/*
* R_BuildLightmap
*/
static void R_BuildLightmap( int w, int h, qboolean deluxe, const qbyte *data, qbyte *dest, int blockWidth )
{
int x, y;
qbyte *rgba;
int bits = mapConfig.pow2MapOvrbr;
if( !data || (r_fullbright->integer && !deluxe) )
{
int val = deluxe ? 127 : 255;
for( y = 0; y < h; y++, dest )
memset( dest + y * blockWidth, val, w * LIGHTMAP_BYTES * sizeof( *dest ) );
return;
}
if( deluxe || ( !bits && !r_lighting_grayscale->integer ) )
{
int wB = w * LIGHTMAP_BYTES;
for( y = 0, rgba = dest; y < h; y++, data += wB, rgba += blockWidth )
{
memcpy( rgba, data, wB );
}
}
else
{
float scaled[3];
float intensity = (1 << bits) / 255.0f;
for( y = 0; y < h; y++ )
{
for( x = 0, rgba = dest + y * blockWidth; x < w; x++, data += LIGHTMAP_BYTES, rgba += LIGHTMAP_BYTES )
{
vec3_t normalized;
scaled[0] = (float)( (int)data[0] ) * intensity;
scaled[1] = (float)( (int)data[1] ) * intensity;
scaled[2] = (float)( (int)data[2] ) * intensity;
ColorNormalize( scaled, normalized );
// monochrome lighting: convert to grayscale
if( r_lighting_grayscale->integer ) {
vec_t grey = ColorGrayscale( normalized );
normalized[0] = normalized[1] = normalized[2] = bound( 0, grey, 1 );
}
rgba[0] = ( qbyte )( normalized[0] * 255 );
rgba[1] = ( qbyte )( normalized[1] * 255 );
rgba[2] = ( qbyte )( normalized[2] * 255 );
}
}
}
}
/** @note Defaults should match those of ufo2map, or lighting will be inconsistent between world and models */
static void SP_worldspawn (const localEntityParse_t* entData)
{
/* maximum level */
cl.mapMaxLevel = entData->maxLevel;
if (GAME_IsMultiplayer()) {
if (cl_teamnum->integer > entData->maxMultiplayerTeams || cl_teamnum->integer <= TEAM_CIVILIAN) {
Com_Printf("The selected team is not usable. "
"The map doesn't support %i teams but only %i teams\n",
cl_teamnum->integer, entData->maxMultiplayerTeams);
Cvar_SetValue("cl_teamnum", TEAM_DEFAULT);
Com_Printf("Set teamnum to %i\n", cl_teamnum->integer);
}
}
/** @todo - make sun position/color vary based on local time at location? */
const int dayLightmap = CL_GetConfigStringInteger(CS_LIGHTMAP);
/** @note Some vectors have exra elements to comply with mathlib and/or OpenGL conventions, but handled as shorter ones */
vec3_t sunAngles;
vec4_t sunColor;
vec_t sunIntensity;
if (dayLightmap) {
/* set defaults for daylight */
Vector4Set(refdef.ambientColor, 0.26, 0.26, 0.26, 1.0);
sunIntensity = 280;
VectorSet(sunAngles, -75, 100, 0);
Vector4Set(sunColor, 0.90, 0.75, 0.65, 1.0);
/* override defaults with data from worldspawn entity, if any */
if (VectorNotEmpty(entData->ambientDayColor))
VectorCopy(entData->ambientDayColor, refdef.ambientColor);
if (entData->dayLight)
sunIntensity = entData->dayLight;
if (Vector2NotEmpty(entData->daySunAngles))
Vector2Copy(entData->daySunAngles, sunAngles);
if (VectorNotEmpty(entData->daySunColor))
VectorCopy(entData->daySunColor, sunColor);
Vector4Set(refdef.sunSpecularColor, 1.0, 1.0, 0.9, 1);
} else {
/* set defaults for night light */
Vector4Set(refdef.ambientColor, 0.16, 0.16, 0.17, 1.0);
sunIntensity = 15;
VectorSet(sunAngles, -80, 220, 0);
Vector4Set(sunColor, 0.25, 0.25, 0.35, 1.0);
/* override defaults with data from worldspawn entity, if any */
if (VectorNotEmpty(entData->ambientNightColor))
VectorCopy(entData->ambientNightColor, refdef.ambientColor);
if (entData->nightLight)
sunIntensity = entData->nightLight;
if (Vector2NotEmpty(entData->nightSunAngles))
Vector2Copy(entData->nightSunAngles, sunAngles);
if (VectorNotEmpty(entData->nightSunColor))
VectorCopy(entData->nightSunColor, sunColor);
Vector4Set(refdef.sunSpecularColor, 0.5, 0.5, 0.7, 1);
}
ColorNormalize(sunColor, sunColor);
VectorScale(sunColor, sunIntensity/255.0, sunColor);
Vector4Copy(sunColor, refdef.sunDiffuseColor);
/* clamp ambient for models */
Vector4Copy(refdef.ambientColor, refdef.modelAmbientColor);
for (int i = 0; i < 3; i++)
if (refdef.modelAmbientColor[i] < MIN_AMBIENT_COMPONENT)
refdef.modelAmbientColor[i] = MIN_AMBIENT_COMPONENT;
/* scale it into a reasonable range, the clamp above ensures this will work */
while (VectorSum(refdef.modelAmbientColor) < MIN_AMBIENT_SUM)
VectorScale(refdef.modelAmbientColor, 1.25, refdef.modelAmbientColor);
AngleVectors(sunAngles, refdef.sunVector, nullptr, nullptr);
refdef.sunVector[3] = 0.0; /* to use as directional light source in OpenGL */
/** @todo Parse fog from worldspawn config */
refdef.weather = WEATHER_NONE;
refdef.fogColor[3] = 1.0;
VectorSet(refdef.fogColor, 0.75, 0.75, 0.75);
}
void MakePatchForFace( int fn, winding_t *w ){
dface_t *f;
float area;
patch_t *patch;
dplane_t *pl;
int i;
vec3_t color;
dleaf_t *leaf;
f = &dfaces[fn];
area = WindingArea( w );
totalarea += area;
patch = &patches[num_patches];
if ( num_patches == MAX_PATCHES ) {
Error( "num_patches == MAX_PATCHES" );
}
patch->next = face_patches[fn];
face_patches[fn] = patch;
patch->winding = w;
if ( f->side ) {
patch->plane = &backplanes[f->planenum];
}
else{
patch->plane = &dplanes[f->planenum];
}
if ( face_offset[fn][0] || face_offset[fn][1] || face_offset[fn][2] ) { // origin offset faces must create new planes
if ( numplanes + fakeplanes >= MAX_MAP_PLANES ) {
Error( "numplanes + fakeplanes >= MAX_MAP_PLANES" );
}
pl = &dplanes[numplanes + fakeplanes];
fakeplanes++;
*pl = *( patch->plane );
pl->dist += DotProduct( face_offset[fn], pl->normal );
patch->plane = pl;
}
WindingCenter( w, patch->origin );
VectorAdd( patch->origin, patch->plane->normal, patch->origin );
leaf = Rad_PointInLeaf( patch->origin );
patch->cluster = leaf->cluster;
if ( patch->cluster == -1 ) {
Sys_FPrintf( SYS_VRB, "patch->cluster == -1\n" );
}
patch->area = area;
if ( patch->area <= 1 ) {
patch->area = 1;
}
patch->sky = IsSky( f );
VectorCopy( texture_reflectivity[f->texinfo], patch->reflectivity );
// non-bmodel patches can emit light
if ( fn < dmodels[0].numfaces ) {
BaseLightForFace( f, patch->baselight );
ColorNormalize( patch->reflectivity, color );
for ( i = 0 ; i < 3 ; i++ )
patch->baselight[i] *= color[i];
VectorCopy( patch->baselight, patch->totallight );
}
num_patches++;
}
/*
======================
CalcTextureReflectivity_Quake2
======================
*/
void CalcTextureReflectivity_Quake2( void ){
int i;
int j, k, texels;
int color[3];
int texel;
byte *palette;
char path[1024];
float r, scale;
miptex_t *mt;
sprintf( path, "%spics/colormap.pcx", gamedir );
// get the game palette
Load256Image( path, NULL, &palette, NULL, NULL );
// allways set index 0 even if no textures
texture_reflectivity[0][0] = 0.5;
texture_reflectivity[0][1] = 0.5;
texture_reflectivity[0][2] = 0.5;
for ( i = 0 ; i < numtexinfo ; i++ )
{
// see if an earlier texinfo allready got the value
for ( j = 0 ; j < i ; j++ )
{
if ( !strcmp( texinfo[i].texture, texinfo[j].texture ) ) {
VectorCopy( texture_reflectivity[j], texture_reflectivity[i] );
break;
}
}
if ( j != i ) {
continue;
}
// load the wal file
sprintf( path, "%stextures/%s.wal", gamedir, texinfo[i].texture );
if ( TryLoadFile( path, (void **)&mt ) == -1 ) {
Sys_Printf( "Couldn't load %s\n", path );
texture_reflectivity[i][0] = 0.5;
texture_reflectivity[i][1] = 0.5;
texture_reflectivity[i][2] = 0.5;
continue;
}
texels = LittleLong( mt->width ) * LittleLong( mt->height );
color[0] = color[1] = color[2] = 0;
for ( j = 0 ; j < texels ; j++ )
{
texel = ( (byte *)mt )[LittleLong( mt->offsets[0] ) + j];
for ( k = 0 ; k < 3 ; k++ )
color[k] += palette[texel * 3 + k];
}
for ( j = 0 ; j < 3 ; j++ )
{
r = color[j] / texels / 255.0;
texture_reflectivity[i][j] = r;
}
// scale the reflectivity up, because the textures are
// so dim
scale = ColorNormalize( texture_reflectivity[i],
texture_reflectivity[i] );
if ( scale < 0.5 ) {
scale *= 2;
VectorScale( texture_reflectivity[i], scale, texture_reflectivity[i] );
}
#if 0
texture_reflectivity[i][0] = 0.5;
texture_reflectivity[i][1] = 0.5;
texture_reflectivity[i][2] = 0.5;
#endif
}
}
/**
* @brief Create lights out of patches and entity lights
* @sa LightWorld
* @sa BuildPatch
*/
void BuildLights (void)
{
int i;
light_t* l;
/* surfaces */
for (i = 0; i < MAX_MAP_FACES; i++) {
/* iterate subdivided patches */
for(const patch_t* p = face_patches[i]; p; p = p->next) {
if (VectorEmpty(p->light))
continue;
numlights[config.compile_for_day]++;
l = Mem_AllocType(light_t);
VectorCopy(p->origin, l->origin);
l->next = lights[config.compile_for_day];
lights[config.compile_for_day] = l;
l->type = emit_surface;
l->intensity = ColorNormalize(p->light, l->color);
l->intensity *= p->area * config.surface_scale;
}
}
/* entities (skip the world) */
for (i = 1; i < num_entities; i++) {
float intensity;
const char* color;
const char* target;
const entity_t* e = &entities[i];
const char* name = ValueForKey(e, "classname");
if (!Q_strstart(name, "light"))
continue;
/* remove those lights that are only for the night version */
if (config.compile_for_day) {
const int spawnflags = atoi(ValueForKey(e, "spawnflags"));
if (!(spawnflags & 1)) /* day */
continue;
}
numlights[config.compile_for_day]++;
l = Mem_AllocType(light_t);
GetVectorForKey(e, "origin", l->origin);
/* link in */
l->next = lights[config.compile_for_day];
lights[config.compile_for_day] = l;
intensity = FloatForKey(e, "light");
if (!intensity)
intensity = 300.0;
color = ValueForKey(e, "_color");
if (color && color[0] != '\0'){
if (sscanf(color, "%f %f %f", &l->color[0], &l->color[1], &l->color[2]) != 3)
Sys_Error("Invalid _color entity property given: %s", color);
ColorNormalize(l->color, l->color);
} else
VectorSet(l->color, 1.0, 1.0, 1.0);
l->intensity = intensity * config.entity_scale;
l->type = emit_point;
target = ValueForKey(e, "target");
if (target[0] != '\0' || Q_streq(name, "light_spot")) {
l->type = emit_spotlight;
l->stopdot = FloatForKey(e, "_cone");
if (!l->stopdot)
l->stopdot = 10;
l->stopdot = cos(l->stopdot * torad);
if (target[0] != '\0') { /* point towards target */
entity_t* e2 = FindTargetEntity(target);
if (!e2)
Com_Printf("WARNING: light at (%i %i %i) has missing target '%s' - e.g. create an info_null that has a 'targetname' set to '%s'\n",
(int)l->origin[0], (int)l->origin[1], (int)l->origin[2], target, target);
else {
vec3_t dest;
GetVectorForKey(e2, "origin", dest);
VectorSubtract(dest, l->origin, l->normal);
VectorNormalize(l->normal);
}
} else { /* point down angle */
const float angle = FloatForKey(e, "angle");
if (angle == ANGLE_UP) {
l->normal[0] = l->normal[1] = 0.0;
l->normal[2] = 1.0;
} else if (angle == ANGLE_DOWN) {
l->normal[0] = l->normal[1] = 0.0;
l->normal[2] = -1.0;
} else {
l->normal[2] = 0;
l->normal[0] = cos(angle * torad);
l->normal[1] = sin(angle * torad);
}
}
}
}
/* handle worldspawn light settings */
{
const entity_t* e = &entities[0];
const char* ambient, *light, *angles, *color;
float f;
int i;
if (config.compile_for_day) {
ambient = ValueForKey(e, "ambient_day");
light = ValueForKey(e, "light_day");
angles = ValueForKey(e, "angles_day");
color = ValueForKey(e, "color_day");
} else {
ambient = ValueForKey(e, "ambient_night");
light = ValueForKey(e, "light_night");
angles = ValueForKey(e, "angles_night");
color = ValueForKey(e, "color_night");
}
if (light[0] != '\0')
sun_intensity = atoi(light);
if (angles[0] != '\0') {
VectorClear(sun_angles);
if (sscanf(angles, "%f %f", &sun_angles[0], &sun_angles[1]) != 2)
Sys_Error("wrong angles values given: '%s'", angles);
AngleVectors(sun_angles, sun_normal, nullptr, nullptr);
}
if (color[0] != '\0') {
GetVectorFromString(color, sun_color);
ColorNormalize(sun_color, sun_color);
}
if (ambient[0] != '\0')
GetVectorFromString(ambient, sun_ambient_color);
/* optionally pull brightness from worldspawn */
f = FloatForKey(e, "brightness");
if (f > 0.0)
config.brightness = f;
/* saturation as well */
f = FloatForKey(e, "saturation");
if (f > 0.0)
config.saturation = f;
else
Verb_Printf(VERB_EXTRA, "Invalid saturation setting (%f) in worldspawn found\n", f);
f = FloatForKey(e, "contrast");
if (f > 0.0)
config.contrast = f;
else
Verb_Printf(VERB_EXTRA, "Invalid contrast setting (%f) in worldspawn found\n", f);
/* lightmap resolution downscale (e.g. 4 = 1 << 4) */
i = atoi(ValueForKey(e, "quant"));
if (i >= 1 && i <= 6)
config.lightquant = i;
else
Verb_Printf(VERB_EXTRA, "Invalid quant setting (%i) in worldspawn found\n", i);
}
Verb_Printf(VERB_EXTRA, "light settings:\n * intensity: %i\n * sun_angles: pitch %f yaw %f\n * sun_color: %f:%f:%f\n * sun_ambient_color: %f:%f:%f\n",
sun_intensity, sun_angles[0], sun_angles[1], sun_color[0], sun_color[1], sun_color[2], sun_ambient_color[0], sun_ambient_color[1], sun_ambient_color[2]);
Verb_Printf(VERB_NORMAL, "%i direct lights for %s lightmap\n", numlights[config.compile_for_day], (config.compile_for_day ? "day" : "night"));
}
