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materialsystem/stdshaders/Refract_model_vs11.vsh

@@ -0,0 +1,105 @@
+vs.1.1
+
+# DYNAMIC: "DOWATERFOG"				"0..1"
+# DYNAMIC: "SKINNING"				"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]
+;
+; 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 $worldPos
+alloc $worldNormal
+alloc $worldTangentS
+alloc $worldTangentT
+
+&SkinPositionNormalAndTangentSpace( $worldPos, $worldNormal, 
+					$worldTangentS, $worldTangentT );
+
+alloc $projPos
+
+; Transform position from world to projection space
+dp4 $projPos.x, $worldPos, $cViewProj0
+dp4 $projPos.y, $worldPos, $cViewProj1
+dp4 $projPos.z, $worldPos, $cViewProj2
+dp4 $projPos.w, $worldPos, $cViewProj3
+
+&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 oT3.x, $worldEyeVect, $worldTangentS
+dp3 oT3.y, $worldEyeVect, $worldTangentT
+dp3 oT3.z, $worldEyeVect, $worldNormal
+
+alloc $bumpTexCoord
+
+dp4 $bumpTexCoord.x, $vTexCoord0, $SHADER_SPECIFIC_CONST_1
+dp4 $bumpTexCoord.y, $vTexCoord0, $SHADER_SPECIFIC_CONST_2
+ 
+; dudv map
+mov oT0.xy, $bumpTexCoord
+
+; refract tint + alpha channel
+mov oT2.xy, $bumpTexCoord
+mov oT3.xy, $bumpTexCoord
+
+free $bumpTexCoord
+
+mov oPos, $projPos
+
+; special case perspective correct texture projection so that the texture fits exactly on the screen
+
+; flip Y by multiplying by -1
+mul $projPos.y, $projPos.y, $SHADER_SPECIFIC_CONST_4.w
+
+; transform from [-w,w] to [0,2*w]
+; The reason this is w is because we are in perspective space/homogenous clip space.
+add $projPos.xy, $projPos.xy, $projPos.w
+
+; transform from [0,2*w] to [0,w]
+; We'll end up dividing by w in the pixel shader to get to [0,1]
+mul $projPos.xy, $projPos.xy, $cHalf
+
+mov oT1.xy, $projPos.xy
+
+; emit w to both z and w in case the driver screws up and divides by z
+mov oT1.z, $projPos.w
+mov oT1.w, $projPos.w
+
+free $projPos
+free $worldPos
+free $worldEyeVect
+free $tangentEyeVect
+free $w
+free $worldNormal
+free $worldTangentS
+free $worldTangentT