seen
|
|
*/
|
|
for (i=0 ; i<MAX_LIGHTSTYLES ; i++)
|
|
{
|
|
lightstyles[i].rgb[0] = 1;
|
|
lightstyles[i].rgb[1] = 1;
|
|
lightstyles[i].rgb[2] = 1;
|
|
lightstyles[i].white = 3;
|
|
}
|
|
r_newrefdef.lightstyles = lightstyles;
|
|
|
|
if (!gl_state.lightmap_textures)
|
|
{
|
|
gl_state.lightmap_textures = TEXNUM_LIGHTMAPS;
|
|
// gl_state.lightmap_textures = gl_state.texture_extension_number;
|
|
// gl_state.texture_extension_number = gl_state.lightmap_textures + MAX_LIGHTMAPS;
|
|
}
|
|
|
|
gl_lms.current_lightmap_texture = 1;
|
|
|
|
/*
|
|
** if mono lightmaps are enabled and we want to use alpha
|
|
** blending (a,1-a) then we're likely running on a 3DLabs
|
|
** Permedia2. In a perfect world we'd use a GL_ALPHA lightmap
|
|
** in order to conserve space and maximize bandwidth, however
|
|
** this isn't a perfect world.
|
|
**
|
|
** So we have to use alpha lightmaps, but stored in GL_RGBA format,
|
|
** which means we only get 1/16th the color resolution we should when
|
|
** using alpha lightmaps. If we find another board that supports
|
|
** only alpha lightmaps but that can at least support the GL_ALPHA
|
|
** format then we should change this code to use real alpha maps.
|
|
*/
|
|
if ( toupper( gl_monolightmap->string[0] ) == 'A' )
|
|
{
|
|
gl_lms.internal_format = gl_tex_alpha_format;
|
|
}
|
|
/*
|
|
** try to do hacked colored lighting with a blended texture
|
|
*/
|
|
else if ( toupper( gl_monolightmap->string[0] ) == 'C' )
|
|
{
|
|
gl_lms.internal_format = gl_tex_alpha_format;
|
|
}
|
|
else if ( toupper( gl_monolightmap->string[0] ) == 'I' )
|
|
{
|
|
gl_lms.internal_format = GL_INTENSITY8;
|
|
}
|
|
else if ( toupper( gl_monolightmap->string[0] ) == 'L' )
|
|
{
|
|
gl_lms.internal_format = GL_LUMINANCE8;
|
|
}
|
|
else
|
|
{
|
|
gl_lms.internal_format = gl_tex_solid_format;
|
|
}
|
|
|
|
/*
|
|
** initialize the dynamic lightmap texture
|
|
*/
|
|
GL_Bind( gl_state.lightmap_textures + 0 );
|
|
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
qglTexImage2D( GL_TEXTURE_2D,
|
|
0,
|
|
gl_lms.internal_format,
|
|
BLOCK_WIDTH, BLOCK_HEIGHT,
|
|
0,
|
|
GL_LIGHTMAP_FORMAT,
|
|
GL_UNSIGNED_BYTE,
|
|
dummy );
|
|
}
|
|
|
|
/*
|
|
=======================
|
|
GL_EndBuildingLightmaps
|
|
=======================
|
|
*/
|
|
void GL_EndBuildingLightmaps (void)
|
|
{
|
|
LM_UploadBlock( false );
|
|
GL_EnableMultitexture( false );
|
|
}
|
|
|