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materialsystem/stdshaders/Water_ps14.vsh

@@ -0,0 +1,95 @@
+vs.1.1
+
+# DYNAMIC: "DOWATERFOG"				"0..1"
+
+;------------------------------------------------------------------------------
+; Constants specified by the app
+;    c0      = (0, 1, 2, 0.5)
+;	 c1		 = (1/2.2, 0, 0, 0)
+;    c2      = camera position *in world space*
+;    c4-c7   = modelViewProj matrix	(transpose)
+;    c8-c11  = ViewProj matrix (transpose)
+;    c12-c15 = model->view matrix (transpose)
+;	 c16	 = [fogStart, fogEnd, fogRange, undefined]
+;
+; $SHADER_SPECIFIC_CONST_0..$SHADER_SPECIFIC_CONST_3 - special proj matrix
+;
+; Vertex components (as specified in the vertex DECL)
+;    $vPos    = Position
+;	 $vTexCoord0.xy = TexCoord0
+;------------------------------------------------------------------------------
+
+#include "macros.vsh"
+
+; Vertex components
+;    $vPos		= Position
+;	 $vNormal		= normal
+;	 $vTexCoord0.xy	= TexCoord0
+;	 $vTangentS		= S axis of Texture space
+;	 $vTangentT	= T axis of Texture space
+
+
+;------------------------------------------------------------------------------
+; Transform the position from world to view space
+;------------------------------------------------------------------------------
+
+
+alloc $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
+
+alloc $worldPos
+
+; Transform position from object to world space
+dp4 $worldPos.x, $vPos, $cModel0
+dp4 $worldPos.y, $vPos, $cModel1
+dp4 $worldPos.z, $vPos, $cModel2
+
+&CalcFog( $worldPos, $projPos );
+
+alloc $worldEyeVect
+
+; Get the eye vector in world space
+add $worldEyeVect.xyz, -$worldPos, $cEyePos
+
+alloc $tangentEyeVect
+
+; transform the eye vector to tangent space
+dp3 $tangentEyeVect.x, $worldEyeVect, $vTangentS
+dp3 $tangentEyeVect.y, $worldEyeVect, $vTangentT
+dp3 $tangentEyeVect.z, $worldEyeVect, $vNormal
+mov $tangentEyeVect.w, $cZero
+
+mov oT5, $tangentEyeVect
+
+; base coordinates
+dp4 oT0.x, $vTexCoord0, $SHADER_SPECIFIC_CONST_1
+dp4 oT0.y, $vTexCoord0, $SHADER_SPECIFIC_CONST_2
+
+; reflection
+alloc $projPosReflect
+
+mov $projPosReflect, $projPos
+add $projPosReflect.xy, $projPosReflect, $projPosReflect.w
+mul $projPosReflect.xy, $projPosReflect, $cHalf
+mov oT1, $projPosReflect
+
+; refraction
+mov $projPos.y, -$projPos.y
+add $projPos.xy, $projPos, $projPos.w
+mul $projPos.xy, $projPos, $cHalf
+mov oT2, $projPos
+
+; reflectionscale, refractionscale
+mov oT4, $SHADER_SPECIFIC_CONST_4
+
+free $worldEyeVect
+free $tangentEyeVect
+free $projPosReflect
+free $worldPos
+free $projPos