1

materialsystem/stdshaders/LightmappedGeneric_Decal.vsh

@@ -0,0 +1,56 @@
+vs.1.1
+
+# DYNAMIC: "DOWATERFOG"				"0..1"
+
+#include "macros.vsh"
+
+;------------------------------------------------------------------------------
+; Vertex blending
+;------------------------------------------------------------------------------
+
+&AllocateRegister( \$projPos );
+
+; Transform position from object to projection space
+dp4 $projPos.x, $vPos, $cModelViewProj0
+dp4 $projPos.y, $vPos, $cModelViewProj1
+dp4 $projPos.z, $vPos, $cModelViewProj2
+dp4 $projPos.w, $vPos, $cModelViewProj3
+
+mov oPos, $projPos
+
+;------------------------------------------------------------------------------
+; Fog
+;------------------------------------------------------------------------------
+
+alloc $worldPos
+if( $DOWATERFOG == 1 )
+{
+	; Get the worldpos z component only since that's all we need for height fog
+	dp4 $worldPos.z, $vPos, $cModel2
+}
+&CalcFog( $worldPos, $projPos );
+free $worldPos
+
+&FreeRegister( \$projPos );
+
+;------------------------------------------------------------------------------
+; Texture coordinates
+;------------------------------------------------------------------------------
+
+; Compute the texture coordinates given the offset between
+; each bumped lightmap
+&AllocateRegister( \$offset );
+mov $offset.x, $vTexCoord2.x
+mov $offset.y, $cZero
+dp4 oT0.x, $vTexCoord0, $SHADER_SPECIFIC_CONST_0
+dp4 oT0.y, $vTexCoord0, $SHADER_SPECIFIC_CONST_1
+add oT1.xy, $offset, $vTexCoord1
+mad oT2.xy, $offset, $cTwo, $vTexCoord1
+; make a 3
+alloc $three
+add $three, $cOne, $cTwo
+mad oT3.xy, $offset, $three, $vTexCoord1
+free $three
+mov oD0, $vColor
+
+&FreeRegister( \$offset );