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fix deluxemap when lit from the wrong side as good as possible (by ignoring the deluxemap contribution). now the invariant "deluxemap vector points away from the surface" should hold.

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cull none + deluxemapping still is broken by design, but less broken now.


git-svn-id: svn://svn.icculus.org/netradiant/trunk@111 61c419a2-8eb2-4b30-bcec-8cead039b335
This commit is contained in:
rpolzer 2008-09-30 13:29:31 +00:00
parent 42d241347b
commit ef9e16cdb9
1 changed files with 8 additions and 5 deletions
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13
tools/quake3/q3map2/light_ydnar.c
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@ -2101,11 +2101,14 @@ void IlluminateRawLightmap( int rawLightmapNum )
/* add to light direction map (fixme: use luxel normal as starting point for deluxel?) */ /* add to light direction map (fixme: use luxel normal as starting point for deluxel?) */
if( deluxemap ) if( deluxemap )
{ {
/* color to grayscale (photoshop rgb weighting) */ if(DotProduct(normal, trace.direction) > 0) // do not take light from the back side
brightness = trace.color[ 0 ] * 0.3f + trace.color[ 1 ] * 0.59f + trace.color[ 2 ] * 0.11f; {
brightness *= (1.0 / 255.0); /* color to grayscale (photoshop rgb weighting) */
VectorScale( trace.direction, brightness, trace.direction ); brightness = trace.color[ 0 ] * 0.3f + trace.color[ 1 ] * 0.59f + trace.color[ 2 ] * 0.11f;
VectorAdd( deluxel, trace.direction, deluxel ); brightness *= (1.0 / 255.0);
VectorScale( trace.direction, brightness, trace.direction );
VectorAdd( deluxel, trace.direction, deluxel );
}
} }
} }
} }