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ioq3/code/renderergl2/tr_bsp.c
Zack Middleton eaefa35580 OpenGL2: Fix merged lightmap hacks to have real lightmap index 
This fixes the texcoord range to be 0.0 to 1.0 for external lightmaps in
shaders that also have an internal lightmap. (Instead of 2.0 to 3.0 for
example.) This only affects clampMap as repeating wrapping sampled the
correct location. I haven't found such a shader but I need to get real
lightmap index for future merged lightmap hacks.
2024-02-10 16:23:54 -05:00

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code 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.
Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
// tr_map.c
#include "tr_local.h"
#define JSON_IMPLEMENTATION
#include "../qcommon/json.h"
#undef JSON_IMPLEMENTATION
/*
Loads and prepares a map file for scene rendering.
A single entry point:
void RE_LoadWorldMap( const char *name );
*/
static world_t s_worldData;
static byte *fileBase;
int c_subdivisions;
int c_gridVerts;
//===============================================================================
static void HSVtoRGB( float h, float s, float v, float rgb[3] )
{
int i;
float f;
float p, q, t;
h *= 5;
i = floor( h );
f = h - i;
p = v * ( 1 - s );
q = v * ( 1 - s * f );
t = v * ( 1 - s * ( 1 - f ) );
switch ( i )
{
case 0:
rgb[0] = v;
rgb[1] = t;
rgb[2] = p;
break;
case 1:
rgb[0] = q;
rgb[1] = v;
rgb[2] = p;
break;
case 2:
rgb[0] = p;
rgb[1] = v;
rgb[2] = t;
break;
case 3:
rgb[0] = p;
rgb[1] = q;
rgb[2] = v;
break;
case 4:
rgb[0] = t;
rgb[1] = p;
rgb[2] = v;
break;
case 5:
rgb[0] = v;
rgb[1] = p;
rgb[2] = q;
break;
}
}
/*
===============
R_ColorShiftLightingBytes
===============
*/
static void R_ColorShiftLightingBytes( byte in[4], byte out[4] ) {
int shift, r, g, b;
// shift the color data based on overbright range
shift = r_mapOverBrightBits->integer - tr.overbrightBits;
// shift the data based on overbright range
r = in[0] << shift;
g = in[1] << shift;
b = in[2] << shift;
// normalize by color instead of saturating to white
if ( ( r | g | b ) > 255 ) {
int max;
max = r > g ? r : g;
max = max > b ? max : b;
r = r * 255 / max;
g = g * 255 / max;
b = b * 255 / max;
}
out[0] = r;
out[1] = g;
out[2] = b;
out[3] = in[3];
}
/*
===============
R_ColorShiftLightingFloats
===============
*/
static void R_ColorShiftLightingFloats(float in[4], float out[4])
{
float r, g, b;
float scale = (1 << (r_mapOverBrightBits->integer - tr.overbrightBits)) / 255.0f;
r = in[0] * scale;
g = in[1] * scale;
b = in[2] * scale;
// normalize by color instead of saturating to white
if ( r > 1 || g > 1 || b > 1 ) {
float max;
max = r > g ? r : g;
max = max > b ? max : b;
r = r / max;
g = g / max;
b = b / max;
}
out[0] = r;
out[1] = g;
out[2] = b;
out[3] = in[3];
}
// Modified from http://graphicrants.blogspot.jp/2009/04/rgbm-color-encoding.html
void ColorToRGBM(const vec3_t color, unsigned char rgbm[4])
{
vec3_t sample;
float maxComponent;
VectorCopy(color, sample);
maxComponent = MAX(sample[0], sample[1]);
maxComponent = MAX(maxComponent, sample[2]);
maxComponent = CLAMP(maxComponent, 1.0f/255.0f, 1.0f);
rgbm[3] = (unsigned char) ceil(maxComponent * 255.0f);
maxComponent = 255.0f / rgbm[3];
VectorScale(sample, maxComponent, sample);
rgbm[0] = (unsigned char) (sample[0] * 255);
rgbm[1] = (unsigned char) (sample[1] * 255);
rgbm[2] = (unsigned char) (sample[2] * 255);
}
void ColorToRGB16(const vec3_t color, uint16_t rgb16[3])
{
rgb16[0] = color[0] * 65535.0f + 0.5f;
rgb16[1] = color[1] * 65535.0f + 0.5f;
rgb16[2] = color[2] * 65535.0f + 0.5f;
}
/*
===============
R_LoadLightmaps
===============
*/
#define DEFAULT_LIGHTMAP_SIZE 128
static void R_LoadLightmaps( lump_t *l, lump_t *surfs ) {
imgFlags_t imgFlags = IMGFLAG_NOLIGHTSCALE | IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE;
byte *buf, *buf_p;
dsurface_t *surf;
int len;
byte *image;
int i, j, numLightmaps, textureInternalFormat = 0;
int numLightmapsPerPage = 16;
float maxIntensity = 0;
double sumIntensity = 0;
len = l->filelen;
if ( !len ) {
return;
}
buf = fileBase + l->fileofs;
// we are about to upload textures
R_IssuePendingRenderCommands();
tr.lightmapSize = DEFAULT_LIGHTMAP_SIZE;
numLightmaps = len / (tr.lightmapSize * tr.lightmapSize * 3);
// check for deluxe mapping
if (numLightmaps <= 1)
{
tr.worldDeluxeMapping = qfalse;
}
else
{
tr.worldDeluxeMapping = qtrue;
for( i = 0, surf = (dsurface_t *)(fileBase + surfs->fileofs);
i < surfs->filelen / sizeof(dsurface_t); i++, surf++ ) {
int lightmapNum = LittleLong( surf->lightmapNum );
if ( lightmapNum >= 0 && (lightmapNum & 1) != 0 ) {
tr.worldDeluxeMapping = qfalse;
break;
}
}
}
image = ri.Malloc(tr.lightmapSize * tr.lightmapSize * 4 * 2);
if (tr.worldDeluxeMapping)
numLightmaps >>= 1;
// Use fat lightmaps of an appropriate size.
if (r_mergeLightmaps->integer)
{
int maxLightmapsPerAxis = glConfig.maxTextureSize / tr.lightmapSize;
int lightmapCols = 4, lightmapRows = 4;
// Increase width at first, then height.
while (lightmapCols * lightmapRows < numLightmaps && lightmapCols != maxLightmapsPerAxis)
lightmapCols <<= 1;
while (lightmapCols * lightmapRows < numLightmaps && lightmapRows != maxLightmapsPerAxis)
lightmapRows <<= 1;
tr.fatLightmapCols = lightmapCols;
tr.fatLightmapRows = lightmapRows;
numLightmapsPerPage = lightmapCols * lightmapRows;
tr.numLightmaps = (numLightmaps + (numLightmapsPerPage - 1)) / numLightmapsPerPage;
}
else
{
tr.numLightmaps = numLightmaps;
}
tr.lightmaps = ri.Hunk_Alloc( tr.numLightmaps * sizeof(image_t *), h_low );
if (tr.worldDeluxeMapping)
tr.deluxemaps = ri.Hunk_Alloc( tr.numLightmaps * sizeof(image_t *), h_low );
textureInternalFormat = GL_RGBA8;
if (r_hdr->integer)
{
// Check for the first hdr lightmap, if it exists, use GL_RGBA16 for textures.
char filename[MAX_QPATH];
Com_sprintf(filename, sizeof(filename), "maps/%s/lm_0000.hdr", s_worldData.baseName);
if (ri.FS_FileExists(filename))
textureInternalFormat = GL_RGBA16;
}
if (r_mergeLightmaps->integer)
{
int width = tr.fatLightmapCols * tr.lightmapSize;
int height = tr.fatLightmapRows * tr.lightmapSize;
for (i = 0; i < tr.numLightmaps; i++)
{
tr.lightmaps[i] = R_CreateImage(va("_fatlightmap%d", i), NULL, width, height, IMGTYPE_COLORALPHA, imgFlags, textureInternalFormat);
if (tr.worldDeluxeMapping)
tr.deluxemaps[i] = R_CreateImage(va("_fatdeluxemap%d", i), NULL, width, height, IMGTYPE_DELUXE, imgFlags, 0);
}
}
for(i = 0; i < numLightmaps; i++)
{
int xoff = 0, yoff = 0;
int lightmapnum = i;
// expand the 24 bit on-disk to 32 bit
if (r_mergeLightmaps->integer)
{
int lightmaponpage = i % numLightmapsPerPage;
xoff = (lightmaponpage % tr.fatLightmapCols) * tr.lightmapSize;
yoff = (lightmaponpage / tr.fatLightmapCols) * tr.lightmapSize;
lightmapnum /= numLightmapsPerPage;
}
// if (tr.worldLightmapping)
{
char filename[MAX_QPATH];
byte *hdrLightmap = NULL;
int size = 0;
// look for hdr lightmaps
if (textureInternalFormat == GL_RGBA16)
{
Com_sprintf( filename, sizeof( filename ), "maps/%s/lm_%04d.hdr", s_worldData.baseName, i * (tr.worldDeluxeMapping ? 2 : 1) );
//ri.Printf(PRINT_ALL, "looking for %s\n", filename);
size = ri.FS_ReadFile(filename, (void **)&hdrLightmap);
}
if (hdrLightmap)
{
byte *p = hdrLightmap, *end = hdrLightmap + size;
//ri.Printf(PRINT_ALL, "found!\n");
/* FIXME: don't just skip over this header and actually parse it */
while (p < end && !(*p == '\n' && *(p+1) == '\n'))
p++;
p += 2;
while (p < end && !(*p == '\n'))
p++;
p++;
if (p >= end)
ri.Error(ERR_DROP, "Bad header for %s!", filename);
buf_p = p;
#if 0 // HDRFILE_RGBE
if ((int)(end - hdrLightmap) != tr.lightmapSize * tr.lightmapSize * 4)
ri.Error(ERR_DROP, "Bad size for %s (%i)!", filename, size);
#else // HDRFILE_FLOAT
if ((int)(end - hdrLightmap) != tr.lightmapSize * tr.lightmapSize * 12)
ri.Error(ERR_DROP, "Bad size for %s (%i)!", filename, size);
#endif
}
else
{
int imgOffset = tr.worldDeluxeMapping ? i * 2 : i;
buf_p = buf + imgOffset * tr.lightmapSize * tr.lightmapSize * 3;
}
for ( j = 0 ; j < tr.lightmapSize * tr.lightmapSize; j++ )
{
if (hdrLightmap)
{
vec4_t color;
#if 0 // HDRFILE_RGBE
float exponent = exp2(buf_p[j*4+3] - 128);
color[0] = buf_p[j*4+0] * exponent;
color[1] = buf_p[j*4+1] * exponent;
color[2] = buf_p[j*4+2] * exponent;
#else // HDRFILE_FLOAT
memcpy(color, &buf_p[j*12], 12);
color[0] = LittleFloat(color[0]);
color[1] = LittleFloat(color[1]);
color[2] = LittleFloat(color[2]);
#endif
color[3] = 1.0f;
R_ColorShiftLightingFloats(color, color);
ColorToRGB16(color, (uint16_t *)(&image[j * 8]));
((uint16_t *)(&image[j * 8]))[3] = 65535;
}
else if (textureInternalFormat == GL_RGBA16)
{
vec4_t color;
//hack: convert LDR lightmap to HDR one
color[0] = MAX(buf_p[j*3+0], 0.499f);
color[1] = MAX(buf_p[j*3+1], 0.499f);
color[2] = MAX(buf_p[j*3+2], 0.499f);
// if under an arbitrary value (say 12) grey it out
// this prevents weird splotches in dimly lit areas
if (color[0] + color[1] + color[2] < 12.0f)
{
float avg = (color[0] + color[1] + color[2]) * 0.3333f;
color[0] = avg;
color[1] = avg;
color[2] = avg;
}
color[3] = 1.0f;
R_ColorShiftLightingFloats(color, color);
ColorToRGB16(color, (uint16_t *)(&image[j * 8]));
((uint16_t *)(&image[j * 8]))[3] = 65535;
}
else
{
if ( r_lightmap->integer == 2 )
{ // color code by intensity as development tool (FIXME: check range)
float r = buf_p[j*3+0];
float g = buf_p[j*3+1];
float b = buf_p[j*3+2];
float intensity;
float out[3] = {0.0, 0.0, 0.0};
intensity = 0.33f * r + 0.685f * g + 0.063f * b;
if ( intensity > 255 )
intensity = 1.0f;
else
intensity /= 255.0f;
if ( intensity > maxIntensity )
maxIntensity = intensity;
HSVtoRGB( intensity, 1.00, 0.50, out );
image[j*4+0] = out[0] * 255;
image[j*4+1] = out[1] * 255;
image[j*4+2] = out[2] * 255;
image[j*4+3] = 255;
sumIntensity += intensity;
}
else
{
R_ColorShiftLightingBytes( &buf_p[j*3], &image[j*4] );
image[j*4+3] = 255;
}
}
}
if (r_mergeLightmaps->integer)
R_UpdateSubImage(tr.lightmaps[lightmapnum], image, xoff, yoff, tr.lightmapSize, tr.lightmapSize, textureInternalFormat);
else
tr.lightmaps[i] = R_CreateImage(va("*lightmap%d", i), image, tr.lightmapSize, tr.lightmapSize, IMGTYPE_COLORALPHA, imgFlags, textureInternalFormat );
if (hdrLightmap)
ri.FS_FreeFile(hdrLightmap);
}
if (tr.worldDeluxeMapping)
{
buf_p = buf + (i * 2 + 1) * tr.lightmapSize * tr.lightmapSize * 3;
for ( j = 0 ; j < tr.lightmapSize * tr.lightmapSize; j++ ) {
image[j*4+0] = buf_p[j*3+0];
image[j*4+1] = buf_p[j*3+1];
image[j*4+2] = buf_p[j*3+2];
// make 0,0,0 into 127,127,127
if ((image[j*4+0] == 0) && (image[j*4+1] == 0) && (image[j*4+2] == 0))
{
image[j*4+0] =
image[j*4+1] =
image[j*4+2] = 127;
}
image[j*4+3] = 255;
}
if (r_mergeLightmaps->integer)
R_UpdateSubImage(tr.deluxemaps[lightmapnum], image, xoff, yoff, tr.lightmapSize, tr.lightmapSize, GL_RGBA8 );
else
tr.deluxemaps[i] = R_CreateImage(va("*deluxemap%d", i), image, tr.lightmapSize, tr.lightmapSize, IMGTYPE_DELUXE, imgFlags, 0 );
}
}
if ( r_lightmap->integer == 2 ) {
ri.Printf( PRINT_ALL, "Brightest lightmap value: %d\n", ( int ) ( maxIntensity * 255 ) );
}
ri.Free(image);
}
// If FatPackU() or FatPackV() changes, update FixFatLightmapTexCoords()
static float FatPackU(float input, int lightmapnum)
{
if (lightmapnum < 0)
return input;
if (tr.worldDeluxeMapping)
lightmapnum >>= 1;
if (tr.fatLightmapCols > 0)
{
lightmapnum %= (tr.fatLightmapCols * tr.fatLightmapRows);
return (input + (lightmapnum % tr.fatLightmapCols)) / (float)(tr.fatLightmapCols);
}
return input;
}
static float FatPackV(float input, int lightmapnum)
{
if (lightmapnum < 0)
return input;
if (tr.worldDeluxeMapping)
lightmapnum >>= 1;
if (tr.fatLightmapCols > 0)
{
lightmapnum %= (tr.fatLightmapCols * tr.fatLightmapRows);
return (input + (lightmapnum / tr.fatLightmapCols)) / (float)(tr.fatLightmapRows);
}
return input;
}
static int FatLightmap(int lightmapnum)
{
if (lightmapnum < 0)
return lightmapnum;
if (tr.worldDeluxeMapping)
lightmapnum >>= 1;
if (tr.fatLightmapCols > 0)
return lightmapnum / (tr.fatLightmapCols * tr.fatLightmapRows);
return lightmapnum;
}
/*
=================
RE_SetWorldVisData
This is called by the clipmodel subsystem so we can share the 1.8 megs of
space in big maps...
=================
*/
void RE_SetWorldVisData( const byte *vis ) {
tr.externalVisData = vis;
}
/*
=================
R_LoadVisibility
=================
*/
static void R_LoadVisibility( lump_t *l ) {
int len;
byte *buf;
len = l->filelen;
if ( !len ) {
return;
}
buf = fileBase + l->fileofs;
s_worldData.numClusters = LittleLong( ((int *)buf)[0] );
s_worldData.clusterBytes = LittleLong( ((int *)buf)[1] );
// CM_Load should have given us the vis data to share, so
// we don't need to allocate another copy
if ( tr.externalVisData ) {
s_worldData.vis = tr.externalVisData;
} else {
byte *dest;
dest = ri.Hunk_Alloc( len - 8, h_low );
Com_Memcpy( dest, buf + 8, len - 8 );
s_worldData.vis = dest;
}
}
//===============================================================================
/*
===============
ShaderForShaderNum
===============
*/
static shader_t *ShaderForShaderNum( int shaderNum, int lightmapNum ) {
shader_t *shader;
dshader_t *dsh;
int _shaderNum = LittleLong( shaderNum );
if ( _shaderNum < 0 || _shaderNum >= s_worldData.numShaders ) {
ri.Error( ERR_DROP, "ShaderForShaderNum: bad num %i", _shaderNum );
}
dsh = &s_worldData.shaders[ _shaderNum ];
if ( r_vertexLight->integer || glConfig.hardwareType == GLHW_PERMEDIA2 ) {
lightmapNum = LIGHTMAP_BY_VERTEX;
}
if ( r_fullbright->integer ) {
lightmapNum = LIGHTMAP_WHITEIMAGE;
}
shader = R_FindShaderEx( dsh->shader, FatLightmap( lightmapNum ), qtrue, lightmapNum );
// if the shader had errors, just use default shader
if ( shader->defaultShader ) {
return tr.defaultShader;
}
return shader;
}
void LoadDrawVertToSrfVert(srfVert_t *s, drawVert_t *d, int realLightmapNum, float hdrVertColors[3], vec3_t *bounds)
{
vec4_t v;
s->xyz[0] = LittleFloat(d->xyz[0]);
s->xyz[1] = LittleFloat(d->xyz[1]);
s->xyz[2] = LittleFloat(d->xyz[2]);
if (bounds)
AddPointToBounds(s->xyz, bounds[0], bounds[1]);
s->st[0] = LittleFloat(d->st[0]);
s->st[1] = LittleFloat(d->st[1]);
if (realLightmapNum >= 0)
{
s->lightmap[0] = FatPackU(LittleFloat(d->lightmap[0]), realLightmapNum);
s->lightmap[1] = FatPackV(LittleFloat(d->lightmap[1]), realLightmapNum);
}
else
{
s->lightmap[0] = LittleFloat(d->lightmap[0]);
s->lightmap[1] = LittleFloat(d->lightmap[1]);
}
v[0] = LittleFloat(d->normal[0]);
v[1] = LittleFloat(d->normal[1]);
v[2] = LittleFloat(d->normal[2]);
R_VaoPackNormal(s->normal, v);
if (hdrVertColors)
{
v[0] = hdrVertColors[0];
v[1] = hdrVertColors[1];
v[2] = hdrVertColors[2];
}
else
{
//hack: convert LDR vertex colors to HDR
if (r_hdr->integer)
{
v[0] = MAX(d->color[0], 0.499f);
v[1] = MAX(d->color[1], 0.499f);
v[2] = MAX(d->color[2], 0.499f);
}
else
{
v[0] = d->color[0];
v[1] = d->color[1];
v[2] = d->color[2];
}
}
v[3] = d->color[3] / 255.0f;
R_ColorShiftLightingFloats(v, v);
R_VaoPackColor(s->color, v);
}
/*
===============
ParseFace
===============
*/
static void ParseFace( dsurface_t *ds, drawVert_t *verts, float *hdrVertColors, msurface_t *surf, int *indexes ) {
int i, j;
srfBspSurface_t *cv;
glIndex_t *tri;
int numVerts, numIndexes, badTriangles;
int realLightmapNum;
realLightmapNum = LittleLong( ds->lightmapNum );
// get fog volume
surf->fogIndex = LittleLong( ds->fogNum ) + 1;
// get shader value
surf->shader = ShaderForShaderNum( ds->shaderNum, realLightmapNum );
if ( r_singleShader->integer && !surf->shader->isSky ) {
surf->shader = tr.defaultShader;
}
numVerts = LittleLong(ds->numVerts);
if (numVerts > MAX_FACE_POINTS) {
ri.Printf( PRINT_WARNING, "WARNING: MAX_FACE_POINTS exceeded: %i\n", numVerts);
numVerts = MAX_FACE_POINTS;
surf->shader = tr.defaultShader;
}
numIndexes = LittleLong(ds->numIndexes);
//cv = ri.Hunk_Alloc(sizeof(*cv), h_low);
cv = (void *)surf->data;
cv->surfaceType = SF_FACE;
cv->numIndexes = numIndexes;
cv->indexes = ri.Hunk_Alloc(numIndexes * sizeof(cv->indexes[0]), h_low);
cv->numVerts = numVerts;
cv->verts = ri.Hunk_Alloc(numVerts * sizeof(cv->verts[0]), h_low);
// copy vertexes
surf->cullinfo.type = CULLINFO_PLANE | CULLINFO_BOX;
ClearBounds(surf->cullinfo.bounds[0], surf->cullinfo.bounds[1]);
verts += LittleLong(ds->firstVert);
for(i = 0; i < numVerts; i++)
LoadDrawVertToSrfVert(&cv->verts[i], &verts[i], realLightmapNum, hdrVertColors ? hdrVertColors + (ds->firstVert + i) * 3 : NULL, surf->cullinfo.bounds);
// copy triangles
badTriangles = 0;
indexes += LittleLong(ds->firstIndex);
for(i = 0, tri = cv->indexes; i < numIndexes; i += 3, tri += 3)
{
for(j = 0; j < 3; j++)
{
tri[j] = LittleLong(indexes[i + j]);
if(tri[j] >= numVerts)
{
ri.Error(ERR_DROP, "Bad index in face surface");
}
}
if ((tri[0] == tri[1]) || (tri[1] == tri[2]) || (tri[0] == tri[2]))
{
tri -= 3;
badTriangles++;
}
}
if (badTriangles)
{
ri.Printf(PRINT_WARNING, "Face has bad triangles, originally shader %s %d tris %d verts, now %d tris\n", surf->shader->name, numIndexes / 3, numVerts, numIndexes / 3 - badTriangles);
cv->numIndexes -= badTriangles * 3;
}
// take the plane information from the lightmap vector
for ( i = 0 ; i < 3 ; i++ ) {
cv->cullPlane.normal[i] = LittleFloat( ds->lightmapVecs[2][i] );
}
cv->cullPlane.dist = DotProduct( cv->verts[0].xyz, cv->cullPlane.normal );
SetPlaneSignbits( &cv->cullPlane );
cv->cullPlane.type = PlaneTypeForNormal( cv->cullPlane.normal );
surf->cullinfo.plane = cv->cullPlane;
surf->data = (surfaceType_t *)cv;
// Calculate tangent spaces
{
srfVert_t *dv[3];
for(i = 0, tri = cv->indexes; i < numIndexes; i += 3, tri += 3)
{
dv[0] = &cv->verts[tri[0]];
dv[1] = &cv->verts[tri[1]];
dv[2] = &cv->verts[tri[2]];
R_CalcTangentVectors(dv);
}
}
}
/*
===============
ParseMesh
===============
*/
static void ParseMesh ( dsurface_t *ds, drawVert_t *verts, float *hdrVertColors, msurface_t *surf ) {
srfBspSurface_t *grid = (srfBspSurface_t *)surf->data;
int i;
int width, height, numPoints;
srfVert_t points[MAX_PATCH_SIZE*MAX_PATCH_SIZE];
vec3_t bounds[2];
vec3_t tmpVec;
static surfaceType_t skipData = SF_SKIP;
int realLightmapNum;
realLightmapNum = LittleLong( ds->lightmapNum );
// get fog volume
surf->fogIndex = LittleLong( ds->fogNum ) + 1;
// get shader value
surf->shader = ShaderForShaderNum( ds->shaderNum, realLightmapNum );
if ( r_singleShader->integer && !surf->shader->isSky ) {
surf->shader = tr.defaultShader;
}
// we may have a nodraw surface, because they might still need to
// be around for movement clipping
if ( s_worldData.shaders[ LittleLong( ds->shaderNum ) ].surfaceFlags & SURF_NODRAW ) {
surf->data = &skipData;
return;
}
width = LittleLong( ds->patchWidth );
height = LittleLong( ds->patchHeight );
if(width < 0 || width > MAX_PATCH_SIZE || height < 0 || height > MAX_PATCH_SIZE)
ri.Error(ERR_DROP, "ParseMesh: bad size");
verts += LittleLong( ds->firstVert );
numPoints = width * height;
for(i = 0; i < numPoints; i++)
LoadDrawVertToSrfVert(&points[i], &verts[i], realLightmapNum, hdrVertColors ? hdrVertColors + (ds->firstVert + i) * 3 : NULL, NULL);
// pre-tesseleate
R_SubdividePatchToGrid( grid, width, height, points );
// copy the level of detail origin, which is the center
// of the group of all curves that must subdivide the same
// to avoid cracking
for ( i = 0 ; i < 3 ; i++ ) {
bounds[0][i] = LittleFloat( ds->lightmapVecs[0][i] );
bounds[1][i] = LittleFloat( ds->lightmapVecs[1][i] );
}
VectorAdd( bounds[0], bounds[1], bounds[1] );
VectorScale( bounds[1], 0.5f, grid->lodOrigin );
VectorSubtract( bounds[0], grid->lodOrigin, tmpVec );
grid->lodRadius = VectorLength( tmpVec );
surf->cullinfo.type = CULLINFO_BOX | CULLINFO_SPHERE;
VectorCopy(grid->cullBounds[0], surf->cullinfo.bounds[0]);
VectorCopy(grid->cullBounds[1], surf->cullinfo.bounds[1]);
VectorCopy(grid->cullOrigin, surf->cullinfo.localOrigin);
surf->cullinfo.radius = grid->cullRadius;
}
/*
===============
ParseTriSurf
===============
*/
static void ParseTriSurf( dsurface_t *ds, drawVert_t *verts, float *hdrVertColors, msurface_t *surf, int *indexes ) {
srfBspSurface_t *cv;
glIndex_t *tri;
int i, j;
int numVerts, numIndexes, badTriangles;
// get fog volume
surf->fogIndex = LittleLong( ds->fogNum ) + 1;
// get shader
surf->shader = ShaderForShaderNum( ds->shaderNum, LIGHTMAP_BY_VERTEX );
if ( r_singleShader->integer && !surf->shader->isSky ) {
surf->shader = tr.defaultShader;
}
numVerts = LittleLong(ds->numVerts);
numIndexes = LittleLong(ds->numIndexes);
//cv = ri.Hunk_Alloc(sizeof(*cv), h_low);
cv = (void *)surf->data;
cv->surfaceType = SF_TRIANGLES;
cv->numIndexes = numIndexes;
cv->indexes = ri.Hunk_Alloc(numIndexes * sizeof(cv->indexes[0]), h_low);
cv->numVerts = numVerts;
cv->verts = ri.Hunk_Alloc(numVerts * sizeof(cv->verts[0]), h_low);
surf->data = (surfaceType_t *) cv;
// copy vertexes
surf->cullinfo.type = CULLINFO_BOX;
ClearBounds(surf->cullinfo.bounds[0], surf->cullinfo.bounds[1]);
verts += LittleLong(ds->firstVert);
for(i = 0; i < numVerts; i++)
LoadDrawVertToSrfVert(&cv->verts[i], &verts[i], -1, hdrVertColors ? hdrVertColors + (ds->firstVert + i) * 3 : NULL, surf->cullinfo.bounds);
// copy triangles
badTriangles = 0;
indexes += LittleLong(ds->firstIndex);
for(i = 0, tri = cv->indexes; i < numIndexes; i += 3, tri += 3)
{
for(j = 0; j < 3; j++)
{
tri[j] = LittleLong(indexes[i + j]);
if(tri[j] >= numVerts)
{
ri.Error(ERR_DROP, "Bad index in face surface");
}
}
if ((tri[0] == tri[1]) || (tri[1] == tri[2]) || (tri[0] == tri[2]))
{
tri -= 3;
badTriangles++;
}
}
if (badTriangles)
{
ri.Printf(PRINT_WARNING, "Trisurf has bad triangles, originally shader %s %d tris %d verts, now %d tris\n", surf->shader->name, numIndexes / 3, numVerts, numIndexes / 3 - badTriangles);
cv->numIndexes -= badTriangles * 3;
}
// Calculate tangent spaces
{
srfVert_t *dv[3];
for(i = 0, tri = cv->indexes; i < numIndexes; i += 3, tri += 3)
{
dv[0] = &cv->verts[tri[0]];
dv[1] = &cv->verts[tri[1]];
dv[2] = &cv->verts[tri[2]];
R_CalcTangentVectors(dv);
}
}
}
/*
===============
ParseFlare
===============
*/
static void ParseFlare( dsurface_t *ds, drawVert_t *verts, msurface_t *surf, int *indexes ) {
srfFlare_t *flare;
int i;
// get fog volume
surf->fogIndex = LittleLong( ds->fogNum ) + 1;
// get shader
surf->shader = ShaderForShaderNum( ds->shaderNum, LIGHTMAP_BY_VERTEX );
if ( r_singleShader->integer && !surf->shader->isSky ) {
surf->shader = tr.defaultShader;
}
//flare = ri.Hunk_Alloc( sizeof( *flare ), h_low );
flare = (void *)surf->data;
flare->surfaceType = SF_FLARE;
surf->data = (surfaceType_t *)flare;
for ( i = 0 ; i < 3 ; i++ ) {
flare->origin[i] = LittleFloat( ds->lightmapOrigin[i] );
flare->color[i] = LittleFloat( ds->lightmapVecs[0][i] );
flare->normal[i] = LittleFloat( ds->lightmapVecs[2][i] );
}
surf->cullinfo.type = CULLINFO_NONE;
}
/*
=================
R_MergedWidthPoints
returns true if there are grid points merged on a width edge
=================
*/
int R_MergedWidthPoints(srfBspSurface_t *grid, int offset) {
int i, j;
for (i = 1; i < grid->width-1; i++) {
for (j = i + 1; j < grid->width-1; j++) {
if ( fabs(grid->verts[i + offset].xyz[0] - grid->verts[j + offset].xyz[0]) > .1) continue;
if ( fabs(grid->verts[i + offset].xyz[1] - grid->verts[j + offset].xyz[1]) > .1) continue;
if ( fabs(grid->verts[i + offset].xyz[2] - grid->verts[j + offset].xyz[2]) > .1) continue;
return qtrue;
}
}
return qfalse;
}
/*
=================
R_MergedHeightPoints
returns true if there are grid points merged on a height edge
=================
*/
int R_MergedHeightPoints(srfBspSurface_t *grid, int offset) {
int i, j;
for (i = 1; i < grid->height-1; i++) {
for (j = i + 1; j < grid->height-1; j++) {
if ( fabs(grid->verts[grid->width * i + offset].xyz[0] - grid->verts[grid->width * j + offset].xyz[0]) > .1) continue;
if ( fabs(grid->verts[grid->width * i + offset].xyz[1] - grid->verts[grid->width * j + offset].xyz[1]) > .1) continue;
if ( fabs(grid->verts[grid->width * i + offset].xyz[2] - grid->verts[grid->width * j + offset].xyz[2]) > .1) continue;
return qtrue;
}
}
return qfalse;
}
/*
=================
R_FixSharedVertexLodError_r
NOTE: never sync LoD through grid edges with merged points!
FIXME: write generalized version that also avoids cracks between a patch and one that meets half way?
=================
*/
void R_FixSharedVertexLodError_r( int start, srfBspSurface_t *grid1 ) {
int j, k, l, m, n, offset1, offset2, touch;
srfBspSurface_t *grid2;
for ( j = start; j < s_worldData.numsurfaces; j++ ) {
//
grid2 = (srfBspSurface_t *) s_worldData.surfaces[j].data;
// if this surface is not a grid
if ( grid2->surfaceType != SF_GRID ) continue;
// if the LOD errors are already fixed for this patch
if ( grid2->lodFixed == 2 ) continue;
// grids in the same LOD group should have the exact same lod radius
if ( grid1->lodRadius != grid2->lodRadius ) continue;
// grids in the same LOD group should have the exact same lod origin
if ( grid1->lodOrigin[0] != grid2->lodOrigin[0] ) continue;
if ( grid1->lodOrigin[1] != grid2->lodOrigin[1] ) continue;
if ( grid1->lodOrigin[2] != grid2->lodOrigin[2] ) continue;
//
touch = qfalse;
for (n = 0; n < 2; n++) {
//
if (n) offset1 = (grid1->height-1) * grid1->width;
else offset1 = 0;
if (R_MergedWidthPoints(grid1, offset1)) continue;
for (k = 1; k < grid1->width-1; k++) {
for (m = 0; m < 2; m++) {
if (m) offset2 = (grid2->height-1) * grid2->width;
else offset2 = 0;
if (R_MergedWidthPoints(grid2, offset2)) continue;
for ( l = 1; l < grid2->width-1; l++) {
//
if ( fabs(grid1->verts[k + offset1].xyz[0] - grid2->verts[l + offset2].xyz[0]) > .1) continue;
if ( fabs(grid1->verts[k + offset1].xyz[1] - grid2->verts[l + offset2].xyz[1]) > .1) continue;
if ( fabs(grid1->verts[k + offset1].xyz[2] - grid2->verts[l + offset2].xyz[2]) > .1) continue;
// ok the points are equal and should have the same lod error
grid2->widthLodError[l] = grid1->widthLodError[k];
touch = qtrue;
}
}
for (m = 0; m < 2; m++) {
if (m) offset2 = grid2->width-1;
else offset2 = 0;
if (R_MergedHeightPoints(grid2, offset2)) continue;
for ( l = 1; l < grid2->height-1; l++) {
//
if ( fabs(grid1->verts[k + offset1].xyz[0] - grid2->verts[grid2->width * l + offset2].xyz[0]) > .1) continue;
if ( fabs(grid1->verts[k + offset1].xyz[1] - grid2->verts[grid2->width * l + offset2].xyz[1]) > .1) continue;
if ( fabs(grid1->verts[k + offset1].xyz[2] - grid2->verts[grid2->width * l + offset2].xyz[2]) > .1) continue;
// ok the points are equal and should have the same lod error
grid2->heightLodError[l] = grid1->widthLodError[k];
touch = qtrue;
}
}
}
}
for (n = 0; n < 2; n++) {
//
if (n) offset1 = grid1->width-1;
else offset1 = 0;
if (R_MergedHeightPoints(grid1, offset1)) continue;
for (k = 1; k < grid1->height-1; k++) {
for (m = 0; m < 2; m++) {
if (m) offset2 = (grid2->height-1) * grid2->width;
else offset2 = 0;
if (R_MergedWidthPoints(grid2, offset2)) continue;
for ( l = 1; l < grid2->width-1; l++) {
//
if ( fabs(grid1->verts[grid1->width * k + offset1].xyz[0] - grid2->verts[l + offset2].xyz[0]) > .1) continue;
if ( fabs(grid1->verts[grid1->width * k + offset1].xyz[1] - grid2->verts[l + offset2].xyz[1]) > .1) continue;
if ( fabs(grid1->verts[grid1->width * k + offset1].xyz[2] - grid2->verts[l + offset2].xyz[2]) > .1) continue;
// ok the points are equal and should have the same lod error
grid2->widthLodError[l] = grid1->heightLodError[k];
touch = qtrue;
}
}
for (m = 0; m < 2; m++) {
if (m) offset2 = grid2->width-1;
else offset2 = 0;
if (R_MergedHeightPoints(grid2, offset2)) continue;
for ( l = 1; l < grid2->height-1; l++) {
//
if ( fabs(grid1->verts[grid1->width * k + offset1].xyz[0] - grid2->verts[grid2->width * l + offset2].xyz[0]) > .1) continue;
if ( fabs(grid1->verts[grid1->width * k + offset1].xyz[1] - grid2->verts[grid2->width * l + offset2].xyz[1]) > .1) continue;
if ( fabs(grid1->verts[grid1->width * k + offset1].xyz[2] - grid2->verts[grid2->width * l + offset2].xyz[2]) > .1) continue;
// ok the points are equal and should have the same lod error
grid2->heightLodError[l] = grid1->heightLodError[k];
touch = qtrue;
}
}
}
}
if (touch) {
grid2->lodFixed = 2;
R_FixSharedVertexLodError_r ( start, grid2 );
//NOTE: this would be correct but makes things really slow
//grid2->lodFixed = 1;
}
}
}
/*
=================
R_FixSharedVertexLodError
This function assumes that all patches in one group are nicely stitched together for the highest LoD.
If this is not the case this function will still do its job but won't fix the highest LoD cracks.
=================
*/
void R_FixSharedVertexLodError( void ) {
int i;
srfBspSurface_t *grid1;
for ( i = 0; i < s_worldData.numsurfaces; i++ ) {
//
grid1 = (srfBspSurface_t *) s_worldData.surfaces[i].data;
// if this surface is not a grid
if ( grid1->surfaceType != SF_GRID )
continue;
//
if ( grid1->lodFixed )
continue;
//
grid1->lodFixed = 2;
// recursively fix other patches in the same LOD group
R_FixSharedVertexLodError_r( i + 1, grid1);
}
}
/*
===============
R_StitchPatches
===============
*/
int R_StitchPatches( int grid1num, int grid2num ) {
float *v1, *v2;
srfBspSurface_t *grid1, *grid2;
int k, l, m, n, offset1, offset2, row, column;
grid1 = (srfBspSurface_t *) s_worldData.surfaces[grid1num].data;
grid2 = (srfBspSurface_t *) s_worldData.surfaces[grid2num].data;
for (n = 0; n < 2; n++) {
//
if (n) offset1 = (grid1->height-1) * grid1->width;
else offset1 = 0;
if (R_MergedWidthPoints(grid1, offset1))
continue;
for (k = 0; k < grid1->width-2; k += 2) {
for (m = 0; m < 2; m++) {
if ( grid2->width >= MAX_GRID_SIZE )
break;
if (m) offset2 = (grid2->height-1) * grid2->width;
else offset2 = 0;
for ( l = 0; l < grid2->width-1; l++) {
//
v1 = grid1->verts[k + offset1].xyz;
v2 = grid2->verts[l + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
v1 = grid1->verts[k + 2 + offset1].xyz;
v2 = grid2->verts[l + 1 + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
//
v1 = grid2->verts[l + offset2].xyz;
v2 = grid2->verts[l + 1 + offset2].xyz;
if ( fabs(v1[0] - v2[0]) < .01 &&
fabs(v1[1] - v2[1]) < .01 &&
fabs(v1[2] - v2[2]) < .01)
continue;
//
//ri.Printf( PRINT_ALL, "found highest LoD crack between two patches\n" );
// insert column into grid2 right after after column l
if (m) row = grid2->height-1;
else row = 0;
R_GridInsertColumn( grid2, l+1, row,
grid1->verts[k + 1 + offset1].xyz, grid1->widthLodError[k+1]);
grid2->lodStitched = qfalse;
s_worldData.surfaces[grid2num].data = (void *) grid2;
return qtrue;
}
}
for (m = 0; m < 2; m++) {
if (grid2->height >= MAX_GRID_SIZE)
break;
if (m) offset2 = grid2->width-1;
else offset2 = 0;
for ( l = 0; l < grid2->height-1; l++) {
//
v1 = grid1->verts[k + offset1].xyz;
v2 = grid2->verts[grid2->width * l + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
v1 = grid1->verts[k + 2 + offset1].xyz;
v2 = grid2->verts[grid2->width * (l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
//
v1 = grid2->verts[grid2->width * l + offset2].xyz;
v2 = grid2->verts[grid2->width * (l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) < .01 &&
fabs(v1[1] - v2[1]) < .01 &&
fabs(v1[2] - v2[2]) < .01)
continue;
//
//ri.Printf( PRINT_ALL, "found highest LoD crack between two patches\n" );
// insert row into grid2 right after after row l
if (m) column = grid2->width-1;
else column = 0;
R_GridInsertRow( grid2, l+1, column,
grid1->verts[k + 1 + offset1].xyz, grid1->widthLodError[k+1]);
grid2->lodStitched = qfalse;
s_worldData.surfaces[grid2num].data = (void *) grid2;
return qtrue;
}
}
}
}
for (n = 0; n < 2; n++) {
//
if (n) offset1 = grid1->width-1;
else offset1 = 0;
if (R_MergedHeightPoints(grid1, offset1))
continue;
for (k = 0; k < grid1->height-2; k += 2) {
for (m = 0; m < 2; m++) {
if ( grid2->width >= MAX_GRID_SIZE )
break;
if (m) offset2 = (grid2->height-1) * grid2->width;
else offset2 = 0;
for ( l = 0; l < grid2->width-1; l++) {
//
v1 = grid1->verts[grid1->width * k + offset1].xyz;
v2 = grid2->verts[l + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
v1 = grid1->verts[grid1->width * (k + 2) + offset1].xyz;
v2 = grid2->verts[l + 1 + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
//
v1 = grid2->verts[l + offset2].xyz;
v2 = grid2->verts[(l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) < .01 &&
fabs(v1[1] - v2[1]) < .01 &&
fabs(v1[2] - v2[2]) < .01)
continue;
//
//ri.Printf( PRINT_ALL, "found highest LoD crack between two patches\n" );
// insert column into grid2 right after after column l
if (m) row = grid2->height-1;
else row = 0;
R_GridInsertColumn( grid2, l+1, row,
grid1->verts[grid1->width * (k + 1) + offset1].xyz, grid1->heightLodError[k+1]);
grid2->lodStitched = qfalse;
s_worldData.surfaces[grid2num].data = (void *) grid2;
return qtrue;
}
}
for (m = 0; m < 2; m++) {
if (grid2->height >= MAX_GRID_SIZE)
break;
if (m) offset2 = grid2->width-1;
else offset2 = 0;
for ( l = 0; l < grid2->height-1; l++) {
//
v1 = grid1->verts[grid1->width * k + offset1].xyz;
v2 = grid2->verts[grid2->width * l + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
v1 = grid1->verts[grid1->width * (k + 2) + offset1].xyz;
v2 = grid2->verts[grid2->width * (l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
//
v1 = grid2->verts[grid2->width * l + offset2].xyz;
v2 = grid2->verts[grid2->width * (l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) < .01 &&
fabs(v1[1] - v2[1]) < .01 &&
fabs(v1[2] - v2[2]) < .01)
continue;
//
//ri.Printf( PRINT_ALL, "found highest LoD crack between two patches\n" );
// insert row into grid2 right after after row l
if (m) column = grid2->width-1;
else column = 0;
R_GridInsertRow( grid2, l+1, column,
grid1->verts[grid1->width * (k + 1) + offset1].xyz, grid1->heightLodError[k+1]);
grid2->lodStitched = qfalse;
s_worldData.surfaces[grid2num].data = (void *) grid2;
return qtrue;
}
}
}
}
for (n = 0; n < 2; n++) {
//
if (n) offset1 = (grid1->height-1) * grid1->width;
else offset1 = 0;
if (R_MergedWidthPoints(grid1, offset1))
continue;
for (k = grid1->width-1; k > 1; k -= 2) {
for (m = 0; m < 2; m++) {
if ( !grid2 || grid2->width >= MAX_GRID_SIZE )
break;
if (m) offset2 = (grid2->height-1) * grid2->width;
else offset2 = 0;
for ( l = 0; l < grid2->width-1; l++) {
//
v1 = grid1->verts[k + offset1].xyz;
v2 = grid2->verts[l + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
v1 = grid1->verts[k - 2 + offset1].xyz;
v2 = grid2->verts[l + 1 + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
//
v1 = grid2->verts[l + offset2].xyz;
v2 = grid2->verts[(l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) < .01 &&
fabs(v1[1] - v2[1]) < .01 &&
fabs(v1[2] - v2[2]) < .01)
continue;
//
//ri.Printf( PRINT_ALL, "found highest LoD crack between two patches\n" );
// insert column into grid2 right after after column l
if (m) row = grid2->height-1;
else row = 0;
R_GridInsertColumn( grid2, l+1, row,
grid1->verts[k - 1 + offset1].xyz, grid1->widthLodError[k+1]);
grid2->lodStitched = qfalse;
s_worldData.surfaces[grid2num].data = (void *) grid2;
return qtrue;
}
}
for (m = 0; m < 2; m++) {
if (!grid2 || grid2->height >= MAX_GRID_SIZE)
break;
if (m) offset2 = grid2->width-1;
else offset2 = 0;
for ( l = 0; l < grid2->height-1; l++) {
//
v1 = grid1->verts[k + offset1].xyz;
v2 = grid2->verts[grid2->width * l + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
v1 = grid1->verts[k - 2 + offset1].xyz;
v2 = grid2->verts[grid2->width * (l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
//
v1 = grid2->verts[grid2->width * l + offset2].xyz;
v2 = grid2->verts[grid2->width * (l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) < .01 &&
fabs(v1[1] - v2[1]) < .01 &&
fabs(v1[2] - v2[2]) < .01)
continue;
//
//ri.Printf( PRINT_ALL, "found highest LoD crack between two patches\n" );
// insert row into grid2 right after after row l
if (m) column = grid2->width-1;
else column = 0;
R_GridInsertRow( grid2, l+1, column,
grid1->verts[k - 1 + offset1].xyz, grid1->widthLodError[k+1]);
if (!grid2)
break;
grid2->lodStitched = qfalse;
s_worldData.surfaces[grid2num].data = (void *) grid2;
return qtrue;
}
}
}
}
for (n = 0; n < 2; n++) {
//
if (n) offset1 = grid1->width-1;
else offset1 = 0;
if (R_MergedHeightPoints(grid1, offset1))
continue;
for (k = grid1->height-1; k > 1; k -= 2) {
for (m = 0; m < 2; m++) {
if (!grid2 || grid2->width >= MAX_GRID_SIZE )
break;
if (m) offset2 = (grid2->height-1) * grid2->width;
else offset2 = 0;
for ( l = 0; l < grid2->width-1; l++) {
//
v1 = grid1->verts[grid1->width * k + offset1].xyz;
v2 = grid2->verts[l + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
v1 = grid1->verts[grid1->width * (k - 2) + offset1].xyz;
v2 = grid2->verts[l + 1 + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
//
v1 = grid2->verts[l + offset2].xyz;
v2 = grid2->verts[(l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) < .01 &&
fabs(v1[1] - v2[1]) < .01 &&
fabs(v1[2] - v2[2]) < .01)
continue;
//
//ri.Printf( PRINT_ALL, "found highest LoD crack between two patches\n" );
// insert column into grid2 right after after column l
if (m) row = grid2->height-1;
else row = 0;
R_GridInsertColumn( grid2, l+1, row,
grid1->verts[grid1->width * (k - 1) + offset1].xyz, grid1->heightLodError[k+1]);
grid2->lodStitched = qfalse;
s_worldData.surfaces[grid2num].data = (void *) grid2;
return qtrue;
}
}
for (m = 0; m < 2; m++) {
if (!grid2 || grid2->height >= MAX_GRID_SIZE)
break;
if (m) offset2 = grid2->width-1;
else offset2 = 0;
for ( l = 0; l < grid2->height-1; l++) {
//
v1 = grid1->verts[grid1->width * k + offset1].xyz;
v2 = grid2->verts[grid2->width * l + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
v1 = grid1->verts[grid1->width * (k - 2) + offset1].xyz;
v2 = grid2->verts[grid2->width * (l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) > .1)
continue;
if ( fabs(v1[1] - v2[1]) > .1)
continue;
if ( fabs(v1[2] - v2[2]) > .1)
continue;
//
v1 = grid2->verts[grid2->width * l + offset2].xyz;
v2 = grid2->verts[grid2->width * (l + 1) + offset2].xyz;
if ( fabs(v1[0] - v2[0]) < .01 &&
fabs(v1[1] - v2[1]) < .01 &&
fabs(v1[2] - v2[2]) < .01)
continue;
//
//ri.Printf( PRINT_ALL, "found highest LoD crack between two patches\n" );
// insert row into grid2 right after after row l
if (m) column = grid2->width-1;
else column = 0;
R_GridInsertRow( grid2, l+1, column,
grid1->verts[grid1->width * (k - 1) + offset1].xyz, grid1->heightLodError[k+1]);
grid2->lodStitched = qfalse;
s_worldData.surfaces[grid2num].data = (void *) grid2;
return qtrue;
}
}
}
}
return qfalse;
}
/*
===============
R_TryStitchPatch
This function will try to stitch patches in the same LoD group together for the highest LoD.
Only single missing vertice cracks will be fixed.
Vertices will be joined at the patch side a crack is first found, at the other side
of the patch (on the same row or column) the vertices will not be joined and cracks
might still appear at that side.
===============
*/
int R_TryStitchingPatch( int grid1num ) {
int j, numstitches;
srfBspSurface_t *grid1, *grid2;
numstitches = 0;
grid1 = (srfBspSurface_t *) s_worldData.surfaces[grid1num].data;
for ( j = 0; j < s_worldData.numsurfaces; j++ ) {
//
grid2 = (srfBspSurface_t *) s_worldData.surfaces[j].data;
// if this surface is not a grid
if ( grid2->surfaceType != SF_GRID ) continue;
// grids in the same LOD group should have the exact same lod radius
if ( grid1->lodRadius != grid2->lodRadius ) continue;
// grids in the same LOD group should have the exact same lod origin
if ( grid1->lodOrigin[0] != grid2->lodOrigin[0] ) continue;
if ( grid1->lodOrigin[1] != grid2->lodOrigin[1] ) continue;
if ( grid1->lodOrigin[2] != grid2->lodOrigin[2] ) continue;
//
while (R_StitchPatches(grid1num, j))
{
numstitches++;
}
}
return numstitches;
}
/*
===============
R_StitchAllPatches
===============
*/
void R_StitchAllPatches( void ) {
int i, stitched, numstitches;
srfBspSurface_t *grid1;
numstitches = 0;
do
{
stitched = qfalse;
for ( i = 0; i < s_worldData.numsurfaces; i++ ) {
//
grid1 = (srfBspSurface_t *) s_worldData.surfaces[i].data;
// if this surface is not a grid
if ( grid1->surfaceType != SF_GRID )
continue;
//
if ( grid1->lodStitched )
continue;
//
grid1->lodStitched = qtrue;
stitched = qtrue;
//
numstitches += R_TryStitchingPatch( i );
}
}
while (stitched);
ri.Printf( PRINT_ALL, "stitched %d LoD cracks\n", numstitches );
}
/*
===============
R_MovePatchSurfacesToHunk
===============
*/
void R_MovePatchSurfacesToHunk(void) {
int i;
srfBspSurface_t *grid;
for ( i = 0; i < s_worldData.numsurfaces; i++ ) {
void *copyFrom;
//
grid = (srfBspSurface_t *) s_worldData.surfaces[i].data;
// if this surface is not a grid
if ( grid->surfaceType != SF_GRID )
continue;
//
copyFrom = grid->widthLodError;
grid->widthLodError = ri.Hunk_Alloc( grid->width * 4, h_low );
Com_Memcpy(grid->widthLodError, copyFrom, grid->width * 4);
ri.Free(copyFrom);
copyFrom = grid->heightLodError;
grid->heightLodError = ri.Hunk_Alloc(grid->height * 4, h_low);
Com_Memcpy(grid->heightLodError, copyFrom, grid->height * 4);
ri.Free(copyFrom);
copyFrom = grid->indexes;
grid->indexes = ri.Hunk_Alloc(grid->numIndexes * sizeof(glIndex_t), h_low);
Com_Memcpy(grid->indexes, copyFrom, grid->numIndexes * sizeof(glIndex_t));
ri.Free(copyFrom);
copyFrom = grid->verts;
grid->verts = ri.Hunk_Alloc(grid->numVerts * sizeof(srfVert_t), h_low);
Com_Memcpy(grid->verts, copyFrom, grid->numVerts * sizeof(srfVert_t));
ri.Free(copyFrom);
}
}
/*
===============
R_LoadSurfaces
===============
*/
static void R_LoadSurfaces( lump_t *surfs, lump_t *verts, lump_t *indexLump ) {
dsurface_t *in;
msurface_t *out;
drawVert_t *dv;
int *indexes;
int count;
int numFaces, numMeshes, numTriSurfs, numFlares;
int i;
float *hdrVertColors = NULL;
numFaces = 0;
numMeshes = 0;
numTriSurfs = 0;
numFlares = 0;
if (surfs->filelen % sizeof(*in))
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
count = surfs->filelen / sizeof(*in);
dv = (void *)(fileBase + verts->fileofs);
if (verts->filelen % sizeof(*dv))
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
indexes = (void *)(fileBase + indexLump->fileofs);
if ( indexLump->filelen % sizeof(*indexes))
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
out = ri.Hunk_Alloc ( count * sizeof(*out), h_low );
s_worldData.surfaces = out;
s_worldData.numsurfaces = count;
s_worldData.surfacesViewCount = ri.Hunk_Alloc ( count * sizeof(*s_worldData.surfacesViewCount), h_low );
s_worldData.surfacesDlightBits = ri.Hunk_Alloc ( count * sizeof(*s_worldData.surfacesDlightBits), h_low );
s_worldData.surfacesPshadowBits = ri.Hunk_Alloc ( count * sizeof(*s_worldData.surfacesPshadowBits), h_low );
// load hdr vertex colors
if (r_hdr->integer)
{
char filename[MAX_QPATH];
int size;
Com_sprintf( filename, sizeof( filename ), "maps/%s/vertlight.raw", s_worldData.baseName);
//ri.Printf(PRINT_ALL, "looking for %s\n", filename);
size = ri.FS_ReadFile(filename, (void **)&hdrVertColors);
if (hdrVertColors)
{
//ri.Printf(PRINT_ALL, "Found!\n");
if (size != sizeof(float) * 3 * (verts->filelen / sizeof(*dv)))
ri.Error(ERR_DROP, "Bad size for %s (%i, expected %i)!", filename, size, (int)((sizeof(float)) * 3 * (verts->filelen / sizeof(*dv))));
}
}
// Two passes, allocate surfaces first, then load them full of data
// This ensures surfaces are close together to reduce L2 cache misses when using VAOs,
// which don't actually use the verts and indexes
in = (void *)(fileBase + surfs->fileofs);
out = s_worldData.surfaces;
for ( i = 0 ; i < count ; i++, in++, out++ ) {
switch ( LittleLong( in->surfaceType ) ) {
case MST_PATCH:
out->data = ri.Hunk_Alloc( sizeof(srfBspSurface_t), h_low);
break;
case MST_TRIANGLE_SOUP:
out->data = ri.Hunk_Alloc( sizeof(srfBspSurface_t), h_low);
break;
case MST_PLANAR:
out->data = ri.Hunk_Alloc( sizeof(srfBspSurface_t), h_low);
break;
case MST_FLARE:
out->data = ri.Hunk_Alloc( sizeof(srfFlare_t), h_low);
break;
default:
break;
}
}
in = (void *)(fileBase + surfs->fileofs);
out = s_worldData.surfaces;
for ( i = 0 ; i < count ; i++, in++, out++ ) {
switch ( LittleLong( in->surfaceType ) ) {
case MST_PATCH:
ParseMesh ( in, dv, hdrVertColors, out );
numMeshes++;
break;
case MST_TRIANGLE_SOUP:
ParseTriSurf( in, dv, hdrVertColors, out, indexes );
numTriSurfs++;
break;
case MST_PLANAR:
ParseFace( in, dv, hdrVertColors, out, indexes );
numFaces++;
break;
case MST_FLARE:
ParseFlare( in, dv, out, indexes );
numFlares++;
break;
default:
ri.Error( ERR_DROP, "Bad surfaceType" );
}
}
if (hdrVertColors)
{
ri.FS_FreeFile(hdrVertColors);
}
#ifdef PATCH_STITCHING
R_StitchAllPatches();
#endif
R_FixSharedVertexLodError();
#ifdef PATCH_STITCHING
R_MovePatchSurfacesToHunk();
#endif
ri.Printf( PRINT_ALL, "...loaded %d faces, %i meshes, %i trisurfs, %i flares\n",
numFaces, numMeshes, numTriSurfs, numFlares );
}
/*
=================
R_LoadSubmodels
=================
*/
static void R_LoadSubmodels( lump_t *l ) {
dmodel_t *in;
bmodel_t *out;
int i, j, count;
in = (void *)(fileBase + l->fileofs);
if (l->filelen % sizeof(*in))
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
count = l->filelen / sizeof(*in);
s_worldData.numBModels = count;
s_worldData.bmodels = out = ri.Hunk_Alloc( count * sizeof(*out), h_low );
for ( i=0 ; i<count ; i++, in++, out++ ) {
model_t *model;
model = R_AllocModel();
assert( model != NULL ); // this should never happen
if ( model == NULL ) {
ri.Error(ERR_DROP, "R_LoadSubmodels: R_AllocModel() failed");
}
model->type = MOD_BRUSH;
model->bmodel = out;
Com_sprintf( model->name, sizeof( model->name ), "*%d", i );
for (j=0 ; j<3 ; j++) {
out->bounds[0][j] = LittleFloat (in->mins[j]);
out->bounds[1][j] = LittleFloat (in->maxs[j]);
}
out->firstSurface = LittleLong( in->firstSurface );
out->numSurfaces = LittleLong( in->numSurfaces );
if(i == 0)
{
// Add this for limiting VAO surface creation
s_worldData.numWorldSurfaces = out->numSurfaces;
}
}
}
//==================================================================
/*
=================
R_SetParent
=================
*/
static void R_SetParent (mnode_t *node, mnode_t *parent)
{
node->parent = parent;
if (node->contents != -1)
return;
R_SetParent (node->children[0], node);
R_SetParent (node->children[1], node);
}
/*
=================
R_LoadNodesAndLeafs
=================
*/
static void R_LoadNodesAndLeafs (lump_t *nodeLump, lump_t *leafLump) {
int i, j, p;
dnode_t *in;
dleaf_t *inLeaf;
mnode_t *out;
int numNodes, numLeafs;
in = (void *)(fileBase + nodeLump->fileofs);
if (nodeLump->filelen % sizeof(dnode_t) ||
leafLump->filelen % sizeof(dleaf_t) ) {
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
}
numNodes = nodeLump->filelen / sizeof(dnode_t);
numLeafs = leafLump->filelen / sizeof(dleaf_t);
out = ri.Hunk_Alloc ( (numNodes + numLeafs) * sizeof(*out), h_low);
s_worldData.nodes = out;
s_worldData.numnodes = numNodes + numLeafs;
s_worldData.numDecisionNodes = numNodes;
// load nodes
for ( i=0 ; i<numNodes; i++, in++, out++)
{
for (j=0 ; j<3 ; j++)
{
out->mins[j] = LittleLong (in->mins[j]);
out->maxs[j] = LittleLong (in->maxs[j]);
}
p = LittleLong(in->planeNum);
out->plane = s_worldData.planes + p;
out->contents = CONTENTS_NODE; // differentiate from leafs
for (j=0 ; j<2 ; j++)
{
p = LittleLong (in->children[j]);
if (p >= 0)
out->children[j] = s_worldData.nodes + p;
else
out->children[j] = s_worldData.nodes + numNodes + (-1 - p);
}
}
// load leafs
inLeaf = (void *)(fileBase + leafLump->fileofs);
for ( i=0 ; i<numLeafs ; i++, inLeaf++, out++)
{
for (j=0 ; j<3 ; j++)
{
out->mins[j] = LittleLong (inLeaf->mins[j]);
out->maxs[j] = LittleLong (inLeaf->maxs[j]);
}
out->cluster = LittleLong(inLeaf->cluster);
out->area = LittleLong(inLeaf->area);
if ( out->cluster >= s_worldData.numClusters ) {
s_worldData.numClusters = out->cluster + 1;
}
out->firstmarksurface = LittleLong(inLeaf->firstLeafSurface);
out->nummarksurfaces = LittleLong(inLeaf->numLeafSurfaces);
}
// chain descendants
R_SetParent (s_worldData.nodes, NULL);
}
//=============================================================================
/*
=================
R_LoadShaders
=================
*/
static void R_LoadShaders( lump_t *l ) {
int i, count;
dshader_t *in, *out;
in = (void *)(fileBase + l->fileofs);
if (l->filelen % sizeof(*in))
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
count = l->filelen / sizeof(*in);
out = ri.Hunk_Alloc ( count*sizeof(*out), h_low );
s_worldData.shaders = out;
s_worldData.numShaders = count;
Com_Memcpy( out, in, count*sizeof(*out) );
for ( i=0 ; i<count ; i++ ) {
out[i].surfaceFlags = LittleLong( out[i].surfaceFlags );
out[i].contentFlags = LittleLong( out[i].contentFlags );
}
}
/*
=================
R_LoadMarksurfaces
=================
*/
static void R_LoadMarksurfaces (lump_t *l)
{
int i, j, count;
int *in;
int *out;
in = (void *)(fileBase + l->fileofs);
if (l->filelen % sizeof(*in))
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
count = l->filelen / sizeof(*in);
out = ri.Hunk_Alloc ( count*sizeof(*out), h_low);
s_worldData.marksurfaces = out;
s_worldData.nummarksurfaces = count;
for ( i=0 ; i<count ; i++)
{
j = LittleLong(in[i]);
out[i] = j;
}
}
/*
=================
R_LoadPlanes
=================
*/
static void R_LoadPlanes( lump_t *l ) {
int i, j;
cplane_t *out;
dplane_t *in;
int count;
int bits;
in = (void *)(fileBase + l->fileofs);
if (l->filelen % sizeof(*in))
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
count = l->filelen / sizeof(*in);
out = ri.Hunk_Alloc ( count*2*sizeof(*out), h_low);
s_worldData.planes = out;
s_worldData.numplanes = count;
for ( i=0 ; i<count ; i++, in++, out++) {
bits = 0;
for (j=0 ; j<3 ; j++) {
out->normal[j] = LittleFloat (in->normal[j]);
if (out->normal[j] < 0) {
bits |= 1<<j;
}
}
out->dist = LittleFloat (in->dist);
out->type = PlaneTypeForNormal( out->normal );
out->signbits = bits;
}
}
/*
=================
R_LoadFogs
=================
*/
static void R_LoadFogs( lump_t *l, lump_t *brushesLump, lump_t *sidesLump ) {
int i;
fog_t *out;
dfog_t *fogs;
dbrush_t *brushes, *brush;
dbrushside_t *sides;
int count, brushesCount, sidesCount;
int sideNum;
int planeNum;
shader_t *shader;
float d;
int firstSide;
fogs = (void *)(fileBase + l->fileofs);
if (l->filelen % sizeof(*fogs)) {
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
}
count = l->filelen / sizeof(*fogs);
// create fog strucutres for them
s_worldData.numfogs = count + 1;
s_worldData.fogs = ri.Hunk_Alloc ( s_worldData.numfogs*sizeof(*out), h_low);
out = s_worldData.fogs + 1;
if ( !count ) {
return;
}
brushes = (void *)(fileBase + brushesLump->fileofs);
if (brushesLump->filelen % sizeof(*brushes)) {
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
}
brushesCount = brushesLump->filelen / sizeof(*brushes);
sides = (void *)(fileBase + sidesLump->fileofs);
if (sidesLump->filelen % sizeof(*sides)) {
ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
}
sidesCount = sidesLump->filelen / sizeof(*sides);
for ( i=0 ; i<count ; i++, fogs++) {
out->originalBrushNumber = LittleLong( fogs->brushNum );
if ( (unsigned)out->originalBrushNumber >= brushesCount ) {
ri.Error( ERR_DROP, "fog brushNumber out of range" );
}
brush = brushes + out->originalBrushNumber;
firstSide = LittleLong( brush->firstSide );
if ( (unsigned)firstSide > sidesCount - 6 ) {
ri.Error( ERR_DROP, "fog brush sideNumber out of range" );
}
// brushes are always sorted with the axial sides first
sideNum = firstSide + 0;
planeNum = LittleLong( sides[ sideNum ].planeNum );
out->bounds[0][0] = -s_worldData.planes[ planeNum ].dist;
sideNum = firstSide + 1;
planeNum = LittleLong( sides[ sideNum ].planeNum );
out->bounds[1][0] = s_worldData.planes[ planeNum ].dist;
sideNum = firstSide + 2;
planeNum = LittleLong( sides[ sideNum ].planeNum );
out->bounds[0][1] = -s_worldData.planes[ planeNum ].dist;
sideNum = firstSide + 3;
planeNum = LittleLong( sides[ sideNum ].planeNum );
out->bounds[1][1] = s_worldData.planes[ planeNum ].dist;
sideNum = firstSide + 4;
planeNum = LittleLong( sides[ sideNum ].planeNum );
out->bounds[0][2] = -s_worldData.planes[ planeNum ].dist;
sideNum = firstSide + 5;
planeNum = LittleLong( sides[ sideNum ].planeNum );
out->bounds[1][2] = s_worldData.planes[ planeNum ].dist;
// get information from the shader for fog parameters
shader = R_FindShader( fogs->shader, LIGHTMAP_NONE, qtrue );
out->parms = shader->fogParms;
out->colorInt = ColorBytes4 ( shader->fogParms.color[0],
shader->fogParms.color[1],
shader->fogParms.color[2], 1.0 );
d = shader->fogParms.depthForOpaque < 1 ? 1 : shader->fogParms.depthForOpaque;
out->tcScale = 1.0f / ( d * 8 );
// set the gradient vector
sideNum = LittleLong( fogs->visibleSide );
if ( sideNum == -1 ) {
out->hasSurface = qfalse;
} else {
out->hasSurface = qtrue;
planeNum = LittleLong( sides[ firstSide + sideNum ].planeNum );
VectorSubtract( vec3_origin, s_worldData.planes[ planeNum ].normal, out->surface );
out->surface[3] = -s_worldData.planes[ planeNum ].dist;
}
out++;
}
}
/*
================
R_LoadLightGrid
================
*/
void R_LoadLightGrid( lump_t *l ) {
int i;
vec3_t maxs;
int numGridPoints;
world_t *w;
float *wMins, *wMaxs;
w = &s_worldData;
w->lightGridInverseSize[0] = 1.0f / w->lightGridSize[0];
w->lightGridInverseSize[1] = 1.0f / w->lightGridSize[1];
w->lightGridInverseSize[2] = 1.0f / w->lightGridSize[2];
wMins = w->bmodels[0].bounds[0];
wMaxs = w->bmodels[0].bounds[1];
for ( i = 0 ; i < 3 ; i++ ) {
w->lightGridOrigin[i] = w->lightGridSize[i] * ceil( wMins[i] / w->lightGridSize[i] );
maxs[i] = w->lightGridSize[i] * floor( wMaxs[i] / w->lightGridSize[i] );
w->lightGridBounds[i] = (maxs[i] - w->lightGridOrigin[i])/w->lightGridSize[i] + 1;
}
numGridPoints = w->lightGridBounds[0] * w->lightGridBounds[1] * w->lightGridBounds[2];
if ( l->filelen != numGridPoints * 8 ) {
ri.Printf( PRINT_WARNING, "WARNING: light grid mismatch\n" );
w->lightGridData = NULL;
return;
}
w->lightGridData = ri.Hunk_Alloc( l->filelen, h_low );
Com_Memcpy( w->lightGridData, (void *)(fileBase + l->fileofs), l->filelen );
// deal with overbright bits
for ( i = 0 ; i < numGridPoints ; i++ ) {
R_ColorShiftLightingBytes( &w->lightGridData[i*8], &w->lightGridData[i*8] );
R_ColorShiftLightingBytes( &w->lightGridData[i*8+3], &w->lightGridData[i*8+3] );
}
// load hdr lightgrid
if (r_hdr->integer)
{
char filename[MAX_QPATH];
float *hdrLightGrid;
int size;
Com_sprintf( filename, sizeof( filename ), "maps/%s/lightgrid.raw", s_worldData.baseName);
//ri.Printf(PRINT_ALL, "looking for %s\n", filename);
size = ri.FS_ReadFile(filename, (void **)&hdrLightGrid);
if (hdrLightGrid)
{
//ri.Printf(PRINT_ALL, "found!\n");
if (size != sizeof(float) * 6 * numGridPoints)
ri.Error(ERR_DROP, "Bad size for %s (%i, expected %i)!", filename, size, (int)(sizeof(float)) * 6 * numGridPoints);
w->lightGrid16 = ri.Hunk_Alloc(sizeof(w->lightGrid16) * 6 * numGridPoints, h_low);
for (i = 0; i < numGridPoints ; i++)
{
vec4_t c;
c[0] = hdrLightGrid[i * 6];
c[1] = hdrLightGrid[i * 6 + 1];
c[2] = hdrLightGrid[i * 6 + 2];
c[3] = 1.0f;
R_ColorShiftLightingFloats(c, c);
ColorToRGB16(c, &w->lightGrid16[i * 6]);
c[0] = hdrLightGrid[i * 6 + 3];
c[1] = hdrLightGrid[i * 6 + 4];
c[2] = hdrLightGrid[i * 6 + 5];
c[3] = 1.0f;
R_ColorShiftLightingFloats(c, c);
ColorToRGB16(c, &w->lightGrid16[i * 6 + 3]);
}
}
else if (0)
{
// promote 8-bit lightgrid to 16-bit
w->lightGrid16 = ri.Hunk_Alloc(sizeof(w->lightGrid16) * 6 * numGridPoints, h_low);
for (i = 0; i < numGridPoints; i++)
{
w->lightGrid16[i * 6] = w->lightGridData[i * 8] * 257;
w->lightGrid16[i * 6 + 1] = w->lightGridData[i * 8 + 1] * 257;
w->lightGrid16[i * 6 + 2] = w->lightGridData[i * 8 + 2] * 257;
w->lightGrid16[i * 6 + 3] = w->lightGridData[i * 8 + 3] * 257;
w->lightGrid16[i * 6 + 4] = w->lightGridData[i * 8 + 4] * 257;
w->lightGrid16[i * 6 + 5] = w->lightGridData[i * 8 + 5] * 257;
}
}
if (hdrLightGrid)
ri.FS_FreeFile(hdrLightGrid);
}
}
/*
================
R_LoadEntities
================
*/
void R_LoadEntities( lump_t *l ) {
char *p, *token, *s;
char keyname[MAX_TOKEN_CHARS];
char value[MAX_TOKEN_CHARS];
world_t *w;
w = &s_worldData;
w->lightGridSize[0] = 64;
w->lightGridSize[1] = 64;
w->lightGridSize[2] = 128;
p = (char *)(fileBase + l->fileofs);
// store for reference by the cgame
w->entityString = ri.Hunk_Alloc( l->filelen + 1, h_low );
strcpy( w->entityString, p );
w->entityParsePoint = w->entityString;
token = COM_ParseExt( &p, qtrue );
if (!*token || *token != '{') {
return;
}
// only parse the world spawn
while ( 1 ) {
// parse key
token = COM_ParseExt( &p, qtrue );
if ( !*token || *token == '}' ) {
break;
}
Q_strncpyz(keyname, token, sizeof(keyname));
// parse value
token = COM_ParseExt( &p, qtrue );
if ( !*token || *token == '}' ) {
break;
}
Q_strncpyz(value, token, sizeof(value));
// check for remapping of shaders for vertex lighting
s = "vertexremapshader";
if (!Q_strncmp(keyname, s, strlen(s)) ) {
s = strchr(value, ';');
if (!s) {
ri.Printf( PRINT_WARNING, "WARNING: no semi colon in vertexshaderremap '%s'\n", value );
break;
}
*s++ = 0;
if (r_vertexLight->integer) {
R_RemapShader(value, s, "0");
}
continue;
}
// check for remapping of shaders
s = "remapshader";
if (!Q_strncmp(keyname, s, strlen(s)) ) {
s = strchr(value, ';');
if (!s) {
ri.Printf( PRINT_WARNING, "WARNING: no semi colon in shaderremap '%s'\n", value );
break;
}
*s++ = 0;
R_RemapShader(value, s, "0");
continue;
}
// check for a different grid size
if (!Q_stricmp(keyname, "gridsize")) {
sscanf(value, "%f %f %f", &w->lightGridSize[0], &w->lightGridSize[1], &w->lightGridSize[2] );
continue;
}
// check for auto exposure
if (!Q_stricmp(keyname, "autoExposureMinMax")) {
sscanf(value, "%f %f", &tr.autoExposureMinMax[0], &tr.autoExposureMinMax[1]);
continue;
}
}
}
/*
=================
R_GetEntityToken
=================
*/
qboolean R_GetEntityToken( char *buffer, int size ) {
const char *s;
s = COM_Parse( &s_worldData.entityParsePoint );
Q_strncpyz( buffer, s, size );
if ( !s_worldData.entityParsePoint && !s[0] ) {
s_worldData.entityParsePoint = s_worldData.entityString;
return qfalse;
} else {
return qtrue;
}
}
#ifndef MAX_SPAWN_VARS
#define MAX_SPAWN_VARS 64
#endif
// derived from G_ParseSpawnVars() in g_spawn.c
qboolean R_ParseSpawnVars( char *spawnVarChars, int maxSpawnVarChars, int *numSpawnVars, char *spawnVars[MAX_SPAWN_VARS][2] )
{
char keyname[MAX_TOKEN_CHARS];
char com_token[MAX_TOKEN_CHARS];
int numSpawnVarChars = 0;
*numSpawnVars = 0;
// parse the opening brace
if ( !R_GetEntityToken( com_token, sizeof( com_token ) ) ) {
// end of spawn string
return qfalse;
}
if ( com_token[0] != '{' ) {
ri.Printf( PRINT_ALL, "R_ParseSpawnVars: found %s when expecting {\n",com_token );
return qfalse;
}
// go through all the key / value pairs
while ( 1 ) {
int keyLength, tokenLength;
// parse key
if ( !R_GetEntityToken( keyname, sizeof( keyname ) ) ) {
ri.Printf( PRINT_ALL, "R_ParseSpawnVars: EOF without closing brace\n" );
return qfalse;
}
if ( keyname[0] == '}' ) {
break;
}
// parse value
if ( !R_GetEntityToken( com_token, sizeof( com_token ) ) ) {
ri.Printf( PRINT_ALL, "R_ParseSpawnVars: EOF without closing brace\n" );
return qfalse;
}
if ( com_token[0] == '}' ) {
ri.Printf( PRINT_ALL, "R_ParseSpawnVars: closing brace without data\n" );
return qfalse;
}
if ( *numSpawnVars == MAX_SPAWN_VARS ) {
ri.Printf( PRINT_ALL, "R_ParseSpawnVars: MAX_SPAWN_VARS\n" );
return qfalse;
}
keyLength = strlen(keyname) + 1;
tokenLength = strlen(com_token) + 1;
if (numSpawnVarChars + keyLength + tokenLength > maxSpawnVarChars)
{
ri.Printf( PRINT_ALL, "R_ParseSpawnVars: MAX_SPAWN_VAR_CHARS\n" );
return qfalse;
}
strcpy(spawnVarChars + numSpawnVarChars, keyname);
spawnVars[ *numSpawnVars ][0] = spawnVarChars + numSpawnVarChars;
numSpawnVarChars += keyLength;
strcpy(spawnVarChars + numSpawnVarChars, com_token);
spawnVars[ *numSpawnVars ][1] = spawnVarChars + numSpawnVarChars;
numSpawnVarChars += tokenLength;
(*numSpawnVars)++;
}
return qtrue;
}
void R_LoadEnvironmentJson(const char *baseName)
{
char filename[MAX_QPATH];
union {
char *c;
void *v;
} buffer;
char *bufferEnd;
const char *cubemapArrayJson;
int filelen, i;
Com_sprintf(filename, MAX_QPATH, "cubemaps/%s/env.json", baseName);
filelen = ri.FS_ReadFile(filename, &buffer.v);
if (!buffer.c)
return;
bufferEnd = buffer.c + filelen;
if (JSON_ValueGetType(buffer.c, bufferEnd) != JSONTYPE_OBJECT)
{
ri.Printf(PRINT_ALL, "Bad %s: does not start with a object\n", filename);
ri.FS_FreeFile(buffer.v);
return;
}
cubemapArrayJson = JSON_ObjectGetNamedValue(buffer.c, bufferEnd, "Cubemaps");
if (!cubemapArrayJson)
{
ri.Printf(PRINT_ALL, "Bad %s: no Cubemaps\n", filename);
ri.FS_FreeFile(buffer.v);
return;
}
if (JSON_ValueGetType(cubemapArrayJson, bufferEnd) != JSONTYPE_ARRAY)
{
ri.Printf(PRINT_ALL, "Bad %s: Cubemaps not an array\n", filename);
ri.FS_FreeFile(buffer.v);
return;
}
tr.numCubemaps = JSON_ArrayGetIndex(cubemapArrayJson, bufferEnd, NULL, 0);
tr.cubemaps = ri.Hunk_Alloc(tr.numCubemaps * sizeof(*tr.cubemaps), h_low);
memset(tr.cubemaps, 0, tr.numCubemaps * sizeof(*tr.cubemaps));
for (i = 0; i < tr.numCubemaps; i++)
{
cubemap_t *cubemap = &tr.cubemaps[i];
const char *cubemapJson, *keyValueJson, *indexes[3];
int j;
cubemapJson = JSON_ArrayGetValue(cubemapArrayJson, bufferEnd, i);
keyValueJson = JSON_ObjectGetNamedValue(cubemapJson, bufferEnd, "Name");
if (!JSON_ValueGetString(keyValueJson, bufferEnd, cubemap->name, MAX_QPATH))
cubemap->name[0] = '\0';
keyValueJson = JSON_ObjectGetNamedValue(cubemapJson, bufferEnd, "Position");
JSON_ArrayGetIndex(keyValueJson, bufferEnd, indexes, 3);
for (j = 0; j < 3; j++)
cubemap->origin[j] = JSON_ValueGetFloat(indexes[j], bufferEnd);
cubemap->parallaxRadius = 1000.0f;
keyValueJson = JSON_ObjectGetNamedValue(cubemapJson, bufferEnd, "Radius");
if (keyValueJson)
cubemap->parallaxRadius = JSON_ValueGetFloat(keyValueJson, bufferEnd);
}
ri.FS_FreeFile(buffer.v);
}
void R_LoadCubemapEntities(char *cubemapEntityName)
{
char spawnVarChars[2048];
int numSpawnVars;
char *spawnVars[MAX_SPAWN_VARS][2];
int numCubemaps = 0;
// count cubemaps
numCubemaps = 0;
while(R_ParseSpawnVars(spawnVarChars, sizeof(spawnVarChars), &numSpawnVars, spawnVars))
{
int i;
for (i = 0; i < numSpawnVars; i++)
{
if (!Q_stricmp(spawnVars[i][0], "classname") && !Q_stricmp(spawnVars[i][1], cubemapEntityName))
numCubemaps++;
}
}
if (!numCubemaps)
return;
tr.numCubemaps = numCubemaps;
tr.cubemaps = ri.Hunk_Alloc(tr.numCubemaps * sizeof(*tr.cubemaps), h_low);
memset(tr.cubemaps, 0, tr.numCubemaps * sizeof(*tr.cubemaps));
numCubemaps = 0;
while(R_ParseSpawnVars(spawnVarChars, sizeof(spawnVarChars), &numSpawnVars, spawnVars))
{
int i;
char name[MAX_QPATH];
qboolean isCubemap = qfalse;
qboolean originSet = qfalse;
vec3_t origin;
float parallaxRadius = 1000.0f;
name[0] = '\0';
for (i = 0; i < numSpawnVars; i++)
{
if (!Q_stricmp(spawnVars[i][0], "classname") && !Q_stricmp(spawnVars[i][1], cubemapEntityName))
isCubemap = qtrue;
if (!Q_stricmp(spawnVars[i][0], "name"))
Q_strncpyz(name, spawnVars[i][1], MAX_QPATH);
if (!Q_stricmp(spawnVars[i][0], "origin"))
{
sscanf(spawnVars[i][1], "%f %f %f", &origin[0], &origin[1], &origin[2]);
originSet = qtrue;
}
else if (!Q_stricmp(spawnVars[i][0], "radius"))
{
sscanf(spawnVars[i][1], "%f", &parallaxRadius);
}
}
if (isCubemap && originSet)
{
cubemap_t *cubemap = &tr.cubemaps[numCubemaps];
Q_strncpyz(cubemap->name, name, MAX_QPATH);
VectorCopy(origin, cubemap->origin);
cubemap->parallaxRadius = parallaxRadius;
numCubemaps++;
}
}
}
void R_AssignCubemapsToWorldSurfaces(void)
{
world_t *w;
int i;
w = &s_worldData;
for (i = 0; i < w->numsurfaces; i++)
{
msurface_t *surf = &w->surfaces[i];
vec3_t surfOrigin;
if (surf->cullinfo.type & CULLINFO_SPHERE)
{
VectorCopy(surf->cullinfo.localOrigin, surfOrigin);
}
else if (surf->cullinfo.type & CULLINFO_BOX)
{
surfOrigin[0] = (surf->cullinfo.bounds[0][0] + surf->cullinfo.bounds[1][0]) * 0.5f;
surfOrigin[1] = (surf->cullinfo.bounds[0][1] + surf->cullinfo.bounds[1][1]) * 0.5f;
surfOrigin[2] = (surf->cullinfo.bounds[0][2] + surf->cullinfo.bounds[1][2]) * 0.5f;
}
else
{
//ri.Printf(PRINT_ALL, "surface %d has no cubemap\n", i);
continue;
}
surf->cubemapIndex = R_CubemapForPoint(surfOrigin);
//ri.Printf(PRINT_ALL, "surface %d has cubemap %d\n", i, surf->cubemapIndex);
}
}
void R_LoadCubemaps(void)
{
int i;
imgFlags_t flags = IMGFLAG_CLAMPTOEDGE | IMGFLAG_MIPMAP | IMGFLAG_NOLIGHTSCALE | IMGFLAG_CUBEMAP;
for (i = 0; i < tr.numCubemaps; i++)
{
char filename[MAX_QPATH];
cubemap_t *cubemap = &tr.cubemaps[i];
Com_sprintf(filename, MAX_QPATH, "cubemaps/%s/%03d.dds", tr.world->baseName, i);
cubemap->image = R_FindImageFile(filename, IMGTYPE_COLORALPHA, flags);
}
}
void R_RenderMissingCubemaps(void)
{
int i, j;
imgFlags_t flags = IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE | IMGFLAG_MIPMAP | IMGFLAG_NOLIGHTSCALE | IMGFLAG_CUBEMAP;
for (i = 0; i < tr.numCubemaps; i++)
{
if (!tr.cubemaps[i].image)
{
tr.cubemaps[i].image = R_CreateImage(va("*cubeMap%d", i), NULL, r_cubemapSize->integer, r_cubemapSize->integer, IMGTYPE_COLORALPHA, flags, GL_RGBA8);
for (j = 0; j < 6; j++)
{
RE_ClearScene();
R_RenderCubemapSide(i, j, qfalse);
R_IssuePendingRenderCommands();
R_InitNextFrame();
}
}
}
}
void R_CalcVertexLightDirs( void )
{
int i, k;
msurface_t *surface;
for(k = 0, surface = &s_worldData.surfaces[0]; k < s_worldData.numsurfaces /* s_worldData.numWorldSurfaces */; k++, surface++)
{
srfBspSurface_t *bspSurf = (srfBspSurface_t *) surface->data;
switch(bspSurf->surfaceType)
{
case SF_FACE:
case SF_GRID:
case SF_TRIANGLES:
for(i = 0; i < bspSurf->numVerts; i++)
{
vec3_t lightDir;
vec3_t normal;
R_VaoUnpackNormal(normal, bspSurf->verts[i].normal);
R_LightDirForPoint( bspSurf->verts[i].xyz, lightDir, normal, &s_worldData );
R_VaoPackNormal(bspSurf->verts[i].lightdir, lightDir);
}
break;
default:
break;
}
}
}
/*
=================
RE_LoadWorldMap
Called directly from cgame
=================
*/
void RE_LoadWorldMap( const char *name ) {
int i;
dheader_t *header;
union {
byte *b;
void *v;
} buffer;
byte *startMarker;
if ( tr.worldMapLoaded ) {
ri.Error( ERR_DROP, "ERROR: attempted to redundantly load world map" );
}
// set default map light scale
tr.sunShadowScale = 0.5f;
// set default sun direction to be used if it isn't
// overridden by a shader
tr.sunDirection[0] = 0.45f;
tr.sunDirection[1] = 0.3f;
tr.sunDirection[2] = 0.9f;
VectorNormalize( tr.sunDirection );
// set default autoexposure settings
tr.autoExposureMinMax[0] = -2.0f;
tr.autoExposureMinMax[1] = 2.0f;
// set default tone mapping settings
tr.toneMinAvgMaxLevel[0] = -8.0f;
tr.toneMinAvgMaxLevel[1] = -2.0f;
tr.toneMinAvgMaxLevel[2] = 0.0f;
// reset last cascade sun direction so last shadow cascade is rerendered
VectorClear(tr.lastCascadeSunDirection);
tr.worldMapLoaded = qtrue;
// load it
ri.FS_ReadFile( name, &buffer.v );
if ( !buffer.b ) {
ri.Error (ERR_DROP, "RE_LoadWorldMap: %s not found", name);
}
// clear tr.world so if the level fails to load, the next
// try will not look at the partially loaded version
tr.world = NULL;
Com_Memset( &s_worldData, 0, sizeof( s_worldData ) );
Q_strncpyz( s_worldData.name, name, sizeof( s_worldData.name ) );
Q_strncpyz( s_worldData.baseName, COM_SkipPath( s_worldData.name ), sizeof( s_worldData.name ) );
COM_StripExtension(s_worldData.baseName, s_worldData.baseName, sizeof(s_worldData.baseName));
startMarker = ri.Hunk_Alloc(0, h_low);
c_gridVerts = 0;
header = (dheader_t *)buffer.b;
fileBase = (byte *)header;
i = LittleLong (header->version);
if ( i != BSP_VERSION ) {
ri.Error (ERR_DROP, "RE_LoadWorldMap: %s has wrong version number (%i should be %i)",
name, i, BSP_VERSION);
}
// swap all the lumps
for (i=0 ; i<sizeof(dheader_t)/4 ; i++) {
((int *)header)[i] = LittleLong ( ((int *)header)[i]);
}
// load into heap
R_LoadEntities( &header->lumps[LUMP_ENTITIES] );
R_LoadShaders( &header->lumps[LUMP_SHADERS] );
R_LoadLightmaps( &header->lumps[LUMP_LIGHTMAPS], &header->lumps[LUMP_SURFACES] );
R_LoadPlanes (&header->lumps[LUMP_PLANES]);
R_LoadFogs( &header->lumps[LUMP_FOGS], &header->lumps[LUMP_BRUSHES], &header->lumps[LUMP_BRUSHSIDES] );
R_LoadSurfaces( &header->lumps[LUMP_SURFACES], &header->lumps[LUMP_DRAWVERTS], &header->lumps[LUMP_DRAWINDEXES] );
R_LoadMarksurfaces (&header->lumps[LUMP_LEAFSURFACES]);
R_LoadNodesAndLeafs (&header->lumps[LUMP_NODES], &header->lumps[LUMP_LEAFS]);
R_LoadSubmodels (&header->lumps[LUMP_MODELS]);
R_LoadVisibility( &header->lumps[LUMP_VISIBILITY] );
R_LoadLightGrid( &header->lumps[LUMP_LIGHTGRID] );
// determine vertex light directions
R_CalcVertexLightDirs();
// determine which parts of the map are in sunlight
if (0)
{
world_t *w;
uint8_t *primaryLightGrid, *data;
int lightGridSize;
int i;
w = &s_worldData;
lightGridSize = w->lightGridBounds[0] * w->lightGridBounds[1] * w->lightGridBounds[2];
primaryLightGrid = ri.Malloc(lightGridSize * sizeof(*primaryLightGrid));
memset(primaryLightGrid, 0, lightGridSize * sizeof(*primaryLightGrid));
data = w->lightGridData;
for (i = 0; i < lightGridSize; i++, data += 8)
{
int lat, lng;
vec3_t gridLightDir, gridLightCol;
// skip samples in wall
if (!(data[0]+data[1]+data[2]+data[3]+data[4]+data[5]) )
continue;
gridLightCol[0] = ByteToFloat(data[3]);
gridLightCol[1] = ByteToFloat(data[4]);
gridLightCol[2] = ByteToFloat(data[5]);
(void)gridLightCol; // Suppress unused-but-set-variable warning
lat = data[7];
lng = data[6];
lat *= (FUNCTABLE_SIZE/256);
lng *= (FUNCTABLE_SIZE/256);
// decode X as cos( lat ) * sin( long )
// decode Y as sin( lat ) * sin( long )
// decode Z as cos( long )
gridLightDir[0] = tr.sinTable[(lat+(FUNCTABLE_SIZE/4))&FUNCTABLE_MASK] * tr.sinTable[lng];
gridLightDir[1] = tr.sinTable[lat] * tr.sinTable[lng];
gridLightDir[2] = tr.sinTable[(lng+(FUNCTABLE_SIZE/4))&FUNCTABLE_MASK];
// FIXME: magic number for determining if light direction is close enough to sunlight
if (DotProduct(gridLightDir, tr.sunDirection) > 0.75f)
{
primaryLightGrid[i] = 1;
}
else
{
primaryLightGrid[i] = 255;
}
}
if (0)
{
int i;
byte *buffer = ri.Malloc(w->lightGridBounds[0] * w->lightGridBounds[1] * 3 + 18);
byte *out;
uint8_t *in;
char fileName[MAX_QPATH];
Com_Memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
buffer[12] = w->lightGridBounds[0] & 255;
buffer[13] = w->lightGridBounds[0] >> 8;
buffer[14] = w->lightGridBounds[1] & 255;
buffer[15] = w->lightGridBounds[1] >> 8;
buffer[16] = 24; // pixel size
in = primaryLightGrid;
for (i = 0; i < w->lightGridBounds[2]; i++)
{
int j;
sprintf(fileName, "primarylg%d.tga", i);
out = buffer + 18;
for (j = 0; j < w->lightGridBounds[0] * w->lightGridBounds[1]; j++)
{
if (*in == 1)
{
*out++ = 255;
*out++ = 255;
*out++ = 255;
}
else if (*in == 255)
{
*out++ = 64;
*out++ = 64;
*out++ = 64;
}
else
{
*out++ = 0;
*out++ = 0;
*out++ = 0;
}
in++;
}
ri.FS_WriteFile(fileName, buffer, w->lightGridBounds[0] * w->lightGridBounds[1] * 3 + 18);
}
ri.Free(buffer);
}
for (i = 0; i < w->numWorldSurfaces; i++)
{
msurface_t *surf = w->surfaces + i;
cullinfo_t *ci = &surf->cullinfo;
if(ci->type & CULLINFO_PLANE)
{
if (DotProduct(ci->plane.normal, tr.sunDirection) <= 0.0f)
{
//ri.Printf(PRINT_ALL, "surface %d is not oriented towards sunlight\n", i);
continue;
}
}
if(ci->type & CULLINFO_BOX)
{
int ibounds[2][3], x, y, z, goodSamples, numSamples;
vec3_t lightOrigin;
VectorSubtract( ci->bounds[0], w->lightGridOrigin, lightOrigin );
ibounds[0][0] = floor(lightOrigin[0] * w->lightGridInverseSize[0]);
ibounds[0][1] = floor(lightOrigin[1] * w->lightGridInverseSize[1]);
ibounds[0][2] = floor(lightOrigin[2] * w->lightGridInverseSize[2]);
VectorSubtract( ci->bounds[1], w->lightGridOrigin, lightOrigin );
ibounds[1][0] = ceil(lightOrigin[0] * w->lightGridInverseSize[0]);
ibounds[1][1] = ceil(lightOrigin[1] * w->lightGridInverseSize[1]);
ibounds[1][2] = ceil(lightOrigin[2] * w->lightGridInverseSize[2]);
ibounds[0][0] = CLAMP(ibounds[0][0], 0, w->lightGridSize[0]);
ibounds[0][1] = CLAMP(ibounds[0][1], 0, w->lightGridSize[1]);
ibounds[0][2] = CLAMP(ibounds[0][2], 0, w->lightGridSize[2]);
ibounds[1][0] = CLAMP(ibounds[1][0], 0, w->lightGridSize[0]);
ibounds[1][1] = CLAMP(ibounds[1][1], 0, w->lightGridSize[1]);
ibounds[1][2] = CLAMP(ibounds[1][2], 0, w->lightGridSize[2]);
/*
ri.Printf(PRINT_ALL, "surf %d bounds (%f %f %f)-(%f %f %f) ibounds (%d %d %d)-(%d %d %d)\n", i,
ci->bounds[0][0], ci->bounds[0][1], ci->bounds[0][2],
ci->bounds[1][0], ci->bounds[1][1], ci->bounds[1][2],
ibounds[0][0], ibounds[0][1], ibounds[0][2],
ibounds[1][0], ibounds[1][1], ibounds[1][2]);
*/
goodSamples = 0;
numSamples = 0;
for (x = ibounds[0][0]; x <= ibounds[1][0]; x++)
{
for (y = ibounds[0][1]; y <= ibounds[1][1]; y++)
{
for (z = ibounds[0][2]; z <= ibounds[1][2]; z++)
{
uint8_t primaryLight = primaryLightGrid[x * 8 + y * 8 * w->lightGridBounds[0] + z * 8 * w->lightGridBounds[0] * w->lightGridBounds[2]];
if (primaryLight == 0)
continue;
numSamples++;
if (primaryLight == 1)
goodSamples++;
}
}
}
// FIXME: magic number for determining whether object is mostly in sunlight
if (goodSamples > numSamples * 0.75f)
{
//ri.Printf(PRINT_ALL, "surface %d is in sunlight\n", i);
//surf->primaryLight = 1;
}
}
}
ri.Free(primaryLightGrid);
}
// load cubemaps
if (r_cubeMapping->integer)
{
// Try loading an env.json file first
R_LoadEnvironmentJson(s_worldData.baseName);
if (!tr.numCubemaps)
{
R_LoadCubemapEntities("misc_cubemap");
}
if (!tr.numCubemaps)
{
// use deathmatch spawn points as cubemaps
R_LoadCubemapEntities("info_player_deathmatch");
}
if (tr.numCubemaps)
{
R_AssignCubemapsToWorldSurfaces();
}
}
s_worldData.dataSize = (byte *)ri.Hunk_Alloc(0, h_low) - startMarker;
// only set tr.world now that we know the entire level has loaded properly
tr.world = &s_worldData;
// make sure the VAO glState entry is safe
R_BindNullVao();
// Render or load all cubemaps
if (r_cubeMapping->integer && tr.numCubemaps && glRefConfig.framebufferObject)
{
R_LoadCubemaps();
R_RenderMissingCubemaps();
}
ri.FS_FreeFile( buffer.v );
}
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