]> de.git.xonotic.org Git - xonotic/netradiant.git/blobdiff - tools/quake3/q3map2/light.c
support -sRGBcolor for all _color keys
[xonotic/netradiant.git] / tools / quake3 / q3map2 / light.c
index 218134f96fad6bb16d158cf22b73bb0a4520e6d5..74ed5a46658848c04a941bd5e7cb455255310453 100644 (file)
@@ -148,7 +148,6 @@ static void CreateSkyLights( vec3_t color, float value, int iterations, float fi
        int                     angleSteps, elevationSteps;
        float           angle, elevation;
        float           angleStep, elevationStep;
-       float           step, start;
        sun_t           sun;
        
        
@@ -156,10 +155,6 @@ static void CreateSkyLights( vec3_t color, float value, int iterations, float fi
        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;
@@ -393,6 +388,12 @@ void CreateEntityLights( void )
                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 );
@@ -401,7 +402,10 @@ void CreateEntityLights( void )
                else
                        light->color[ 0 ] = light->color[ 1 ] = light->color[ 2 ] = 1.0f;
 
-               intensity = intensity * pointScale;
+               light->extraDist = FloatForKey( e, "_extradist" );
+               if(light->extraDist == 0.0f)
+                       light->extraDist = extraDist;
+               
                light->photons = intensity;
 
                light->type = EMIT_POINT;
@@ -425,6 +429,7 @@ void CreateEntityLights( void )
                        {
                                Sys_Printf( "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
                        {
@@ -462,7 +467,7 @@ void CreateEntityLights( void )
                                        /* make a sun */
                                        VectorScale( light->normal, -1.0f, sun.direction );
                                        VectorCopy( light->color, sun.color );
-                                       sun.photons = (intensity / pointScale);
+                                       sun.photons = intensity;
                                        sun.deviance = deviance / 180.0f * Q_PI;
                                        sun.numSamples = numSamples;
                                        sun.style = noStyles ? LS_NORMAL : light->style;
@@ -478,8 +483,14 @@ void CreateEntityLights( void )
                                        /* 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++ )
@@ -745,14 +756,21 @@ int LightContributionToSample( trace_t *trace )
        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 )
@@ -792,7 +810,7 @@ int LightContributionToSample( trace_t *trace )
                }
                
                /* nudge the point so that it is clearly forward of the light */
-               /* so that surfaces meeting a light emiter don't get black edges */
+               /* 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
@@ -811,8 +829,13 @@ int LightContributionToSample( trace_t *trace )
                        angle = DotProduct( trace->normal, trace->direction );
                        
                        /* twosided lighting */
-                       if( trace->twoSided )
-                               angle = fabs( angle );
+                       if( trace->twoSided && angle < 0 )
+                       {
+                               angle = -angle;
+
+                               /* no deluxemap contribution from "other side" light */
+                               doAddDeluxe = qfalse;
+                       }
                        
                        /* attenuate */
                        angle *= -DotProduct( light->normal, trace->direction );
@@ -820,8 +843,27 @@ int LightContributionToSample( trace_t *trace )
                                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
                {
@@ -841,13 +883,26 @@ int LightContributionToSample( trace_t *trace )
                                        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;
                }
        }
        
@@ -859,13 +914,45 @@ int LightContributionToSample( trace_t *trace )
                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 */
-               angle = (light->flags & LIGHT_ATTEN_ANGLE) ? DotProduct( trace->normal, trace->direction ) : 1.0f;
+               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;
@@ -873,19 +960,41 @@ int LightContributionToSample( trace_t *trace )
                                angle = 1.0f;
                }
                
-               /* twosided lighting */
-               if( trace->twoSided )
-                       angle = fabs( angle );
-               
                /* 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;
+               {
+                       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 )
@@ -908,7 +1017,16 @@ int LightContributionToSample( trace_t *trace )
                        
                        /* 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;
+                       }
                }
        }
        
@@ -918,23 +1036,70 @@ int LightContributionToSample( trace_t *trace )
                /* get origin and direction */
                VectorAdd( trace->origin, light->origin, trace->end );
                dist = SetupTrace( trace );
-               
+
                /* angle attenuation */
-               angle = (light->flags & LIGHT_ATTEN_ANGLE)
-                       ? DotProduct( trace->normal, trace->direction )
-                       : 1.0f;
-               
-               /* twosided lighting */
-               if( trace->twoSided )
-                       angle = fabs( angle );
+               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;
@@ -945,9 +1110,12 @@ int LightContributionToSample( trace_t *trace )
                {
                        /* trace */
                        TraceLine( trace );
+                       trace->forceSubsampling *= add;
                        if( !(trace->compileFlags & C_SKY) || trace->opaque )
                        {
                                VectorClear( trace->color );
+                               VectorClear( trace->directionContribution );
+
                                return -1;
                        }
                }
@@ -955,6 +1123,8 @@ int LightContributionToSample( trace_t *trace )
                /* return to sender */
                return 1;
        }
+       else
+               Error("Light of undefined type!");
 
        /* VorteX: set noShadow color */
        VectorScale(light->color, add, trace->colorNoShadow);
@@ -962,6 +1132,34 @@ int LightContributionToSample( trace_t *trace )
        /* 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;
@@ -969,9 +1167,12 @@ int LightContributionToSample( trace_t *trace )
        
        /* raytrace */
        TraceLine( trace );
+       trace->forceSubsampling *= add;
        if( trace->passSolid || trace->opaque )
        {
                VectorClear( trace->color );
+               VectorClear( trace->directionContribution );
+
                return -1;
        }
        
@@ -1115,9 +1316,10 @@ int LightContributionToPoint( trace_t *trace )
        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);
        }
@@ -1161,6 +1363,7 @@ int LightContributionToPoint( trace_t *trace )
        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;
                
@@ -1266,6 +1469,7 @@ typedef struct
 {
        vec3_t          dir;
        vec3_t          color;
+       vec3_t          ambient;
        int                     style;
 }
 contribution_t;
@@ -1324,7 +1528,7 @@ void TraceGrid( int num )
                }
                
                /* can't find a valid point at all */
-               if( step > 0.5 )
+               if( step > 1.0 )
                        return;
        }
        
@@ -1359,6 +1563,7 @@ void TraceGrid( int num )
                /* 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++;
                
@@ -1378,50 +1583,55 @@ void TraceGrid( int num )
        
        /////// Floodlighting for point //////////////////
        //do our floodlight ambient occlusion loop, and add a single contribution based on the brightest dir
-       if (floodlighty)
+       if( floodlighty )
        {
-               int q;
-               float addSize,f;
-               vec3_t col,dir;
-               col[0]=col[1]=col[2]=floodlightIntensity;
-               dir[0]=dir[1]=0;
-               dir[2]=1;
+               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 (q=0;q<2;q++)
+               for( k = 0; k < 2; k++ )
                {
-                       if (q==0) //upper hemisphere
+                       if( k == 0 ) // upper hemisphere
                        {
-                               trace.normal[0]=0;
-                               trace.normal[1]=0;
-                               trace.normal[2]=1;
+                               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;
+                               trace.normal[0] = 0;
+                               trace.normal[1] = 0;
+                               trace.normal[2] = -1;
                        }
 
-                       f = FloodLightForSample(&trace, floodlightDistance, floodlight_lowquality);
+                       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 ].color[0]=col[0]*f;
-                       contributions[ numCon ].color[1]=col[1]*f;
-                       contributions[ numCon ].color[2]=col[2]*f;
+                       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 ].dir[0] = dir[0];
+                       contributions[ numCon ].dir[1] = dir[1];
+                       contributions[ numCon ].dir[2] = dir[2];
 
                        contributions[ numCon ].style = 0;
-                       numCon++;
+
                        /* push average direction around */
-                       addSize = VectorLength( col );
+                       addSize = VectorLength( contributions[ numCon ].color );
                        VectorMA( gp->dir, addSize, dir, gp->dir );
+
+                       numCon++;
                }
        }
        /////////////////////
@@ -1477,6 +1687,8 @@ void TraceGrid( int num )
                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
@@ -1627,7 +1839,7 @@ void LightWorld( void )
        vec3_t          color;
        float           f;
        int                     b, bt;
-       qboolean        minVertex, minGrid, ps;
+       qboolean        minVertex, minGrid;
        const char      *value;
        
 
@@ -1644,6 +1856,12 @@ void LightWorld( void )
        
        /* find the optional minimum lighting values */
        GetVectorForKey( &entities[ 0 ], "_color", color );
+       if (colorsRGB)
+       {
+               color[0] = Image_LinearFloatFromsRGBFloat(color[0]);
+               color[1] = Image_LinearFloatFromsRGBFloat(color[1]);
+               color[2] = Image_LinearFloatFromsRGBFloat(color[2]);
+       }
        if( VectorLength( color ) == 0.0f )
                VectorSet( color, 1.0, 1.0, 1.0 );
        
@@ -1701,10 +1919,9 @@ void LightWorld( void )
                SetupEnvelopes( qtrue, fastgrid );
                
                Sys_Printf( "--- TraceGrid ---\n" );
-               ps = patchShadows;
-               patchShadows = qfalse; /* patch shadows + lightgrid sampling tends to sample between patch and caulk, so let's turn that off for now FIXME */
+               inGrid = qtrue;
                RunThreadsOnIndividual( numRawGridPoints, qtrue, TraceGrid );
-               patchShadows = ps;
+               inGrid = qfalse;
                Sys_Printf( "%d x %d x %d = %d grid\n",
                        gridBounds[ 0 ], gridBounds[ 1 ], gridBounds[ 2 ], numBSPGridPoints );
                
@@ -1727,10 +1944,6 @@ void LightWorld( void )
        if( dirty )
        {
                Sys_Printf( "--- DirtyRawLightmap ---\n" );
-
-
-
-
                RunThreadsOnIndividual( numRawLightmaps, qtrue, DirtyRawLightmap );
        }
        
@@ -1800,10 +2013,9 @@ void LightWorld( void )
                        gridBoundsCulled = 0;
                        
                        Sys_Printf( "--- BounceGrid ---\n" );
-                       ps = patchShadows;
-                       patchShadows = qfalse; /* patch shadows + lightgrid sampling tends to sample between patch and caulk, so let's turn that off for now FIXME */
+                       inGrid = qtrue;
                        RunThreadsOnIndividual( numRawGridPoints, qtrue, TraceGrid );
-                       patchShadows = ps;
+                       inGrid = qfalse;
                        Sys_FPrintf( SYS_VRB, "%9d grid points envelope culled\n", gridEnvelopeCulled );
                        Sys_FPrintf( SYS_VRB, "%9d grid points bounds culled\n", gridBoundsCulled );
                }
@@ -1851,6 +2063,7 @@ int LightMain( int argc, char **argv )
        char            mapSource[ 1024 ];
        const char      *value;
        int lightmapMergeSize = 0;
+       qboolean        lightSamplesInsist = qfalse;
        
        
        /* note it */
@@ -1870,6 +2083,24 @@ int LightMain( int argc, char **argv )
        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 );
 
@@ -1882,18 +2113,16 @@ int LightMain( int argc, char **argv )
        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" );
@@ -1922,7 +2151,25 @@ int LightMain( int argc, char **argv )
                {
                        f = atof( argv[ i + 1 ] );
                        pointScale *= f;
-                       Sys_Printf( "Point (entity) light scaled by %f to %f\n", f, pointScale );
+                       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++;
                }
                
@@ -1954,6 +2201,7 @@ int LightMain( int argc, char **argv )
                {
                        f = atof( argv[ i + 1 ] );
                        pointScale *= f;
+                       spotScale *= f;
                        areaScale *= f;
                        skyScale *= f;
                        bounceScale *= f;
@@ -1980,20 +2228,20 @@ int LightMain( int argc, char **argv )
                else if( !strcmp( argv[ i ], "-griddirectionality" ) )
                {
                        f = atof( argv[ i + 1 ] );
-                       if(f < 0) f = 0;
-                       if(f > gridAmbientDirectionality) f = gridAmbientDirectionality;
+                       if(f > 1) f = 1;
+                       if(f < gridAmbientDirectionality) gridAmbientDirectionality = f;
                        Sys_Printf( "Grid directionality is %f\n", f );
-                       gridDirectionality *= f;
+                       gridDirectionality = f;
                        i++;
                }
 
                else if( !strcmp( argv[ i ], "-gridambientdirectionality" ) )
                {
                        f = atof( argv[ i + 1 ] );
-                       if(f > gridDirectionality) f = gridDirectionality;
-                       if(f > 1) f = 1;
+                       if(f < -1) f = -1;
+                       if(f > gridDirectionality) gridDirectionality = f;
                        Sys_Printf( "Grid ambient directionality is %f\n", f );
-                       gridAmbientDirectionality *= f;
+                       gridAmbientDirectionality = f;
                        i++;
                }
                
@@ -2005,6 +2253,42 @@ int LightMain( int argc, char **argv )
                        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 ], "-exposure" ) )
                {
                        f = atof( argv[ i + 1 ] );
@@ -2044,8 +2328,18 @@ int LightMain( int argc, char **argv )
                        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;
@@ -2054,6 +2348,18 @@ int LightMain( int argc, char **argv )
                        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;
@@ -2184,6 +2490,15 @@ int LightMain( int argc, char **argv )
                        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" ) )
                {
@@ -2418,6 +2733,17 @@ int LightMain( int argc, char **argv )
                        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;
@@ -2428,11 +2754,6 @@ int LightMain( int argc, char **argv )
                        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;
@@ -2508,6 +2829,11 @@ int LightMain( int argc, char **argv )
                {
                        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
                {
@@ -2516,6 +2842,38 @@ int LightMain( int argc, char **argv )
 
        }
 
+       /* 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)
        {
@@ -2559,7 +2917,7 @@ int LightMain( int argc, char **argv )
        /* load map file */
        value = ValueForKey( &entities[ 0 ], "_keepLights" );
        if( value[ 0 ] != '1' )
-               LoadMapFile( mapSource, qtrue );
+               LoadMapFile( mapSource, qtrue, qfalse );
        
        /* set the entity/model origins and init yDrawVerts */
        SetEntityOrigins();