/tools/quake3/q3map2/light.c
C | 3039 lines | 2088 code | 493 blank | 458 comment | 638 complexity | 38f61902dbf0ca3b9a61ba69e4cbfb93 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.1, LGPL-2.0
- /* -------------------------------------------------------------------------------
- Copyright (C) 1999-2007 id Software, Inc. and contributors.
- For a list of contributors, see the accompanying CONTRIBUTORS file.
- This file is part of GtkRadiant.
- GtkRadiant 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.
- GtkRadiant 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 GtkRadiant; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- ----------------------------------------------------------------------------------
- This code has been altered significantly from its original form, to support
- several games based on the Quake III Arena engine, in the form of "Q3Map2."
- ------------------------------------------------------------------------------- */
- /* marker */
- #define LIGHT_C
- /* dependencies */
- #include "q3map2.h"
- /*
- CreateSunLight() - ydnar
- this creates a sun light
- */
- static void CreateSunLight( sun_t *sun ){
- int i;
- float photons, d, angle, elevation, da, de;
- vec3_t direction;
- light_t *light;
- /* dummy check */
- if ( sun == NULL ) {
- return;
- }
- /* fixup */
- if ( sun->numSamples < 1 ) {
- sun->numSamples = 1;
- }
- /* set photons */
- photons = sun->photons / sun->numSamples;
- /* create the right number of suns */
- for ( i = 0; i < sun->numSamples; i++ )
- {
- /* calculate sun direction */
- if ( i == 0 ) {
- VectorCopy( sun->direction, direction );
- }
- else
- {
- /*
- sun->direction[ 0 ] = cos( angle ) * cos( elevation );
- sun->direction[ 1 ] = sin( angle ) * cos( elevation );
- sun->direction[ 2 ] = sin( elevation );
- xz_dist = sqrt( x*x + z*z )
- latitude = atan2( xz_dist, y ) * RADIANS
- longitude = atan2( x, z ) * RADIANS
- */
- d = sqrt( sun->direction[ 0 ] * sun->direction[ 0 ] + sun->direction[ 1 ] * sun->direction[ 1 ] );
- angle = atan2( sun->direction[ 1 ], sun->direction[ 0 ] );
- elevation = atan2( sun->direction[ 2 ], d );
- /* jitter the angles (loop to keep random sample within sun->deviance steridians) */
- do
- {
- da = ( Random() * 2.0f - 1.0f ) * sun->deviance;
- de = ( Random() * 2.0f - 1.0f ) * sun->deviance;
- }
- while ( ( da * da + de * de ) > ( sun->deviance * sun->deviance ) );
- angle += da;
- elevation += de;
- /* debug code */
- //% Sys_Printf( "%d: Angle: %3.4f Elevation: %3.3f\n", sun->numSamples, (angle / Q_PI * 180.0f), (elevation / Q_PI * 180.0f) );
- /* create new vector */
- direction[ 0 ] = cos( angle ) * cos( elevation );
- direction[ 1 ] = sin( angle ) * cos( elevation );
- direction[ 2 ] = sin( elevation );
- }
- /* create a light */
- numSunLights++;
- light = safe_malloc( sizeof( *light ) );
- memset( light, 0, sizeof( *light ) );
- light->next = lights;
- lights = light;
- /* initialize the light */
- light->flags = LIGHT_SUN_DEFAULT;
- light->type = EMIT_SUN;
- light->fade = 1.0f;
- light->falloffTolerance = falloffTolerance;
- light->filterRadius = sun->filterRadius / sun->numSamples;
- light->style = noStyles ? LS_NORMAL : sun->style;
- /* set the light's position out to infinity */
- VectorMA( vec3_origin, ( MAX_WORLD_COORD * 8.0f ), direction, light->origin ); /* MAX_WORLD_COORD * 2.0f */
- /* set the facing to be the inverse of the sun direction */
- VectorScale( direction, -1.0, light->normal );
- light->dist = DotProduct( light->origin, light->normal );
- /* set color and photons */
- VectorCopy( sun->color, light->color );
- light->photons = photons * skyScale;
- }
- /* another sun? */
- if ( sun->next != NULL ) {
- CreateSunLight( sun->next );
- }
- }
- /*
- CreateSkyLights() - ydnar
- simulates sky light with multiple suns
- */
- static void CreateSkyLights( vec3_t color, float value, int iterations, float filterRadius, int style ){
- int i, j, numSuns;
- int angleSteps, elevationSteps;
- float angle, elevation;
- float angleStep, elevationStep;
- sun_t sun;
- /* dummy check */
- if ( value <= 0.0f || iterations < 2 ) {
- return;
- }
- /* basic sun setup */
- VectorCopy( color, sun.color );
- sun.deviance = 0.0f;
- sun.filterRadius = filterRadius;
- sun.numSamples = 1;
- sun.style = noStyles ? LS_NORMAL : style;
- sun.next = NULL;
- /* setup */
- elevationSteps = iterations - 1;
- angleSteps = elevationSteps * 4;
- angle = 0.0f;
- elevationStep = DEG2RAD( 90.0f / iterations ); /* skip elevation 0 */
- angleStep = DEG2RAD( 360.0f / angleSteps );
- /* calc individual sun brightness */
- numSuns = angleSteps * elevationSteps + 1;
- sun.photons = value / numSuns;
- /* iterate elevation */
- elevation = elevationStep * 0.5f;
- angle = 0.0f;
- for ( i = 0, elevation = elevationStep * 0.5f; i < elevationSteps; i++ )
- {
- /* iterate angle */
- for ( j = 0; j < angleSteps; j++ )
- {
- /* create sun */
- sun.direction[ 0 ] = cos( angle ) * cos( elevation );
- sun.direction[ 1 ] = sin( angle ) * cos( elevation );
- sun.direction[ 2 ] = sin( elevation );
- CreateSunLight( &sun );
- /* move */
- angle += angleStep;
- }
- /* move */
- elevation += elevationStep;
- angle += angleStep / elevationSteps;
- }
- /* create vertical sun */
- VectorSet( sun.direction, 0.0f, 0.0f, 1.0f );
- CreateSunLight( &sun );
- /* short circuit */
- return;
- }
- /*
- CreateEntityLights()
- creates lights from light entities
- */
- void CreateEntityLights( void ){
- int i, j;
- light_t *light, *light2;
- entity_t *e, *e2;
- const char *name;
- const char *target;
- vec3_t dest;
- const char *_color;
- float intensity, scale, deviance, filterRadius;
- int spawnflags, flags, numSamples;
- qboolean junior;
- /* go throught entity list and find lights */
- for ( i = 0; i < numEntities; i++ )
- {
- /* get entity */
- e = &entities[ i ];
- name = ValueForKey( e, "classname" );
- /* ydnar: check for lightJunior */
- if ( Q_strncasecmp( name, "lightJunior", 11 ) == 0 ) {
- junior = qtrue;
- }
- else if ( Q_strncasecmp( name, "light", 5 ) == 0 ) {
- junior = qfalse;
- }
- else{
- continue;
- }
- /* lights with target names (and therefore styles) are only parsed from BSP */
- target = ValueForKey( e, "targetname" );
- if ( target[ 0 ] != '\0' && i >= numBSPEntities ) {
- continue;
- }
- /* create a light */
- numPointLights++;
- light = safe_malloc( sizeof( *light ) );
- memset( light, 0, sizeof( *light ) );
- light->next = lights;
- lights = light;
- /* handle spawnflags */
- spawnflags = IntForKey( e, "spawnflags" );
- /* ydnar: quake 3+ light behavior */
- if ( wolfLight == qfalse ) {
- /* set default flags */
- flags = LIGHT_Q3A_DEFAULT;
- /* linear attenuation? */
- if ( spawnflags & 1 ) {
- flags |= LIGHT_ATTEN_LINEAR;
- flags &= ~LIGHT_ATTEN_ANGLE;
- }
- /* no angle attenuate? */
- if ( spawnflags & 2 ) {
- flags &= ~LIGHT_ATTEN_ANGLE;
- }
- }
- /* ydnar: wolf light behavior */
- else
- {
- /* set default flags */
- flags = LIGHT_WOLF_DEFAULT;
- /* inverse distance squared attenuation? */
- if ( spawnflags & 1 ) {
- flags &= ~LIGHT_ATTEN_LINEAR;
- flags |= LIGHT_ATTEN_ANGLE;
- }
- /* angle attenuate? */
- if ( spawnflags & 2 ) {
- flags |= LIGHT_ATTEN_ANGLE;
- }
- }
- /* other flags (borrowed from wolf) */
- /* wolf dark light? */
- if ( ( spawnflags & 4 ) || ( spawnflags & 8 ) ) {
- flags |= LIGHT_DARK;
- }
- /* nogrid? */
- if ( spawnflags & 16 ) {
- flags &= ~LIGHT_GRID;
- }
- /* junior? */
- if ( junior ) {
- flags |= LIGHT_GRID;
- flags &= ~LIGHT_SURFACES;
- }
- /* vortex: unnormalized? */
- if ( spawnflags & 32 ) {
- flags |= LIGHT_UNNORMALIZED;
- }
- /* vortex: distance atten? */
- if ( spawnflags & 64 ) {
- flags |= LIGHT_ATTEN_DISTANCE;
- }
- /* store the flags */
- light->flags = flags;
- /* ydnar: set fade key (from wolf) */
- light->fade = 1.0f;
- if ( light->flags & LIGHT_ATTEN_LINEAR ) {
- light->fade = FloatForKey( e, "fade" );
- if ( light->fade == 0.0f ) {
- light->fade = 1.0f;
- }
- }
- /* ydnar: set angle scaling (from vlight) */
- light->angleScale = FloatForKey( e, "_anglescale" );
- if ( light->angleScale != 0.0f ) {
- light->flags |= LIGHT_ATTEN_ANGLE;
- }
- /* set origin */
- GetVectorForKey( e, "origin", light->origin );
- light->style = IntForKey( e, "_style" );
- if ( light->style == LS_NORMAL ) {
- light->style = IntForKey( e, "style" );
- }
- if ( light->style < LS_NORMAL || light->style >= LS_NONE ) {
- Error( "Invalid lightstyle (%d) on entity %d", light->style, i );
- }
- if ( light->style != LS_NORMAL ) {
- Sys_FPrintf( SYS_WRN, "WARNING: Styled light found targeting %s\n **", target );
- }
- /* set light intensity */
- intensity = FloatForKey( e, "_light" );
- if ( intensity == 0.0f ) {
- intensity = FloatForKey( e, "light" );
- }
- if ( intensity == 0.0f ) {
- intensity = 300.0f;
- }
- /* ydnar: set light scale (sof2) */
- scale = FloatForKey( e, "scale" );
- if ( scale == 0.0f ) {
- scale = 1.0f;
- }
- intensity *= scale;
- /* ydnar: get deviance and samples */
- deviance = FloatForKey( e, "_deviance" );
- if ( deviance == 0.0f ) {
- deviance = FloatForKey( e, "_deviation" );
- }
- if ( deviance == 0.0f ) {
- deviance = FloatForKey( e, "_jitter" );
- }
- numSamples = IntForKey( e, "_samples" );
- if ( deviance < 0.0f || numSamples < 1 ) {
- deviance = 0.0f;
- numSamples = 1;
- }
- intensity /= numSamples;
- /* ydnar: get filter radius */
- filterRadius = FloatForKey( e, "_filterradius" );
- if ( filterRadius == 0.0f ) {
- filterRadius = FloatForKey( e, "_filteradius" );
- }
- if ( filterRadius == 0.0f ) {
- filterRadius = FloatForKey( e, "_filter" );
- }
- if ( filterRadius < 0.0f ) {
- filterRadius = 0.0f;
- }
- light->filterRadius = filterRadius;
- /* set light color */
- _color = ValueForKey( e, "_color" );
- if ( _color && _color[ 0 ] ) {
- sscanf( _color, "%f %f %f", &light->color[ 0 ], &light->color[ 1 ], &light->color[ 2 ] );
- if ( colorsRGB ) {
- light->color[0] = Image_LinearFloatFromsRGBFloat( light->color[0] );
- light->color[1] = Image_LinearFloatFromsRGBFloat( light->color[1] );
- light->color[2] = Image_LinearFloatFromsRGBFloat( light->color[2] );
- }
- if ( !( light->flags & LIGHT_UNNORMALIZED ) ) {
- ColorNormalize( light->color, light->color );
- }
- }
- else{
- light->color[ 0 ] = light->color[ 1 ] = light->color[ 2 ] = 1.0f;
- }
- light->extraDist = FloatForKey( e, "_extradist" );
- if ( light->extraDist == 0.0f ) {
- light->extraDist = extraDist;
- }
- light->photons = intensity;
- light->type = EMIT_POINT;
- /* set falloff threshold */
- light->falloffTolerance = falloffTolerance / numSamples;
- /* lights with a target will be spotlights */
- target = ValueForKey( e, "target" );
- if ( target[ 0 ] ) {
- float radius;
- float dist;
- sun_t sun;
- const char *_sun;
- /* get target */
- e2 = FindTargetEntity( target );
- if ( e2 == NULL ) {
- Sys_FPrintf( SYS_WRN, "WARNING: light at (%i %i %i) has missing target\n",
- (int) light->origin[ 0 ], (int) light->origin[ 1 ], (int) light->origin[ 2 ] );
- light->photons *= pointScale;
- }
- else
- {
- /* not a point light */
- numPointLights--;
- numSpotLights++;
- /* make a spotlight */
- GetVectorForKey( e2, "origin", dest );
- VectorSubtract( dest, light->origin, light->normal );
- dist = VectorNormalize( light->normal, light->normal );
- radius = FloatForKey( e, "radius" );
- if ( !radius ) {
- radius = 64;
- }
- if ( !dist ) {
- dist = 64;
- }
- light->radiusByDist = ( radius + 16 ) / dist;
- light->type = EMIT_SPOT;
- /* ydnar: wolf mods: spotlights always use nonlinear + angle attenuation */
- light->flags &= ~LIGHT_ATTEN_LINEAR;
- light->flags |= LIGHT_ATTEN_ANGLE;
- light->fade = 1.0f;
- /* ydnar: is this a sun? */
- _sun = ValueForKey( e, "_sun" );
- if ( _sun[ 0 ] == '1' ) {
- /* not a spot light */
- numSpotLights--;
- /* unlink this light */
- lights = light->next;
- /* make a sun */
- VectorScale( light->normal, -1.0f, sun.direction );
- VectorCopy( light->color, sun.color );
- sun.photons = intensity;
- sun.deviance = deviance / 180.0f * Q_PI;
- sun.numSamples = numSamples;
- sun.style = noStyles ? LS_NORMAL : light->style;
- sun.next = NULL;
- /* make a sun light */
- CreateSunLight( &sun );
- /* free original light */
- free( light );
- light = NULL;
- /* skip the rest of this love story */
- continue;
- }
- else
- {
- light->photons *= spotScale;
- }
- }
- }
- else{
- light->photons *= pointScale;
- }
- /* jitter the light */
- for ( j = 1; j < numSamples; j++ )
- {
- /* create a light */
- light2 = safe_malloc( sizeof( *light ) );
- memcpy( light2, light, sizeof( *light ) );
- light2->next = lights;
- lights = light2;
- /* add to counts */
- if ( light->type == EMIT_SPOT ) {
- numSpotLights++;
- }
- else{
- numPointLights++;
- }
- /* jitter it */
- light2->origin[ 0 ] = light->origin[ 0 ] + ( Random() * 2.0f - 1.0f ) * deviance;
- light2->origin[ 1 ] = light->origin[ 1 ] + ( Random() * 2.0f - 1.0f ) * deviance;
- light2->origin[ 2 ] = light->origin[ 2 ] + ( Random() * 2.0f - 1.0f ) * deviance;
- }
- }
- }
- /*
- CreateSurfaceLights() - ydnar
- this hijacks the radiosity code to generate surface lights for first pass
- */
- #define APPROX_BOUNCE 1.0f
- void CreateSurfaceLights( void ){
- int i;
- bspDrawSurface_t *ds;
- surfaceInfo_t *info;
- shaderInfo_t *si;
- light_t *light;
- float subdivide;
- vec3_t origin;
- clipWork_t cw;
- const char *nss;
- /* get sun shader supressor */
- nss = ValueForKey( &entities[ 0 ], "_noshadersun" );
- /* walk the list of surfaces */
- for ( i = 0; i < numBSPDrawSurfaces; i++ )
- {
- /* get surface and other bits */
- ds = &bspDrawSurfaces[ i ];
- info = &surfaceInfos[ i ];
- si = info->si;
- /* sunlight? */
- if ( si->sun != NULL && nss[ 0 ] != '1' ) {
- Sys_FPrintf( SYS_VRB, "Sun: %s\n", si->shader );
- CreateSunLight( si->sun );
- si->sun = NULL; /* FIXME: leak! */
- }
- /* sky light? */
- if ( si->skyLightValue > 0.0f ) {
- Sys_FPrintf( SYS_VRB, "Sky: %s\n", si->shader );
- CreateSkyLights( si->color, si->skyLightValue, si->skyLightIterations, si->lightFilterRadius, si->lightStyle );
- si->skyLightValue = 0.0f; /* FIXME: hack! */
- }
- /* try to early out */
- if ( si->value <= 0 ) {
- continue;
- }
- /* autosprite shaders become point lights */
- if ( si->autosprite ) {
- /* create an average xyz */
- VectorAdd( info->mins, info->maxs, origin );
- VectorScale( origin, 0.5f, origin );
- /* create a light */
- light = safe_malloc( sizeof( *light ) );
- memset( light, 0, sizeof( *light ) );
- light->next = lights;
- lights = light;
- /* set it up */
- light->flags = LIGHT_Q3A_DEFAULT;
- light->type = EMIT_POINT;
- light->photons = si->value * pointScale;
- light->fade = 1.0f;
- light->si = si;
- VectorCopy( origin, light->origin );
- VectorCopy( si->color, light->color );
- light->falloffTolerance = falloffTolerance;
- light->style = si->lightStyle;
- /* add to point light count and continue */
- numPointLights++;
- continue;
- }
- /* get subdivision amount */
- if ( si->lightSubdivide > 0 ) {
- subdivide = si->lightSubdivide;
- }
- else{
- subdivide = defaultLightSubdivide;
- }
- /* switch on type */
- switch ( ds->surfaceType )
- {
- case MST_PLANAR:
- case MST_TRIANGLE_SOUP:
- RadLightForTriangles( i, 0, info->lm, si, APPROX_BOUNCE, subdivide, &cw );
- break;
- case MST_PATCH:
- RadLightForPatch( i, 0, info->lm, si, APPROX_BOUNCE, subdivide, &cw );
- break;
- default:
- break;
- }
- }
- }
- /*
- SetEntityOrigins()
- find the offset values for inline models
- */
- void SetEntityOrigins( void ){
- int i, j, k, f;
- entity_t *e;
- vec3_t origin;
- const char *key;
- int modelnum;
- bspModel_t *dm;
- bspDrawSurface_t *ds;
- /* ydnar: copy drawverts into private storage for nefarious purposes */
- yDrawVerts = safe_malloc( numBSPDrawVerts * sizeof( bspDrawVert_t ) );
- memcpy( yDrawVerts, bspDrawVerts, numBSPDrawVerts * sizeof( bspDrawVert_t ) );
- /* set the entity origins */
- for ( i = 0; i < numEntities; i++ )
- {
- /* get entity and model */
- e = &entities[ i ];
- key = ValueForKey( e, "model" );
- if ( key[ 0 ] != '*' ) {
- continue;
- }
- modelnum = atoi( key + 1 );
- dm = &bspModels[ modelnum ];
- /* get entity origin */
- key = ValueForKey( e, "origin" );
- if ( key[ 0 ] == '\0' ) {
- continue;
- }
- GetVectorForKey( e, "origin", origin );
- /* set origin for all surfaces for this model */
- for ( j = 0; j < dm->numBSPSurfaces; j++ )
- {
- /* get drawsurf */
- ds = &bspDrawSurfaces[ dm->firstBSPSurface + j ];
- /* set its verts */
- for ( k = 0; k < ds->numVerts; k++ )
- {
- f = ds->firstVert + k;
- VectorAdd( origin, bspDrawVerts[ f ].xyz, yDrawVerts[ f ].xyz );
- }
- }
- }
- }
- /*
- PointToPolygonFormFactor()
- calculates the area over a point/normal hemisphere a winding covers
- ydnar: fixme: there has to be a faster way to calculate this
- without the expensive per-vert sqrts and transcendental functions
- ydnar 2002-09-30: added -faster switch because only 19% deviance > 10%
- between this and the approximation
- */
- #define ONE_OVER_2PI 0.159154942f //% (1.0f / (2.0f * 3.141592657f))
- float PointToPolygonFormFactor( const vec3_t point, const vec3_t normal, const winding_t *w ){
- vec3_t triVector, triNormal;
- int i, j;
- vec3_t dirs[ MAX_POINTS_ON_WINDING ];
- float total;
- float dot, angle, facing;
- /* this is expensive */
- for ( i = 0; i < w->numpoints; i++ )
- {
- VectorSubtract( w->p[ i ], point, dirs[ i ] );
- VectorNormalize( dirs[ i ], dirs[ i ] );
- }
- /* duplicate first vertex to avoid mod operation */
- VectorCopy( dirs[ 0 ], dirs[ i ] );
- /* calculcate relative area */
- total = 0.0f;
- for ( i = 0; i < w->numpoints; i++ )
- {
- /* get a triangle */
- j = i + 1;
- dot = DotProduct( dirs[ i ], dirs[ j ] );
- /* roundoff can cause slight creep, which gives an IND from acos */
- if ( dot > 1.0f ) {
- dot = 1.0f;
- }
- else if ( dot < -1.0f ) {
- dot = -1.0f;
- }
- /* get the angle */
- angle = acos( dot );
- CrossProduct( dirs[ i ], dirs[ j ], triVector );
- if ( VectorNormalize( triVector, triNormal ) < 0.0001f ) {
- continue;
- }
- facing = DotProduct( normal, triNormal );
- total += facing * angle;
- /* ydnar: this was throwing too many errors with radiosity + crappy maps. ignoring it. */
- if ( total > 6.3f || total < -6.3f ) {
- return 0.0f;
- }
- }
- /* now in the range of 0 to 1 over the entire incoming hemisphere */
- //% total /= (2.0f * 3.141592657f);
- total *= ONE_OVER_2PI;
- return total;
- }
- /*
- LightContributionTosample()
- determines the amount of light reaching a sample (luxel or vertex) from a given light
- */
- int LightContributionToSample( trace_t *trace ){
- light_t *light;
- float angle;
- float add;
- float dist;
- float addDeluxe = 0.0f, addDeluxeBounceScale = 0.25f;
- qboolean angledDeluxe = qtrue;
- float colorBrightness;
- qboolean doAddDeluxe = qtrue;
- /* get light */
- light = trace->light;
- /* clear color */
- trace->forceSubsampling = 0.0f; /* to make sure */
- VectorClear( trace->color );
- VectorClear( trace->colorNoShadow );
- VectorClear( trace->directionContribution );
- colorBrightness = RGBTOGRAY( light->color ) * ( 1.0f / 255.0f );
- /* ydnar: early out */
- if ( !( light->flags & LIGHT_SURFACES ) || light->envelope <= 0.0f ) {
- return 0;
- }
- /* do some culling checks */
- if ( light->type != EMIT_SUN ) {
- /* MrE: if the light is behind the surface */
- if ( trace->twoSided == qfalse ) {
- if ( DotProduct( light->origin, trace->normal ) - DotProduct( trace->origin, trace->normal ) < 0.0f ) {
- return 0;
- }
- }
- /* ydnar: test pvs */
- if ( !ClusterVisible( trace->cluster, light->cluster ) ) {
- return 0;
- }
- }
- /* exact point to polygon form factor */
- if ( light->type == EMIT_AREA ) {
- float factor;
- float d;
- vec3_t pushedOrigin;
- /* project sample point into light plane */
- d = DotProduct( trace->origin, light->normal ) - light->dist;
- if ( d < 3.0f ) {
- /* sample point behind plane? */
- if ( !( light->flags & LIGHT_TWOSIDED ) && d < -1.0f ) {
- return 0;
- }
- /* sample plane coincident? */
- if ( d > -3.0f && DotProduct( trace->normal, light->normal ) > 0.9f ) {
- return 0;
- }
- }
- /* nudge the point so that it is clearly forward of the light */
- /* so that surfaces meeting a light emitter don't get black edges */
- if ( d > -8.0f && d < 8.0f ) {
- VectorMA( trace->origin, ( 8.0f - d ), light->normal, pushedOrigin );
- }
- else{
- VectorCopy( trace->origin, pushedOrigin );
- }
- /* get direction and distance */
- VectorCopy( light->origin, trace->end );
- dist = SetupTrace( trace );
- if ( dist >= light->envelope ) {
- return 0;
- }
- /* ptpff approximation */
- if ( faster ) {
- /* angle attenuation */
- angle = DotProduct( trace->normal, trace->direction );
- /* twosided lighting */
- if ( trace->twoSided && angle < 0 ) {
- angle = -angle;
- /* no deluxemap contribution from "other side" light */
- doAddDeluxe = qfalse;
- }
- /* attenuate */
- angle *= -DotProduct( light->normal, trace->direction );
- if ( angle == 0.0f ) {
- return 0;
- }
- else if ( angle < 0.0f &&
- ( trace->twoSided || ( light->flags & LIGHT_TWOSIDED ) ) ) {
- angle = -angle;
- /* no deluxemap contribution from "other side" light */
- doAddDeluxe = qfalse;
- }
- /* clamp the distance to prevent super hot spots */
- dist = sqrt( dist * dist + light->extraDist * light->extraDist );
- if ( dist < 16.0f ) {
- dist = 16.0f;
- }
- add = light->photons / ( dist * dist ) * angle;
- if ( deluxemap ) {
- if ( angledDeluxe ) {
- addDeluxe = light->photons / ( dist * dist ) * angle;
- }
- else{
- addDeluxe = light->photons / ( dist * dist );
- }
- }
- }
- else
- {
- /* calculate the contribution */
- factor = PointToPolygonFormFactor( pushedOrigin, trace->normal, light->w );
- if ( factor == 0.0f ) {
- return 0;
- }
- else if ( factor < 0.0f ) {
- /* twosided lighting */
- if ( trace->twoSided || ( light->flags & LIGHT_TWOSIDED ) ) {
- factor = -factor;
- /* push light origin to other side of the plane */
- VectorMA( light->origin, -2.0f, light->normal, trace->end );
- dist = SetupTrace( trace );
- if ( dist >= light->envelope ) {
- return 0;
- }
- /* no deluxemap contribution from "other side" light */
- doAddDeluxe = qfalse;
- }
- else{
- return 0;
- }
- }
- /* also don't deluxe if the direction is on the wrong side */
- if ( DotProduct( trace->normal, trace->direction ) < 0 ) {
- /* no deluxemap contribution from "other side" light */
- doAddDeluxe = qfalse;
- }
- /* ydnar: moved to here */
- add = factor * light->add;
- if ( deluxemap ) {
- addDeluxe = add;
- }
- }
- }
- /* point/spot lights */
- else if ( light->type == EMIT_POINT || light->type == EMIT_SPOT ) {
- /* get direction and distance */
- VectorCopy( light->origin, trace->end );
- dist = SetupTrace( trace );
- if ( dist >= light->envelope ) {
- return 0;
- }
- /* clamp the distance to prevent super hot spots */
- dist = sqrt( dist * dist + light->extraDist * light->extraDist );
- if ( dist < 16.0f ) {
- dist = 16.0f;
- }
- /* angle attenuation */
- if ( light->flags & LIGHT_ATTEN_ANGLE ) {
- /* standard Lambert attenuation */
- float dot = DotProduct( trace->normal, trace->direction );
- /* twosided lighting */
- if ( trace->twoSided && dot < 0 ) {
- dot = -dot;
- /* no deluxemap contribution from "other side" light */
- doAddDeluxe = qfalse;
- }
- /* jal: optional half Lambert attenuation (http://developer.valvesoftware.com/wiki/Half_Lambert) */
- if ( lightAngleHL ) {
- if ( dot > 0.001f ) { // skip coplanar
- if ( dot > 1.0f ) {
- dot = 1.0f;
- }
- dot = ( dot * 0.5f ) + 0.5f;
- dot *= dot;
- }
- else{
- dot = 0;
- }
- }
- angle = dot;
- }
- else{
- angle = 1.0f;
- }
- if ( light->angleScale != 0.0f ) {
- angle /= light->angleScale;
- if ( angle > 1.0f ) {
- angle = 1.0f;
- }
- }
- /* attenuate */
- if ( light->flags & LIGHT_ATTEN_LINEAR ) {
- add = angle * light->photons * linearScale - ( dist * light->fade );
- if ( add < 0.0f ) {
- add = 0.0f;
- }
- if ( deluxemap ) {
- if ( angledDeluxe ) {
- addDeluxe = angle * light->photons * linearScale - ( dist * light->fade );
- }
- else{
- addDeluxe = light->photons * linearScale - ( dist * light->fade );
- }
- if ( addDeluxe < 0.0f ) {
- addDeluxe = 0.0f;
- }
- }
- }
- else
- {
- add = ( light->photons / ( dist * dist ) ) * angle;
- if ( add < 0.0f ) {
- add = 0.0f;
- }
- if ( deluxemap ) {
- if ( angledDeluxe ) {
- addDeluxe = ( light->photons / ( dist * dist ) ) * angle;
- }
- else{
- addDeluxe = ( light->photons / ( dist * dist ) );
- }
- }
- if ( addDeluxe < 0.0f ) {
- addDeluxe = 0.0f;
- }
- }
- /* handle spotlights */
- if ( light->type == EMIT_SPOT ) {
- float distByNormal, radiusAtDist, sampleRadius;
- vec3_t pointAtDist, distToSample;
- /* do cone calculation */
- distByNormal = -DotProduct( trace->displacement, light->normal );
- if ( distByNormal < 0.0f ) {
- return 0;
- }
- VectorMA( light->origin, distByNormal, light->normal, pointAtDist );
- radiusAtDist = light->radiusByDist * distByNormal;
- VectorSubtract( trace->origin, pointAtDist, distToSample );
- sampleRadius = VectorLength( distToSample );
- /* outside the cone */
- if ( sampleRadius >= radiusAtDist ) {
- return 0;
- }
- /* attenuate */
- if ( sampleRadius > ( radiusAtDist - 32.0f ) ) {
- add *= ( ( radiusAtDist - sampleRadius ) / 32.0f );
- if ( add < 0.0f ) {
- add = 0.0f;
- }
- addDeluxe *= ( ( radiusAtDist - sampleRadius ) / 32.0f );
- if ( addDeluxe < 0.0f ) {
- addDeluxe = 0.0f;
- }
- }
- }
- }
- /* ydnar: sunlight */
- else if ( light->type == EMIT_SUN ) {
- /* get origin and direction */
- VectorAdd( trace->origin, light->origin, trace->end );
- dist = SetupTrace( trace );
- /* angle attenuation */
- if ( light->flags & LIGHT_ATTEN_ANGLE ) {
- /* standard Lambert attenuation */
- float dot = DotProduct( trace->normal, trace->direction );
- /* twosided lighting */
- if ( trace->twoSided && dot < 0 ) {
- dot = -dot;
- /* no deluxemap contribution from "other side" light */
- doAddDeluxe = qfalse;
- }
- /* jal: optional half Lambert attenuation (http://developer.valvesoftware.com/wiki/Half_Lambert) */
- if ( lightAngleHL ) {
- if ( dot > 0.001f ) { // skip coplanar
- if ( dot > 1.0f ) {
- dot = 1.0f;
- }
- dot = ( dot * 0.5f ) + 0.5f;
- dot *= dot;
- }
- else{
- dot = 0;
- }
- }
- angle = dot;
- }
- else{
- angle = 1.0f;
- }
- /* attenuate */
- add = light->photons * angle;
- if ( deluxemap ) {
- if ( angledDeluxe ) {
- addDeluxe = light->photons * angle;
- }
- else{
- addDeluxe = light->photons;
- }
- if ( addDeluxe < 0.0f ) {
- addDeluxe = 0.0f;
- }
- }
- if ( add <= 0.0f ) {
- return 0;
- }
- /* VorteX: set noShadow color */
- VectorScale( light->color, add, trace->colorNoShadow );
- addDeluxe *= colorBrightness;
- if ( bouncing ) {
- addDeluxe *= addDeluxeBounceScale;
- if ( addDeluxe < 0.00390625f ) {
- addDeluxe = 0.00390625f;
- }
- }
- VectorScale( trace->direction, addDeluxe, trace->directionContribution );
- /* setup trace */
- trace->testAll = qtrue;
- VectorScale( light->color, add, trace->color );
- /* trace to point */
- if ( trace->testOcclusion && !trace->forceSunlight ) {
- /* trace */
- TraceLine( trace );
- trace->forceSubsampling *= add;
- if ( !( trace->compileFlags & C_SKY ) || trace->opaque ) {
- VectorClear( trace->color );
- VectorClear( trace->directionContribution );
- return -1;
- }
- }
- /* return to sender */
- return 1;
- }
- else {
- Error( "Light of undefined type!" );
- }
- /* VorteX: set noShadow color */
- VectorScale( light->color, add, trace->colorNoShadow );
- /* ydnar: changed to a variable number */
- if ( add <= 0.0f || ( add <= light->falloffTolerance && ( light->flags & LIGHT_FAST_ACTUAL ) ) ) {
- return 0;
- }
- addDeluxe *= colorBrightness;
- /* hack land: scale down the radiosity contribution to light directionality.
- Deluxemaps fusion many light directions into one. In a rtl process all lights
- would contribute individually to the bump map, so several light sources together
- would make it more directional (example: a yellow and red lights received from
- opposing sides would light one side in red and the other in blue, adding
- the effect of 2 directions applied. In the deluxemapping case, this 2 lights would
- neutralize each other making it look like having no direction.
- Same thing happens with radiosity. In deluxemapping case the radiosity contribution
- is modifying the direction applied from directional lights, making it go closer and closer
- to the surface normal the bigger is the amount of radiosity received.
- So, for preserving the directional lights contributions, we scale down the radiosity
- contribution. It's a hack, but there's a reason behind it */
- if ( bouncing ) {
- addDeluxe *= addDeluxeBounceScale;
- /* better NOT increase it beyond the original value
- if( addDeluxe < 0.00390625f )
- addDeluxe = 0.00390625f;
- */
- }
- if ( doAddDeluxe ) {
- VectorScale( trace->direction, addDeluxe, trace->directionContribution );
- }
- /* setup trace */
- trace->testAll = qfalse;
- VectorScale( light->color, add, trace->color );
- /* raytrace */
- TraceLine( trace );
- trace->forceSubsampling *= add;
- if ( trace->passSolid || trace->opaque ) {
- VectorClear( trace->color );
- VectorClear( trace->directionContribution );
- return -1;
- }
- /* return to sender */
- return 1;
- }
- /*
- LightingAtSample()
- determines the amount of light reaching a sample (luxel or vertex)
- */
- void LightingAtSample( trace_t *trace, byte styles[ MAX_LIGHTMAPS ], vec3_t colors[ MAX_LIGHTMAPS ] ){
- int i, lightmapNum;
- /* clear colors */
- for ( lightmapNum = 0; lightmapNum < MAX_LIGHTMAPS; lightmapNum++ )
- VectorClear( colors[ lightmapNum ] );
- /* ydnar: normalmap */
- if ( normalmap ) {
- colors[ 0 ][ 0 ] = ( trace->normal[ 0 ] + 1.0f ) * 127.5f;
- colors[ 0 ][ 1 ] = ( trace->normal[ 1 ] + 1.0f ) * 127.5f;
- colors[ 0 ][ 2 ] = ( trace->normal[ 2 ] + 1.0f ) * 127.5f;
- return;
- }
- /* ydnar: don't bounce ambient all the time */
- if ( !bouncing ) {
- VectorCopy( ambientColor, colors[ 0 ] );
- }
- /* ydnar: trace to all the list of lights pre-stored in tw */
- for ( i = 0; i < trace->numLights && trace->lights[ i ] != NULL; i++ )
- {
- /* set light */
- trace->light = trace->lights[ i ];
- /* style check */
- for ( lightmapNum = 0; lightmapNum < MAX_LIGHTMAPS; lightmapNum++ )
- {
- if ( styles[ lightmapNum ] == trace->light->style ||
- styles[ lightmapNum ] == LS_NONE ) {
- break;
- }
- }
- /* max of MAX_LIGHTMAPS (4) styles allowed to hit a sample */
- if ( lightmapNum >= MAX_LIGHTMAPS ) {
- continue;
- }
- /* sample light */
- LightContributionToSample( trace );
- if ( trace->color[ 0 ] == 0.0f && trace->color[ 1 ] == 0.0f && trace->color[ 2 ] == 0.0f ) {
- continue;
- }
- /* handle negative light */
- if ( trace->light->flags & LIGHT_NEGATIVE ) {
- VectorScale( trace->color, -1.0f, trace->color );
- }
- /* set style */
- styles[ lightmapNum ] = trace->light->style;
- /* add it */
- VectorAdd( colors[ lightmapNum ], trace->color, colors[ lightmapNum ] );
- /* cheap mode */
- if ( cheap &&
- colors[ 0 ][ 0 ] >= 255.0f &&
- colors[ 0 ][ 1 ] >= 255.0f &&
- colors[ 0 ][ 2 ] >= 255.0f ) {
- break;
- }
- }
- }
- /*
- LightContributionToPoint()
- for a given light, how much light/color reaches a given point in space (with no facing)
- note: this is similar to LightContributionToSample() but optimized for omnidirectional sampling
- */
- int LightContributionToPoint( trace_t *trace ){
- light_t *light;
- float add, dist;
- /* get light */
- light = trace->light;
- /* clear color */
- VectorClear( trace->color );
- /* ydnar: early out */
- if ( !( light->flags & LIGHT_GRID ) || light->envelope <= 0.0f ) {
- return qfalse;
- }
- /* is this a sun? */
- if ( light->type != EMIT_SUN ) {
- /* sun only? */
- if ( sunOnly ) {
- return qfalse;
- }
- /* test pvs */
- if ( !ClusterVisible( trace->cluster, light->cluster ) ) {
- return qfalse;
- }
- }
- /* ydnar: check origin against light's pvs envelope */
- if ( trace->origin[ 0 ] > light->maxs[ 0 ] || trace->origin[ 0 ] < light->mins[ 0 ] ||
- trace->origin[ 1 ] > light->maxs[ 1 ] || trace->origin[ 1 ] < light->mins[ 1 ] ||
- trace->origin[ 2 ] > light->maxs[ 2 ] || trace->origin[ 2 ] < light->mins[ 2 ] ) {
- gridBoundsCulled++;
- return qfalse;
- }
- /* set light origin */
- if ( light->type == EMIT_SUN ) {
- VectorAdd( trace->origin, light->origin, trace->end );
- }
- else{
- VectorCopy( light->origin, trace->end );
- }
- /* set direction */
- dist = SetupTrace( trace );
- /* test envelope */
- if ( dist > light->envelope ) {
- gridEnvelopeCulled++;
- return qfalse;
- }
- /* ptpff approximation */
- if ( light->type == EMIT_AREA && faster ) {
- /* clamp the distance to prevent super hot spots */
- dist = sqrt( dist * dist + light->extraDist * light->extraDist );
- if ( dist < 16.0f ) {
- dist = 16.0f;
- }
- /* attenuate */
- add = light->photons / ( dist * dist );
- }
- /* exact point to polygon form factor */
- else if ( light->type == EMIT_AREA ) {
- float factor, d;
- vec3_t pushedOrigin;
- /* see if the point is behind the light */
- d = DotProduct( trace->origin, light->normal ) - light->dist;
- if ( !( light->flags & LIGHT_TWOSIDED ) && d < -1.0f ) {
- return qfalse;
- }
- /* nudge the point so that it is clearly forward of the light */
- /* so that surfaces meeting a light emiter don't get black edges */
- if ( d > -8.0f && d < 8.0f ) {
- VectorMA( trace->origin, ( 8.0f - d ), light->normal, pushedOrigin );
- }
- else{
- VectorCopy( trace->origin, pushedOrigin );
- }
- /* calculate the contribution (ydnar 2002-10-21: [bug 642] bad normal calc) */
- factor = PointToPolygonFormFactor( pushedOrigin, trace->direction, light->w );
- if ( factor == 0.0f ) {
- return qfalse;
- }
- else if ( factor < 0.0f ) {
- if ( light->flags & LIGHT_TWOSIDED ) {
- factor = -factor;
- }
- else{
- return qfalse;
- }
- }
- /* ydnar: moved to here */
- add = factor * light->add;
- }
- /* point/spot lights */
- else if ( light->type == EMIT_POINT || light->type == EMIT_SPOT ) {
- /* clamp the distance to prevent super hot spots */
- dist = sqrt( dist * dist + light->extraDist * light->extraDist );
- if ( dist < 16.0f ) {
- dist = 16.0f;
- }
- /* attenuate */
- if ( light->flags & LIGHT_ATTEN_LINEAR ) {
- add = light->photons * linearScale - ( dist * light->fade );
- if ( add < 0.0f ) {
- add = 0.0f;
- }
- }
- else{
- add = light->photons / ( dist * dist );
- }
- /* handle spotlights */
- if ( light->type == EMIT_SPOT ) {
- float distByNormal, radiusAtDist, sampleRadius;
- vec3_t pointAtDist, distToSample;
- /* do cone calculation */
- distByNormal = -DotProduct( trace->displacement, light->normal );
- if ( distByNormal < 0.0f ) {
- return qfalse;
- }
- VectorMA( light->origin, distByNormal, light->normal, pointAtDist );
- radiusAtDist = light->radiusByDist * distByNormal;
- VectorSubtract( trace->origin, pointAtDist, distToSample );
- sampleRadius = VectorLength( distToSample );
- /* outside the cone */
- if ( sampleRadius >= radiusAtDist ) {
- return qfalse;
- }
- /* attenuate */
- if ( sampleRadius > ( radiusAtDist - 32.0f ) ) {
- add *= ( ( radiusAtDist - sampleRadius ) / 32.0f );
- }
- }
- }
- /* ydnar: sunlight */
- else if ( light->type == EMIT_SUN ) {
- /* attenuate */
- add = light->photons;
- if ( add <= 0.0f ) {
- return qfalse;
- }
- /* setup trace */
- trace->testAll = qtrue;
- VectorScale( light->color, add, trace->color );
- /* trace to point */
- if ( trace->testOcclusion && !trace->forceSunlight ) {
- /* trace */
- TraceLine( trace );
- if ( !( trace->compileFlags & C_SKY ) || trace->opaque ) {
- VectorClear( trace->color );
- return -1;
- }
- }
- /* return to sender */
- return qtrue;
- }
- /* unknown light type */
- else{
- return qfalse;
- }
- /* ydnar: changed to a variable number */
- if ( add <= 0.0f || ( add <= light->falloffTolerance && ( light->flags & LIGHT_FAST_ACTUAL ) ) ) {
- return qfalse;
- }
- /* setup trace */
- trace->testAll = qfalse;
- VectorScale( light->color, add, trace->color );
- /* trace */
- TraceLine( trace );
- if ( trace->passSolid ) {
- VectorClear( trace->color );
- return qfalse;
- }
- /* we have a valid sample */
- return qtrue;
- }
- /*
- TraceGrid()
- grid samples are for quickly determining the lighting
- of dynamically placed entities in the world
- */
- #define MAX_CONTRIBUTIONS 32768
- typedef struct
- {
- vec3_t dir;
- vec3_t color;
- vec3_t ambient;
- int style;
- }
- contribution_t;
- void TraceGrid( int num ){
- int i, j, x, y, z, mod, numCon, numStyles;
- float d, step;
- vec3_t baseOrigin, cheapColor, color, thisdir;
- rawGridPoint_t *gp;
- bspGridPoint_t *bgp;
- contribution_t contributions[ MAX_CONTRIBUTIONS ];
- trace_t trace;
- /* get grid points */
- gp = &rawGridPoints[ num ];
- bgp = &bspGridPoints[ num ];
- /* get grid origin */
- mod = num;
- z = mod / ( gridBounds[ 0 ] * gridBounds[ 1 ] );
- mod -= z * ( gridBounds[ 0 ] * gridBounds[ 1 ] );
- y = mod / gridBounds[ 0 ];
- mod -= y * gridBounds[ 0 ];
- x = mod;
- trace.origin[ 0 ] = gridMins[ 0 ] + x * gridSize[ 0 ];
- trace.origin[ 1 ] = gridMins[ 1 ] + y * gridSize[ 1 ];
- trace.origin[ 2 ] = gridMins[ 2 ] + z * gridSize[ 2 ];
- /* set inhibit sphere */
- if ( gridSize[ 0 ] > gridSize[ 1 ] && gridSize[ 0 ] > gridSize[ 2 ] ) {
- trace.inhibitRadius = gridSize[ 0 ] * 0.5f;
- }
- else if ( gridSize[ 1 ] > gridSize[ 0 ] && gridSize[ 1 ] > gridSize[ 2 ] ) {
- trace.inhibitRadius = gridSize[ 1 ] * 0.5f;
- }
- else{
- trace.inhibitRadius = gridSize[ 2 ] * 0.5f;
- }
- /* find point cluster */
- trace.cluster = ClusterForPointExt( trace.origin, GRID_EPSILON );
- if ( trace.cluster < 0 ) {
- /* try to nudge the origin around to find a valid point */
- VectorCopy( trace.origin, baseOrigin );
- for ( step = 0; ( step += 0.005 ) <= 1.0; )
- {
- VectorCopy( baseOrigin, trace.origin );
- trace.origin[ 0 ] += step * ( Random() - 0.5 ) * gridSize[0];
- trace.origin[ 1 ] += step * ( Random() - 0.5 ) * gridSize[1];
- trace.origin[ 2 ] += step * ( Random() - 0.5 ) * gridSize[2];
- /* ydnar: changed to find cluster num */
- trace.cluster = ClusterForPointExt( trace.origin, VERTEX_EPSILON );
- if ( trace.cluster >= 0 ) {
- break;
- }
- }
- /* can't find a valid point at all */
- if ( step > 1.0 ) {
- return;
- }
- }
- /* setup trace */
- trace.testOcclusion = !noTrace;
- trace.forceSunlight = qfalse;
- trace.recvShadows = WORLDSPAWN_RECV_SHADOWS;
- trace.numSurfaces = 0;
- trace.surfaces = NULL;
- trace.numLights = 0;
- trace.lights = NULL;
- /* clear */
- numCon = 0;
- VectorClear( cheapColor );
- /* trace to all the lights, find the major light direction, and divide the
- total light between that along the direction and the remaining in the ambient */
- for ( trace.light = lights; trace.light != NULL; trace.light = trace.light->next )
- {
- float addSize;
- /* sample light */
- if ( !LightContributionToPoint( &trace ) ) {
- continue;
- }
- /* handle negative light */
- if ( trace.light->flags & LIGHT_NEGATIVE ) {
- VectorScale( trace.color, -1.0f, trace.color );
- }
- /* add a contribution */
- VectorCopy( trace.color, contributions[ numCon ].color );
- VectorCopy( trace.direction, contributions[ numCon ].dir );
- VectorClear( contributions[ numCon ].ambient );
- contributions[ numCon ].style = trace.light->style;
- numCon++;
- /* push average direction around */
- addSize = VectorLength( trace.color );
- VectorMA( gp->dir, addSize, trace.direction, gp->dir );
- /* stop after a while */
- if ( numCon >= ( MAX_CONTRIBUTIONS - 1 ) ) {
- break;
- }
- /* ydnar: cheap mode */
- VectorAdd( cheapColor, trace.color, cheapColor );
- if ( cheapgrid && cheapColor[ 0 ] >= 255.0f && cheapColor[ 1 ] >= 255.0f && cheapColor[ 2 ] >= 255.0f ) {
- break;
- }
- }
- /////// Floodlighting for point //////////////////
- //do our floodlight ambient occlusion loop, and add a single contribution based on the brightest dir
- if ( floodlighty ) {
- int k;
- float addSize, f;
- vec3_t dir = { 0, 0, 1 };
- float ambientFrac = 0.25f;
- trace.testOcclusion = qtrue;
- trace.forceSunlight = qfalse;
- trace.inhibitRadius = DEFAULT_INHIBIT_RADIUS;
- trace.testAll = qtrue;
- for ( k = 0; k < 2; k++ )
- {
- if ( k == 0 ) { // upper hemisphere
- trace.normal[0] = 0;
- trace.normal[1] = 0;
- trace.normal[2] = 1;
- }
- else //lower hemisphere
- {
- trace.normal[0] = 0;
- trace.normal[1] = 0;
- trace.normal[2] = -1;
- }
- f = FloodLightForSample( &trace, floodlightDistance, floodlight_lowquality );
- /* add a fraction as pure ambient, half as top-down direction */
- contributions[ numCon ].color[0] = floodlightRGB[0] * floodlightIntensity * f * ( 1.0f - ambientFrac );
- contributions[ numCon ].color[1] = floodlightRGB[1] * floodlightIntensity * f * ( 1.0f - ambientFrac );
- contributions[ numCon ].color[2] = floodlightRGB[2] * floodlightIntensity * f * ( 1.0f - ambientFrac );
- contributions[ numCon ].ambient[0] = floodlightRGB[0] * floodlightIntensity * f * ambientFrac;
- contributions[ numCon ].ambient[1] = floodlightRGB[1] * floodlightIntensity * f * ambientFrac;
- contributions[ numCon ].ambient[2] = floodlightRGB[2] * floodlightIntensity * f * ambientFrac;
- contributions[ numCon ].dir[0] = dir[0];
- contributions[ numCon ].dir[1] = dir[1];
- contributions[ numCon ].dir[2] = dir[2];
- contributions[ numCon ].style = 0;
- /* push average direction around */
- addSize = VectorLength( contributions[ numCon ].color );
- VectorMA( gp->dir, addSize, dir, gp->dir );
- numCon++;
- }
- }
- /////////////////////
- /* normalize to get primary light direction */
- VectorNormalize( gp->dir, thisdir );
- /* now that we have identified the primary light direction,
- go back and separate all the light into directed and ambient */
- numStyles = 1;
- for ( i = 0; i < numCon; i++ )
- {
- /* get relative directed strength */
- d = DotProduct( contributions[ i ].dir, thisdir );
- /* we map 1 to gridDirectionality, and 0 to gridAmbientDirectionality */
- d = gridAmbientDirectionality + d * ( gridDirectionality - gridAmbientDirectionality );
- if ( d < 0.0f ) {
- d = 0.0f;
- }
- /* find appropriate style */
- for ( j = 0; j < numStyles; j++ )
- {
- if ( gp->styles[ j ] == contributions[ i ].style ) {
- break;
- }
- }
- /* style not found? */
- if ( j >= numStyles ) {
- /* add a new style */
- if ( numStyles < MAX_LIGHTMAPS ) {
- gp->styles[ numStyles ] = contributions[ i ].style;
- bgp->styles[ numStyles ] = contributions[ i ].style;
- numStyles++;
- //% Sys_Printf( "(%d, %d) ", num, contributions[ i ].style );
- }
- /* fallback */
- else{
- j = 0;
- }
- }
- /* add the directed color */
- VectorMA( gp->directed[ j ], d, contributions[ i ].color, gp->directed[ j ] );
- /* ambient light will be at 1/4 the value of directed light */
- /* (ydnar: nuke this in favor of more dramatic lighting?) */
- /* (PM: how about actually making it work? d=1 when it got here for single lights/sun :P */
- // d = 0.25f;
- /* (Hobbes: always setting it to .25 is hardly any better) */
- d = 0.25f * ( 1.0f - d );
- VectorMA( gp->ambient[ j ], d, contributions[ i ].color, gp->ambient[ j ] );
- VectorAdd( gp->ambient[ j ], contributions[ i ].ambient, gp->ambient[ j ] );
- /*
- * div0:
- * the total light average = ambient value + 0.25 * sum of all directional values
- * we can also get the total light average as 0.25 * the sum of all contributions
- *
- * 0.25 * sum(contribution_i) == ambient + 0.25 * sum(d_i contribution_i)
- *
- * THIS YIELDS:
- * ambient == 0.25 * sum((1 - d_i) contribution_i)
- *
- * So, 0.25f * (1.0f - d) IS RIGHT. If you want to tune it, tune d BEFORE.
- */
- }
- /* store off sample */
- for ( i = 0; i < MAX_LIGHTMAPS; i++ )
- {
- #if 0
- /* do some fudging to keep the ambient from being too low (2003-07-05: 0.25 -> 0.125) */
- if ( !bouncing ) {
- VectorMA( gp->ambient[ i ], 0.125f, gp->directed[ i ], gp->ambient[ i ] );
- }
- #endif
- /* set minimum light and copy off to bytes */
- VectorCopy( gp->ambient[ i ], color );
- for ( j = 0; j < 3; j++ )
- if ( color[ j ] < minGridLight[ j ] ) {
- color[ j ] = minGridLight[ j ];
- }
- /* vortex: apply gridscale and gridambientscale here */
- ColorToBytes( color, bgp->ambient[ i ], gridScale * gridAmbientScale );
- ColorToBytes( gp->directed[ i ], bgp->directed[ i ], gridScale );
- }
- /* debug code */
- #if 0
- //% Sys_FPrintf( SYS_VRB, "%10d %10d %10d ", &gp->ambient[ 0 ][ 0 ], &gp->ambient[ 0 ][ 1 ], &gp->ambient[ 0 ][ 2 ] );
- Sys_FPrintf( SYS_VRB, "%9d Amb: (%03.1f %03.1f %03.1f) Dir: (%03.1f %03.1f %03.1f)\n",
- num,
- gp->ambient[ 0 ][ 0 ], gp->ambient[ 0 ][ 1 ], gp->ambient[ 0 ][ 2 ],
- gp->directed[ 0 ][ 0 ], gp->directed[ 0 ][ 1 ], gp->directed[ 0 ][ 2 ] );
- #endif
- /* store direction */
- NormalToLatLong( thisdir, bgp->latLong );
- }
- /*
- SetupGrid()
- calculates the size of the lightgrid and allocates memory
- */
- void SetupGrid( void ){
- int i, j;
- vec3_t maxs, oldGridSize;
- const char *value;
- char temp[ 64 ];
- /* don't do this if not grid lighting */
- if ( noGridLighting ) {
- return;
- }
- /* ydnar: set grid size */
- value = ValueForKey( &entities[ 0 ], "gridsize" );
- if ( value[ 0 ] != '\0' ) {
- sscanf( value, "%f %f %f", &gridSize[ 0 ], &gridSize[ 1 ], &gridSize[ 2 ] );
- }
- /* quantize it */
- VectorCopy( gridSize, oldGridSize );
- for ( i = 0; i < 3; i++ )
- gridSize[ i ] = gridSize[ i ] >= 8.0f ? floor( gridSize[ i ] ) : 8.0f;
- /* ydnar: increase gridSize until grid count is smaller than max allowed */
- numRawGridPoints = MAX_MAP_LIGHTGRID + 1;
- j = 0;
- while ( numRawGridPoints > MAX_MAP_LIGHTGRID )
- {
- /* get world bounds */
- for ( i = 0; i < 3; i++ )
- {
- gridMins[ i ] = gridSize[ i ] * ceil( bspModels[ 0 ].mins[ i ] / gridSize[ i ] );
- maxs[ i ] = gridSize[ i ] * floor( bspModels[ 0 ].maxs[ i ] / gridSize[ i ] );
- gridBounds[ i ] = ( maxs[ i ] - gridMins[ i ] ) / gridSize[ i ] + 1;
- }
- /* set grid size */
- numRawGridPoints = gridBounds[ 0 ] * gridBounds[ 1 ] * gridBounds[ 2 ];
- /* increase grid size a bit */
- if ( numRawGridPoints > MAX_MAP_LIGHTGRID ) {
- gridSize[ j++ % 3 ] += 16.0f;
- }
- }
- /* print it */
- Sys_Printf( "Grid size = { %1.0f, %1.0f, %1.0f }\n", gridSize[ 0 ], gridSize[ 1 ], gridSize[ 2 ] );
- /* different? */
- if ( !VectorCompare( gridSize, oldGridSize ) ) {
- sprintf( temp, "%.0f %.0f %.0f", gridSize[ 0 ], gridSize[ 1 ], gridSize[ 2 ] );
- SetKeyValue( &entities[ 0 ], "gridsize", (const char*) temp );
- Sys_FPrintf( SYS_VRB, "Storing adjusted grid size\n" );
- }
- /* 2nd variable. fixme: is this silly? */
- numBSPGridPoints = numRawGridPoints;
- /* allocate lightgrid */
- rawGridPoints = safe_malloc( numRawGridPoints * sizeof( *rawGridPoints ) );
- memset( rawGridPoints, 0, numRawGridPoints * sizeof( *rawGridPoints ) );
- if ( bspGridPoints != NULL ) {
- free( bspGridPoints );
- }
- bspGridPoints = safe_malloc( numBSPGridPoints * sizeof( *bspGridPoints ) );
- memset( bspGridPoints, 0, numBSPGridPoints * sizeof( *bspGridPoints ) );
- /* clear lightgrid */
- for ( i = 0; i < numRawGridPoints; i++ )
- {
- VectorCopy( ambientColor, rawGridPoints[ i ].ambient[ j ] );
- rawGridPoints[ i ].styles[ 0 ] = LS_NORMAL;
- bspGridPoints[ i ].styles[ 0 ] = LS_NORMAL;
- for ( j = 1; j < MAX_LIGHTMAPS; j++ )
- {
- rawGridPoints[ i ].styles[ j ] = LS_NONE;
- bspGridPoints[ i ].styles[ j ] = LS_NONE;
- }
- }
- /* note it */
- Sys_Printf( "%9d grid points\n", numRawGridPoints );
- }
- /*
- LightWorld()
- does what it says...
- */
- void LightWorld( const char *BSPFilePath, qboolean fastAllocate ){
- vec3_t color;
- float f;
- int b, bt;
- qboolean minVertex, minGrid;
- const char *value;
- /* ydnar: smooth normals */
- if ( shade ) {
- Sys_Printf( "--- SmoothNormals ---\n" );
- SmoothNormals();
- }
- /* determine the number of grid points */
- Sys_Printf( "--- SetupGrid ---\n" );
- SetupGrid();
- /* find the optional minimum lighting values */
- GetVectorForKey( &entities[ 0 ], "_color", color );
- if ( VectorLength( color ) == 0.0f ) {
- VectorSet( color, 1.0, 1.0, 1.0 );
- }
- if ( colorsRGB ) {
- color[0] = Image_LinearFloatFromsRGBFloat( color[0] );
- color[1] = Image_LinearFloatFromsRGBFloat( color[1] );
- color[2] = Image_LinearFloatFromsRGBFloat( color[2] );
- }
- /* ambient */
- f = FloatForKey( &entities[ 0 ], "_ambient" );
- if ( f == 0.0f ) {
- f = FloatForKey( &entities[ 0 ], "ambient" );
- }
- VectorScale( color, f, ambientColor );
- /* minvertexlight */
- minVertex = qfalse;
- value = ValueForKey( &entities[ 0 ], "_minvertexlight" );
- if ( value[ 0 ] != '\0' ) {
- minVertex = qtrue;
- f = atof( value );
- VectorScale( color, f, minVertexLight );
- }
- /* mingridlight */
- minGrid = qfalse;
- value = ValueForKey( &entities[ 0 ], "_mingridlight" );
- if ( value[ 0 ] != '\0' ) {
- minGrid = qtrue;
- f = atof( value );
- VectorScale( color, f, minGridLight );
- }
- /* minlight */
- value = ValueForKey( &entities[ 0 ], "_minlight" );
- if ( value[ 0 ] != '\0' ) {
- f = atof( value );
- VectorScale( color, f, minLight );
- if ( minVertex == qfalse ) {
- VectorScale( color, f, minVertexLight );
- }
- if ( minGrid == qfalse ) {
- VectorScale( color, f, minGridLight );
- }
- }
- /* create world lights */
- Sys_FPrintf( SYS_VRB, "--- CreateLights ---\n" );
- CreateEntityLights();
- CreateSurfaceLights();
- Sys_Printf( "%9d point lights\n", numPointLights );
- Sys_Printf( "%9d spotlights\n", numSpotLights );
- Sys_Printf( "%9d diffuse (area) lights\n", numDiffuseLights );
- Sys_Printf( "%9d sun/sky lights\n", numSunLights );
- /* calculate lightgrid */
- if ( !noGridLighting ) {
- /* ydnar: set up light envelopes */
- SetupEnvelopes( qtrue, fastgrid );
- Sys_Printf( "--- TraceGrid ---\n" );
- inGrid = qtrue;
- RunThreadsOnIndividual( numRawGridPoints, qtrue, TraceGrid );
- inGrid = qfalse;
- Sys_Printf( "%d x %d x %d = %d grid\n",
- gridBounds[ 0 ], gridBounds[ 1 ], gridBounds[ 2 ], numBSPGridPoints );
- /* ydnar: emit statistics on light culling */
- Sys_FPrintf( SYS_VRB, "%9d grid points envelope culled\n", gridEnvelopeCulled );
- Sys_FPrintf( SYS_VRB, "%9d grid points bounds culled\n", gridBoundsCulled );
- }
- /* slight optimization to remove a sqrt */
- subdivideThreshold *= subdivideThreshold;
- /* map the world luxels */
- Sys_Printf( "--- MapRawLightmap ---\n" );
- RunThreadsOnIndividual( numRawLightmaps, qtrue, MapRawLightmap );
- Sys_Printf( "%9d luxels\n", numLuxels );
- Sys_Printf( "%9d luxels mapped\n", numLuxelsMapped );
- Sys_Printf( "%9d luxels occluded\n", numLuxelsOccluded );
- /* dirty them up */
- if ( dirty ) {
- Sys_Printf( "--- DirtyRawLightmap ---\n" );
- RunThreadsOnIndividual( numRawLightmaps, qtrue, DirtyRawLightmap );
- }
- /* floodlight pass */
- FloodlightRawLightmaps();
- /* ydnar: set up light envelopes */
- SetupEnvelopes( qfalse, fast );
- /* light up my world */
- lightsPlaneCulled = 0;
- lightsEnvelopeCulled = 0;
- lightsBoundsCulled = 0;
- lightsClusterCulled = 0;
- Sys_Printf( "--- IlluminateRawLightmap ---\n" );
- RunThreadsOnIndividual( numRawLightmaps, qtrue, IlluminateRawLightmap );
- Sys_Printf( "%9d luxels illuminated\n", numLuxelsIlluminated );
- StitchSurfaceLightmaps();
- Sys_Printf( "--- IlluminateVertexes ---\n" );
- RunThreadsOnIndividual( numBSPDrawSurfaces, qtrue, IlluminateVertexes );
- Sys_Printf( "%9d vertexes illuminated\n", numVertsIlluminated );
- /* ydnar: emit statistics on light culling */
- Sys_FPrintf( SYS_VRB, "%9d lights plane culled\n", lightsPlaneCulled );
- Sys_FPrintf( SYS_VRB, "%9d lights envelope culled\n", lightsEnvelopeCulled );
- Sys_FPrintf( SYS_VRB, "%9d lights bounds culled\n", lightsBoundsCulled );
- Sys_FPrintf( SYS_VRB, "%9d lights cluster culled\n", lightsClusterCulled );
- /* radiosity */
- b = 1;
- bt = bounce;
- while ( bounce > 0 )
- {
- /* store off the bsp between bounces */
- StoreSurfaceLightmaps( fastAllocate );
- UnparseEntities();
- Sys_Printf( "Writing %s\n", BSPFilePath );
- WriteBSPFile( BSPFilePath );
- /* note it */
- Sys_Printf( "\n--- Radiosity (bounce %d of %d) ---\n", b, bt );
- /* flag bouncing */
- bouncing = qtrue;
- VectorClear( ambientColor );
- floodlighty = qfalse;
- /* generate diffuse lights */
- RadFreeLights();
- RadCreateDiffuseLights();
- /* setup light envelopes */
- SetupEnvelopes( qfalse, fastbounce );
- if ( numLights == 0 ) {
- Sys_Printf( "No diffuse light to calculate, ending radiosity.\n" );
- return;
- }
- /* add to lightgrid */
- if ( bouncegrid ) {
- gridEnvelopeCulled = 0;
- gridBoundsCulled = 0;
- Sys_Printf( "--- BounceGrid ---\n" );
- inGrid = qtrue;
- RunThreadsOnIndividual( numRawGridPoints, qtrue, TraceGrid );
- inGrid = qfalse;
- Sys_FPrintf( SYS_VRB, "%9d grid points envelope culled\n", gridEnvelopeCulled );
- Sys_FPrintf( SYS_VRB, "%9d grid points bounds culled\n", gridBoundsCulled );
- }
- /* light up my world */
- lightsPlaneCulled = 0;
- lightsEnvelopeCulled = 0;
- lightsBoundsCulled = 0;
- lightsClusterCulled = 0;
- Sys_Printf( "--- IlluminateRawLightmap ---\n" );
- RunThreadsOnIndividual( numRawLightmaps, qtrue, IlluminateRawLightmap );
- Sys_Printf( "%9d luxels illuminated\n", numLuxelsIlluminated );
- Sys_Printf( "%9d vertexes illuminated\n", numVertsIlluminated );
- StitchSurfaceLightmaps();
- Sys_Printf( "--- IlluminateVertexes ---\n" );
- RunThreadsOnIndividual( numBSPDrawSurfaces, qtrue, IlluminateVertexes );
- Sys_Printf( "%9d vertexes illuminated\n", numVertsIlluminated );
- /* ydnar: emit statistics on light culling */
- Sys_FPrintf( SYS_VRB, "%9d lights plane culled\n", lightsPlaneCulled );
- Sys_FPrintf( SYS_VRB, "%9d lights envelope culled\n", lightsEnvelopeCulled );
- Sys_FPrintf( SYS_VRB, "%9d lights bounds culled\n", lightsBoundsCulled );
- Sys_FPrintf( SYS_VRB, "%9d lights cluster culled\n", lightsClusterCulled );
- /* interate */
- bounce--;
- b++;
- }
- /* ydnar: store off lightmaps */
- StoreSurfaceLightmaps( fastAllocate );
- }
- /*
- LoadSurfaceFlags()
- added by spoon to get back the changed surfaceflags
- from tex file
- */
- void LoadSurfaceFlags( char *filename ) {
- int i;
- for( i = 0; i < numBSPShaders; i++ ) {
- shaderInfo_t *si;
- si = ShaderInfoForShader( bspShaders[i].shader );
- bspShaders[ i ].surfaceFlags = si->surfaceFlags;
- }
- }
- /*
- LightMain()
- main routine for light processing
- */
- int LightMain( int argc, char **argv ){
- int i;
- float f;
- char BSPFilePath[ 1024 ];
- char surfaceFilePath[ 1024 ];
- BSPFilePath[0] = 0;
- surfaceFilePath[0] = 0;
- const char *value;
- int lightmapMergeSize = 0;
- qboolean lightSamplesInsist = qfalse;
- qboolean fastAllocate = qfalse;
- /* note it */
- Sys_Printf( "--- Light ---\n" );
- Sys_Printf( "--- ProcessGameSpecific ---\n" );
- /* set standard game flags */
- wolfLight = game->wolfLight;
- if ( wolfLight == qtrue ) {
- Sys_Printf( " lightning model: wolf\n" );
- }
- else{
- Sys_Printf( " lightning model: quake3\n" );
- }
- lmCustomSize = game->lightmapSize;
- Sys_Printf( " lightmap size: %d x %d pixels\n", lmCustomSize, lmCustomSize );
- lightmapGamma = game->lightmapGamma;
- Sys_Printf( " lightning gamma: %f\n", lightmapGamma );
- lightmapsRGB = game->lightmapsRGB;
- if ( lightmapsRGB ) {
- Sys_Printf( " lightmap colorspace: sRGB\n" );
- }
- else{
- Sys_Printf( " lightmap colorspace: linear\n" );
- }
- texturesRGB = game->texturesRGB;
- if ( texturesRGB ) {
- Sys_Printf( " texture colorspace: sRGB\n" );
- }
- else{
- Sys_Printf( " texture colorspace: linear\n" );
- }
- colorsRGB = game->colorsRGB;
- if ( colorsRGB ) {
- Sys_Printf( " _color colorspace: sRGB\n" );
- }
- else{
- Sys_Printf( " _color colorspace: linear\n" );
- }
- lightmapCompensate = game->lightmapCompensate;
- Sys_Printf( " lightning compensation: %f\n", lightmapCompensate );
- lightmapExposure = game->lightmapExposure;
- Sys_Printf( " lightning exposure: %f\n", lightmapExposure );
- gridScale = game->gridScale;
- Sys_Printf( " lightgrid scale: %f\n", gridScale );
- gridAmbientScale = game->gridAmbientScale;
- Sys_Printf( " lightgrid ambient scale: %f\n", gridAmbientScale );
- lightAngleHL = game->lightAngleHL;
- if ( lightAngleHL ) {
- Sys_Printf( " half lambert light angle attenuation enabled \n" );
- }
- noStyles = game->noStyles;
- if ( noStyles == qtrue ) {
- Sys_Printf( " shader lightstyles hack: disabled\n" );
- }
- else{
- Sys_Printf( " shader lightstyles hack: enabled\n" );
- }
- patchShadows = game->patchShadows;
- if ( patchShadows == qtrue ) {
- Sys_Printf( " patch shadows: enabled\n" );
- }
- else{
- Sys_Printf( " patch shadows: disabled\n" );
- }
- deluxemap = game->deluxeMap;
- deluxemode = game->deluxeMode;
- if ( deluxemap == qtrue ) {
- if ( deluxemode ) {
- Sys_Printf( " deluxemapping: enabled with tangentspace deluxemaps\n" );
- }
- else{
- Sys_Printf( " deluxemapping: enabled with modelspace deluxemaps\n" );
- }
- }
- else{
- Sys_Printf( " deluxemapping: disabled\n" );
- }
- Sys_Printf( "--- ProcessCommandLine ---\n" );
- /* process commandline arguments */
- for ( i = 1; i < ( argc - 1 ); i++ )
- {
- /* lightsource scaling */
- if ( !strcmp( argv[ i ], "-point" ) || !strcmp( argv[ i ], "-pointscale" ) ) {
- f = atof( argv[ i + 1 ] );
- pointScale *= f;
- spotScale *= f;
- Sys_Printf( "Spherical point (entity) light scaled by %f to %f\n", f, pointScale );
- Sys_Printf( "Spot point (entity) light scaled by %f to %f\n", f, spotScale );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-spherical" ) || !strcmp( argv[ i ], "-sphericalscale" ) ) {
- f = atof( argv[ i + 1 ] );
- pointScale *= f;
- Sys_Printf( "Spherical point (entity) light scaled by %f to %f\n", f, pointScale );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-spot" ) || !strcmp( argv[ i ], "-spotscale" ) ) {
- f = atof( argv[ i + 1 ] );
- spotScale *= f;
- Sys_Printf( "Spot point (entity) light scaled by %f to %f\n", f, spotScale );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-area" ) || !strcmp( argv[ i ], "-areascale" ) ) {
- f = atof( argv[ i + 1 ] );
- areaScale *= f;
- Sys_Printf( "Area (shader) light scaled by %f to %f\n", f, areaScale );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-sky" ) || !strcmp( argv[ i ], "-skyscale" ) ) {
- f = atof( argv[ i + 1 ] );
- skyScale *= f;
- Sys_Printf( "Sky/sun light scaled by %f to %f\n", f, skyScale );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-bouncescale" ) ) {
- f = atof( argv[ i + 1 ] );
- bounceScale *= f;
- Sys_Printf( "Bounce (radiosity) light scaled by %f to %f\n", f, bounceScale );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-scale" ) ) {
- f = atof( argv[ i + 1 ] );
- pointScale *= f;
- spotScale *= f;
- areaScale *= f;
- skyScale *= f;
- bounceScale *= f;
- Sys_Printf( "All light scaled by %f\n", f );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-gridscale" ) ) {
- f = atof( argv[ i + 1 ] );
- Sys_Printf( "Grid lightning scaled by %f\n", f );
- gridScale *= f;
- i++;
- }
- else if ( !strcmp( argv[ i ], "-gridambientscale" ) ) {
- f = atof( argv[ i + 1 ] );
- Sys_Printf( "Grid ambient lightning scaled by %f\n", f );
- gridAmbientScale *= f;
- i++;
- }
- else if ( !strcmp( argv[ i ], "-griddirectionality" ) ) {
- f = atof( argv[ i + 1 ] );
- if ( f > 1 ) {
- f = 1;
- }
- if ( f < gridAmbientDirectionality ) {
- gridAmbientDirectionality = f;
- }
- Sys_Printf( "Grid directionality is %f\n", f );
- gridDirectionality = f;
- i++;
- }
- else if ( !strcmp( argv[ i ], "-gridambientdirectionality" ) ) {
- f = atof( argv[ i + 1 ] );
- if ( f < -1 ) {
- f = -1;
- }
- if ( f > gridDirectionality ) {
- gridDirectionality = f;
- }
- Sys_Printf( "Grid ambient directionality is %f\n", f );
- gridAmbientDirectionality = f;
- i++;
- }
- else if ( !strcmp( argv[ i ], "-gamma" ) ) {
- f = atof( argv[ i + 1 ] );
- lightmapGamma = f;
- Sys_Printf( "Lighting gamma set to %f\n", lightmapGamma );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-sRGBlight" ) ) {
- lightmapsRGB = qtrue;
- Sys_Printf( "Lighting is in sRGB\n" );
- }
- else if ( !strcmp( argv[ i ], "-nosRGBlight" ) ) {
- lightmapsRGB = qfalse;
- Sys_Printf( "Lighting is linear\n" );
- }
- else if ( !strcmp( argv[ i ], "-sRGBtex" ) ) {
- texturesRGB = qtrue;
- Sys_Printf( "Textures are in sRGB\n" );
- }
- else if ( !strcmp( argv[ i ], "-nosRGBtex" ) ) {
- texturesRGB = qfalse;
- Sys_Printf( "Textures are linear\n" );
- }
- else if ( !strcmp( argv[ i ], "-sRGBcolor" ) ) {
- colorsRGB = qtrue;
- Sys_Printf( "Colors are in sRGB\n" );
- }
- else if ( !strcmp( argv[ i ], "-nosRGBcolor" ) ) {
- colorsRGB = qfalse;
- Sys_Printf( "Colors are linear\n" );
- }
- else if ( !strcmp( argv[ i ], "-sRGB" ) ) {
- lightmapsRGB = qtrue;
- Sys_Printf( "Lighting is in sRGB\n" );
- texturesRGB = qtrue;
- Sys_Printf( "Textures are in sRGB\n" );
- colorsRGB = qtrue;
- Sys_Printf( "Colors are in sRGB\n" );
- }
- else if ( !strcmp( argv[ i ], "-nosRGB" ) ) {
- lightmapsRGB = qfalse;
- Sys_Printf( "Lighting is linear\n" );
- texturesRGB = qfalse;
- Sys_Printf( "Textures are linear\n" );
- colorsRGB = qfalse;
- Sys_Printf( "Colors are linear\n" );
- }
- else if ( !strcmp( argv[ i ], "-exposure" ) ) {
- f = atof( argv[ i + 1 ] );
- lightmapExposure = f;
- Sys_Printf( "Lighting exposure set to %f\n", lightmapExposure );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-compensate" ) ) {
- f = atof( argv[ i + 1 ] );
- if ( f <= 0.0f ) {
- f = 1.0f;
- }
- lightmapCompensate = f;
- Sys_Printf( "Lighting compensation set to 1/%f\n", lightmapCompensate );
- i++;
- }
- /* ydnar switches */
- else if ( !strcmp( argv[ i ], "-bounce" ) ) {
- bounce = atoi( argv[ i + 1 ] );
- if ( bounce < 0 ) {
- bounce = 0;
- }
- else if ( bounce > 0 ) {
- Sys_Printf( "Radiosity enabled with %d bounce(s)\n", bounce );
- }
- i++;
- }
- else if ( !strcmp( argv[ i ], "-supersample" ) || !strcmp( argv[ i ], "-super" ) ) {
- superSample = atoi( argv[ i + 1 ] );
- if ( superSample < 1 ) {
- superSample = 1;
- }
- else if ( superSample > 1 ) {
- Sys_Printf( "Ordered-grid supersampling enabled with %d sample(s) per lightmap texel\n", ( superSample * superSample ) );
- }
- i++;
- }
- else if ( !strcmp( argv[ i ], "-randomsamples" ) ) {
- lightRandomSamples = qtrue;
- Sys_Printf( "Random sampling enabled\n", lightRandomSamples );
- }
- else if ( !strcmp( argv[ i ], "-samples" ) ) {
- if ( *argv[i + 1] == '+' ) {
- lightSamplesInsist = qtrue;
- }
- else{
- lightSamplesInsist = qfalse;
- }
- lightSamples = atoi( argv[ i + 1 ] );
- if ( lightSamples < 1 ) {
- lightSamples = 1;
- }
- else if ( lightSamples > 1 ) {
- Sys_Printf( "Adaptive supersampling enabled with %d sample(s) per lightmap texel\n", lightSamples );
- }
- i++;
- }
- else if ( !strcmp( argv[ i ], "-samplessearchboxsize" ) ) {
- lightSamplesSearchBoxSize = atoi( argv[ i + 1 ] );
- if ( lightSamplesSearchBoxSize <= 0 ) {
- lightSamplesSearchBoxSize = 1;
- }
- if ( lightSamplesSearchBoxSize > 4 ) {
- lightSamplesSearchBoxSize = 4; /* more makes no sense */
- }
- else if ( lightSamplesSearchBoxSize != 1 ) {
- Sys_Printf( "Adaptive supersampling uses %f times the normal search box size\n", lightSamplesSearchBoxSize );
- }
- i++;
- }
- else if ( !strcmp( argv[ i ], "-filter" ) ) {
- filter = qtrue;
- Sys_Printf( "Lightmap filtering enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-dark" ) ) {
- dark = qtrue;
- Sys_Printf( "Dark lightmap seams enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-shadeangle" ) ) {
- shadeAngleDegrees = atof( argv[ i + 1 ] );
- if ( shadeAngleDegrees < 0.0f ) {
- shadeAngleDegrees = 0.0f;
- }
- else if ( shadeAngleDegrees > 0.0f ) {
- shade = qtrue;
- Sys_Printf( "Phong shading enabled with a breaking angle of %f degrees\n", shadeAngleDegrees );
- }
- i++;
- }
- else if ( !strcmp( argv[ i ], "-thresh" ) ) {
- subdivideThreshold = atof( argv[ i + 1 ] );
- if ( subdivideThreshold < 0 ) {
- subdivideThreshold = DEFAULT_SUBDIVIDE_THRESHOLD;
- }
- else{
- Sys_Printf( "Subdivision threshold set at %.3f\n", subdivideThreshold );
- }
- i++;
- }
- else if ( !strcmp( argv[ i ], "-approx" ) ) {
- approximateTolerance = atoi( argv[ i + 1 ] );
- if ( approximateTolerance < 0 ) {
- approximateTolerance = 0;
- }
- else if ( approximateTolerance > 0 ) {
- Sys_Printf( "Approximating lightmaps within a byte tolerance of %d\n", approximateTolerance );
- }
- i++;
- }
- else if ( !strcmp( argv[ i ], "-deluxe" ) || !strcmp( argv[ i ], "-deluxemap" ) ) {
- deluxemap = qtrue;
- Sys_Printf( "Generating deluxemaps for average light direction\n" );
- }
- else if ( !strcmp( argv[ i ], "-deluxemode" ) ) {
- deluxemode = atoi( argv[ i + 1 ] );
- if ( deluxemode == 0 || deluxemode > 1 || deluxemode < 0 ) {
- Sys_Printf( "Generating modelspace deluxemaps\n" );
- deluxemode = 0;
- }
- else{
- Sys_Printf( "Generating tangentspace deluxemaps\n" );
- }
- i++;
- }
- else if ( !strcmp( argv[ i ], "-nodeluxe" ) || !strcmp( argv[ i ], "-nodeluxemap" ) ) {
- deluxemap = qfalse;
- Sys_Printf( "Disabling generating of deluxemaps for average light direction\n" );
- }
- else if ( !strcmp( argv[ i ], "-external" ) ) {
- externalLightmaps = qtrue;
- Sys_Printf( "Storing all lightmaps externally\n" );
- }
- else if ( !strcmp( argv[ i ], "-lightmapsize" ) ) {
- lmCustomSize = atoi( argv[ i + 1 ] );
- /* must be a power of 2 and greater than 2 */
- if ( ( ( lmCustomSize - 1 ) & lmCustomSize ) || lmCustomSize < 2 ) {
- Sys_FPrintf( SYS_WRN, "WARNING: Lightmap size must be a power of 2, greater or equal to 2 pixels.\n" );
- lmCustomSize = game->lightmapSize;
- }
- i++;
- Sys_Printf( "Default lightmap size set to %d x %d pixels\n", lmCustomSize, lmCustomSize );
- /* enable external lightmaps */
- if ( lmCustomSize != game->lightmapSize ) {
- externalLightmaps = qtrue;
- Sys_Printf( "Storing all lightmaps externally\n" );
- }
- }
- else if ( !strcmp( argv[ i ], "-rawlightmapsizelimit" ) ) {
- lmLimitSize = atoi( argv[ i + 1 ] );
- i++;
- Sys_Printf( "Raw lightmap size limit set to %d x %d pixels\n", lmLimitSize, lmLimitSize );
- }
- else if ( !strcmp( argv[ i ], "-lightmapdir" ) ) {
- lmCustomDir = argv[i + 1];
- i++;
- Sys_Printf( "Lightmap directory set to %s\n", lmCustomDir );
- externalLightmaps = qtrue;
- Sys_Printf( "Storing all lightmaps externally\n" );
- }
- /* ydnar: add this to suppress warnings */
- else if ( !strcmp( argv[ i ], "-custinfoparms" ) ) {
- Sys_Printf( "Custom info parms enabled\n" );
- useCustomInfoParms = qtrue;
- }
- else if ( !strcmp( argv[ i ], "-wolf" ) ) {
- /* -game should already be set */
- wolfLight = qtrue;
- Sys_Printf( "Enabling Wolf lighting model (linear default)\n" );
- }
- else if ( !strcmp( argv[ i ], "-q3" ) ) {
- /* -game should already be set */
- wolfLight = qfalse;
- Sys_Printf( "Enabling Quake 3 lighting model (nonlinear default)\n" );
- }
- else if ( !strcmp( argv[ i ], "-extradist" ) ) {
- extraDist = atof( argv[ i + 1 ] );
- if ( extraDist < 0 ) {
- extraDist = 0;
- }
- i++;
- Sys_Printf( "Default extra radius set to %f units\n", extraDist );
- }
- else if ( !strcmp( argv[ i ], "-sunonly" ) ) {
- sunOnly = qtrue;
- Sys_Printf( "Only computing sunlight\n" );
- }
- else if ( !strcmp( argv[ i ], "-bounceonly" ) ) {
- bounceOnly = qtrue;
- Sys_Printf( "Storing bounced light (radiosity) only\n" );
- }
- else if ( !strcmp( argv[ i ], "-nocollapse" ) ) {
- noCollapse = qtrue;
- Sys_Printf( "Identical lightmap collapsing disabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-nolightmapsearch" ) ) {
- lightmapSearchBlockSize = 1;
- Sys_Printf( "No lightmap searching - all lightmaps will be sequential\n" );
- }
- else if ( !strcmp( argv[ i ], "-lightmapsearchpower" ) ) {
- lightmapMergeSize = ( game->lightmapSize << atoi( argv[i + 1] ) );
- ++i;
- Sys_Printf( "Restricted lightmap searching enabled - optimize for lightmap merge power %d (size %d)\n", atoi( argv[i] ), lightmapMergeSize );
- }
- else if ( !strcmp( argv[ i ], "-lightmapsearchblocksize" ) ) {
- lightmapSearchBlockSize = atoi( argv[i + 1] );
- ++i;
- Sys_Printf( "Restricted lightmap searching enabled - block size set to %d\n", lightmapSearchBlockSize );
- }
- else if ( !strcmp( argv[ i ], "-shade" ) ) {
- shade = qtrue;
- Sys_Printf( "Phong shading enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-bouncegrid" ) ) {
- bouncegrid = qtrue;
- if ( bounce > 0 ) {
- Sys_Printf( "Grid lighting with radiosity enabled\n" );
- }
- }
- else if ( !strcmp( argv[ i ], "-smooth" ) ) {
- lightSamples = EXTRA_SCALE;
- Sys_Printf( "The -smooth argument is deprecated, use \"-samples 2\" instead\n" );
- }
- else if ( !strcmp( argv[ i ], "-nofastpoint" ) ) {
- fastpoint = qfalse;
- Sys_Printf( "Automatic fast mode for point lights disabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-fast" ) ) {
- fast = qtrue;
- fastgrid = qtrue;
- fastbounce = qtrue;
- Sys_Printf( "Fast mode enabled for all area lights\n" );
- }
- else if ( !strcmp( argv[ i ], "-faster" ) ) {
- faster = qtrue;
- fast = qtrue;
- fastgrid = qtrue;
- fastbounce = qtrue;
- Sys_Printf( "Faster mode enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-fastallocate" ) ) {
- fastAllocate = qtrue;
- Sys_Printf( "Fast allocation mode enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-fastgrid" ) ) {
- fastgrid = qtrue;
- Sys_Printf( "Fast grid lighting enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-fastbounce" ) ) {
- fastbounce = qtrue;
- Sys_Printf( "Fast bounce mode enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-cheap" ) ) {
- cheap = qtrue;
- cheapgrid = qtrue;
- Sys_Printf( "Cheap mode enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-cheapgrid" ) ) {
- cheapgrid = qtrue;
- Sys_Printf( "Cheap grid mode enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-normalmap" ) ) {
- normalmap = qtrue;
- Sys_Printf( "Storing normal map instead of lightmap\n" );
- }
- else if ( !strcmp( argv[ i ], "-trisoup" ) ) {
- trisoup = qtrue;
- Sys_Printf( "Converting brush faces to triangle soup\n" );
- }
- else if ( !strcmp( argv[ i ], "-debug" ) ) {
- debug = qtrue;
- Sys_Printf( "Lightmap debugging enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-debugsurfaces" ) || !strcmp( argv[ i ], "-debugsurface" ) ) {
- debugSurfaces = qtrue;
- Sys_Printf( "Lightmap surface debugging enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-debugunused" ) ) {
- debugUnused = qtrue;
- Sys_Printf( "Unused luxel debugging enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-debugaxis" ) ) {
- debugAxis = qtrue;
- Sys_Printf( "Lightmap axis debugging enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-debugcluster" ) ) {
- debugCluster = qtrue;
- Sys_Printf( "Luxel cluster debugging enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-debugorigin" ) ) {
- debugOrigin = qtrue;
- Sys_Printf( "Luxel origin debugging enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-debugdeluxe" ) ) {
- deluxemap = qtrue;
- debugDeluxemap = qtrue;
- Sys_Printf( "Deluxemap debugging enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-export" ) ) {
- exportLightmaps = qtrue;
- Sys_Printf( "Exporting lightmaps\n" );
- }
- else if ( !strcmp( argv[ i ], "-notrace" ) ) {
- noTrace = qtrue;
- Sys_Printf( "Shadow occlusion disabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-patchshadows" ) ) {
- patchShadows = qtrue;
- Sys_Printf( "Patch shadow casting enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-extra" ) ) {
- superSample = EXTRA_SCALE; /* ydnar */
- Sys_Printf( "The -extra argument is deprecated, use \"-super 2\" instead\n" );
- }
- else if ( !strcmp( argv[ i ], "-extrawide" ) ) {
- superSample = EXTRAWIDE_SCALE; /* ydnar */
- filter = qtrue; /* ydnar */
- Sys_Printf( "The -extrawide argument is deprecated, use \"-filter [-super 2]\" instead\n" );
- }
- else if ( !strcmp( argv[ i ], "-samplesize" ) ) {
- sampleSize = atoi( argv[ i + 1 ] );
- if ( sampleSize < 1 ) {
- sampleSize = 1;
- }
- i++;
- Sys_Printf( "Default lightmap sample size set to %dx%d units\n", sampleSize, sampleSize );
- }
- else if ( !strcmp( argv[ i ], "-minsamplesize" ) ) {
- minSampleSize = atoi( argv[ i + 1 ] );
- if ( minSampleSize < 1 ) {
- minSampleSize = 1;
- }
- i++;
- Sys_Printf( "Minimum lightmap sample size set to %dx%d units\n", minSampleSize, minSampleSize );
- }
- else if ( !strcmp( argv[ i ], "-samplescale" ) ) {
- sampleScale = atoi( argv[ i + 1 ] );
- i++;
- Sys_Printf( "Lightmaps sample scale set to %d\n", sampleScale );
- }
- else if ( !strcmp( argv[ i ], "-novertex" ) ) {
- noVertexLighting = qtrue;
- Sys_Printf( "Disabling vertex lighting\n" );
- }
- else if ( !strcmp( argv[ i ], "-nogrid" ) ) {
- noGridLighting = qtrue;
- Sys_Printf( "Disabling grid lighting\n" );
- }
- else if ( !strcmp( argv[ i ], "-border" ) ) {
- lightmapBorder = qtrue;
- Sys_Printf( "Adding debug border to lightmaps\n" );
- }
- else if ( !strcmp( argv[ i ], "-nosurf" ) ) {
- noSurfaces = qtrue;
- Sys_Printf( "Not tracing against surfaces\n" );
- }
- else if ( !strcmp( argv[ i ], "-dump" ) ) {
- dump = qtrue;
- Sys_Printf( "Dumping radiosity lights into numbered prefabs\n" );
- }
- else if ( !strcmp( argv[ i ], "-lomem" ) ) {
- loMem = qtrue;
- Sys_Printf( "Enabling low-memory (potentially slower) lighting mode\n" );
- }
- else if ( !strcmp( argv[ i ], "-lightsubdiv" ) ) {
- defaultLightSubdivide = atoi( argv[ i + 1 ] );
- if ( defaultLightSubdivide < 1 ) {
- defaultLightSubdivide = 1;
- }
- i++;
- Sys_Printf( "Default light subdivision set to %d\n", defaultLightSubdivide );
- }
- else if ( !strcmp( argv[ i ], "-lightanglehl" ) ) {
- if ( ( atoi( argv[ i + 1 ] ) != 0 ) != lightAngleHL ) {
- lightAngleHL = ( atoi( argv[ i + 1 ] ) != 0 );
- if ( lightAngleHL ) {
- Sys_Printf( "Enabling half lambert light angle attenuation\n" );
- }
- else{
- Sys_Printf( "Disabling half lambert light angle attenuation\n" );
- }
- }
- i++;
- }
- else if ( !strcmp( argv[ i ], "-nostyle" ) || !strcmp( argv[ i ], "-nostyles" ) ) {
- noStyles = qtrue;
- Sys_Printf( "Disabling lightstyles\n" );
- }
- else if ( !strcmp( argv[ i ], "-style" ) || !strcmp( argv[ i ], "-styles" ) ) {
- noStyles = qfalse;
- Sys_Printf( "Enabling lightstyles\n" );
- }
- else if ( !strcmp( argv[ i ], "-cpma" ) ) {
- cpmaHack = qtrue;
- Sys_Printf( "Enabling Challenge Pro Mode Asstacular Vertex Lighting Mode (tm)\n" );
- }
- else if ( !strcmp( argv[ i ], "-floodlight" ) ) {
- floodlighty = qtrue;
- Sys_Printf( "FloodLighting enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-debugnormals" ) ) {
- debugnormals = qtrue;
- Sys_Printf( "DebugNormals enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-lowquality" ) ) {
- floodlight_lowquality = qtrue;
- Sys_Printf( "Low Quality FloodLighting enabled\n" );
- }
- /* r7: dirtmapping */
- else if ( !strcmp( argv[ i ], "-dirty" ) ) {
- dirty = qtrue;
- Sys_Printf( "Dirtmapping enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-dirtdebug" ) || !strcmp( argv[ i ], "-debugdirt" ) ) {
- dirtDebug = qtrue;
- Sys_Printf( "Dirtmap debugging enabled\n" );
- }
- else if ( !strcmp( argv[ i ], "-dirtmode" ) ) {
- dirtMode = atoi( argv[ i + 1 ] );
- if ( dirtMode != 0 && dirtMode != 1 ) {
- dirtMode = 0;
- }
- if ( dirtMode == 1 ) {
- Sys_Printf( "Enabling randomized dirtmapping\n" );
- }
- else{
- Sys_Printf( "Enabling ordered dir mapping\n" );
- }
- i++;
- }
- else if ( !strcmp( argv[ i ], "-dirtdepth" ) ) {
- dirtDepth = atof( argv[ i + 1 ] );
- if ( dirtDepth <= 0.0f ) {
- dirtDepth = 128.0f;
- }
- Sys_Printf( "Dirtmapping depth set to %.1f\n", dirtDepth );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-dirtscale" ) ) {
- dirtScale = atof( argv[ i + 1 ] );
- if ( dirtScale <= 0.0f ) {
- dirtScale = 1.0f;
- }
- Sys_Printf( "Dirtmapping scale set to %.1f\n", dirtScale );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-dirtgain" ) ) {
- dirtGain = atof( argv[ i + 1 ] );
- if ( dirtGain <= 0.0f ) {
- dirtGain = 1.0f;
- }
- Sys_Printf( "Dirtmapping gain set to %.1f\n", dirtGain );
- i++;
- }
- else if ( !strcmp( argv[ i ], "-trianglecheck" ) ) {
- lightmapTriangleCheck = qtrue;
- }
- else if ( !strcmp( argv[ i ], "-extravisnudge" ) ) {
- lightmapExtraVisClusterNudge = qtrue;
- }
- else if ( !strcmp( argv[ i ], "-fill" ) ) {
- lightmapFill = qtrue;
- Sys_Printf( "Filling lightmap colors from surrounding pixels to improve JPEG compression\n" );
- }
- else if ( !strcmp( argv[ i ], "-bspfile" ) )
- {
- strcpy( BSPFilePath, argv[i + 1] );
- i++;
- Sys_Printf( "Use %s as bsp file\n", BSPFilePath );
- }
- else if ( !strcmp( argv[ i ], "-srffile" ) )
- {
- strcpy( surfaceFilePath, argv[i + 1] );
- i++;
- Sys_Printf( "Use %s as surface file\n", surfaceFilePath );
- }
- /* unhandled args */
- else
- {
- Sys_FPrintf( SYS_WRN, "WARNING: Unknown argument \"%s\"\n", argv[ i ] );
- }
- }
- /* fix up falloff tolerance for sRGB */
- if ( lightmapsRGB ) {
- falloffTolerance = Image_LinearFloatFromsRGBFloat( falloffTolerance * ( 1.0 / 255.0 ) ) * 255.0;
- }
- /* fix up samples count */
- if ( lightRandomSamples ) {
- if ( !lightSamplesInsist ) {
- /* approximately match -samples in quality */
- switch ( lightSamples )
- {
- /* somewhat okay */
- case 1:
- case 2:
- lightSamples = 16;
- Sys_Printf( "Adaptive supersampling preset enabled with %d random sample(s) per lightmap texel\n", lightSamples );
- break;
- /* good */
- case 3:
- lightSamples = 64;
- Sys_Printf( "Adaptive supersampling preset enabled with %d random sample(s) per lightmap texel\n", lightSamples );
- break;
- /* perfect */
- case 4:
- lightSamples = 256;
- Sys_Printf( "Adaptive supersampling preset enabled with %d random sample(s) per lightmap texel\n", lightSamples );
- break;
- default: break;
- }
- }
- }
- /* fix up lightmap search power */
- if ( lightmapMergeSize ) {
- lightmapSearchBlockSize = ( lightmapMergeSize / lmCustomSize ) * ( lightmapMergeSize / lmCustomSize );
- if ( lightmapSearchBlockSize < 1 ) {
- lightmapSearchBlockSize = 1;
- }
- Sys_Printf( "Restricted lightmap searching enabled - block size adjusted to %d\n", lightmapSearchBlockSize );
- }
- strcpy( source, ExpandArg( argv[ i ] ) );
- StripExtension( source );
- DefaultExtension( source, ".map" );
- if (!BSPFilePath[0]) {
- strcpy( BSPFilePath, ExpandArg( argv[ i ] ) );
- StripExtension( BSPFilePath );
- DefaultExtension( BSPFilePath, ".bsp" );
- }
- if (!surfaceFilePath[0]) {
- strcpy( surfaceFilePath, ExpandArg( argv[ i ] ) );
- StripExtension( surfaceFilePath );
- DefaultExtension( surfaceFilePath, ".srf" );
- }
- /* ydnar: set default sample size */
- SetDefaultSampleSize( sampleSize );
- /* ydnar: handle shaders */
- BeginMapShaderFile( BSPFilePath );
- LoadShaderInfo();
- /* note loading */
- Sys_Printf( "Loading %s\n", source );
- /* ydnar: load surface file */
- LoadSurfaceExtraFile( surfaceFilePath );
- /* load bsp file */
- LoadBSPFile( BSPFilePath );
- /* parse bsp entities */
- ParseEntities();
- /* inject command line parameters */
- InjectCommandLine( argv, 0, argc - 1 );
- /* load map file */
- value = ValueForKey( &entities[ 0 ], "_keepLights" );
- if ( value[ 0 ] != '1' ) {
- LoadMapFile( source, qtrue, qfalse );
- }
- /* set the entity/model origins and init yDrawVerts */
- SetEntityOrigins();
- /* ydnar: set up optimization */
- SetupBrushes();
- SetupDirt();
- SetupFloodLight();
- SetupSurfaceLightmaps();
- /* initialize the surface facet tracing */
- SetupTraceNodes();
- /* light the world */
- LightWorld( BSPFilePath, fastAllocate );
- /* write out the bsp */
- UnparseEntities();
- Sys_Printf( "Writing %s\n", BSPFilePath );
- WriteBSPFile( BSPFilePath );
- /* ydnar: export lightmaps */
- if ( exportLightmaps && !externalLightmaps ) {
- ExportLightmaps();
- }
- /* return to sender */
- return 0;
- }