+++ /dev/null
-/* -------------------------------------------------------------------------------
-
-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;
- float step, start;
- sun_t sun;
-
-
- /* dummy check */
- if( value <= 0.0f || iterations < 2 )
- return;
-
- /* calculate some stuff */
- step = 2.0f / (iterations - 1);
- start = -1.0f;
-
- /* 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 (!(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;
-
- intensity = intensity * pointScale;
- 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_Printf( "WARNING: light at (%i %i %i) has missing target\n",
- (int) light->origin[ 0 ], (int) light->origin[ 1 ], (int) light->origin[ 2 ] );
- }
- 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 / pointScale);
- 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;
- }
- }
- }
-
- /* 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( void )
-{
- 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 );
-
- /* 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();
- UnparseEntities();
- Sys_Printf( "Writing %s\n", source );
- WriteBSPFile( source );
-
- /* 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" );
- break;
- }
-
- /* 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++;
- }
-}
-
-
-
-/*
-LightMain()
-main routine for light processing
-*/
-
-int LightMain( int argc, char **argv )
-{
- int i;
- float f;
- char mapSource[ 1024 ];
- const char *value;
- int lightmapMergeSize = 0;
- qboolean lightSamplesInsist = 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 );
-
- 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" );
-
- keepLights = game->keepLights;
- if (keepLights == qtrue)
- Sys_Printf( " keep lights: enabled\n" );
- else
- Sys_Printf( " keep lights: disabled\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;
- Sys_Printf( "Point (entity) light scaled by %f to %f\n", f, pointScale );
- 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;
- 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 ], "-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_Printf( "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 ], "-fast" ) )
- {
- fast = qtrue;
- fastgrid = qtrue;
- fastbounce = qtrue;
- Sys_Printf( "Fast mode enabled\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 ], "-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 ], "-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" );
- }
- }
- 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 ], "-keeplights" ))
- {
- keepLights = qtrue;
- Sys_Printf( "Leaving light entities on map after compile\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" );
- }
- /* unhandled args */
- else
- {
- Sys_Printf( "WARNING: Unknown argument \"%s\"\n", argv[ i ] );
- }
-
- }
-
- /* 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 );
- }
-
- /* clean up map name */
- strcpy( source, ExpandArg( argv[ i ] ) );
- StripExtension( source );
- DefaultExtension( source, ".bsp" );
- strcpy( mapSource, ExpandArg( argv[ i ] ) );
- StripExtension( mapSource );
- DefaultExtension( mapSource, ".map" );
-
- /* ydnar: set default sample size */
- SetDefaultSampleSize( sampleSize );
-
- /* ydnar: handle shaders */
- BeginMapShaderFile( source );
- LoadShaderInfo();
-
- /* note loading */
- Sys_Printf( "Loading %s\n", source );
-
- /* ydnar: load surface file */
- LoadSurfaceExtraFile( source );
-
- /* load bsp file */
- LoadBSPFile( source );
-
- /* 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( mapSource, 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();
-
- /* ydnar: store off lightmaps */
- StoreSurfaceLightmaps();
-
- /* write out the bsp */
- UnparseEntities();
- Sys_Printf( "Writing %s\n", source );
- WriteBSPFile( source );
-
- /* ydnar: export lightmaps */
- if( exportLightmaps && !externalLightmaps )
- ExportLightmaps();
-
- /* return to sender */
- return 0;
-}
-
projects / voretournament / voretournament.git / blobdiff