1HEADmaster

1 files changed, 117 insertions, 0 deletions

diff --git a/materialsystem/stdshaders/Cable.vsh b/materialsystem/stdshaders/Cable.vsh
new file mode 100644
index 0000000..857a2e3
--- /dev/null
+++ b/materialsystem/stdshaders/Cable.vsh
@@ -0,0 +1,117 @@
+vs.1.1
+
+#include "macros.vsh"
+
+# DYNAMIC: "DOWATERFOG"				"0..1"
+
+;------------------------------------------------------------------------------
+; The cable equation is:
+; [L dot N] * C * T
+;
+; where:
+; C = directional light color
+; T = baseTexture
+; N = particle normal (stored in the normal map)
+; L = directional light direction
+;
+;	$SHADER_SPECIFIC_CONST_0		= Directional light direction
+;------------------------------------------------------------------------------
+
+
+;------------------------------------------------------------------------------
+; Transform position from object to projection space
+;------------------------------------------------------------------------------
+
+&AllocateRegister( \$projPos );
+
+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 );
+
+;------------------------------------------------------------------------------
+; Setup the tangent space
+;------------------------------------------------------------------------------
+
+&AllocateRegister( \$tmp1 );
+&AllocateRegister( \$tmp2 );
+&AllocateRegister( \$tmp3 );
+&AllocateRegister( \$r );
+
+; Get S crossed with T (call it R)
+mov		$tmp1, $vTangentS
+mov		$tmp2, $vTangentT
+
+mul		$tmp3, $vTangentS.yzxw,  $tmp2.zxyw
+mad		$r, -$vTangentS.zxyw, $tmp2.yzxw, $tmp3
+
+&FreeRegister( \$tmp2 );
+&FreeRegister( \$tmp3 );
+
+&AllocateRegister( \$s );
+
+; Normalize S (into $s)
+dp3		$s.w, $vTangentS, $vTangentS
+rsq		$s.w, $s.w
+mul		$s.xyz, $vTangentS, $s.w
+
+; Normalize R (into $r)
+dp3		$r.w, $r, $r
+rsq		$r.w, $r.w
+mul		$r.xyz, $r, $r.w
+
+&AllocateRegister( \$t );
+
+; Regenerate T (into $t)
+mul		$t, $r.yzxw,  $tmp1.zxyw
+mad		$t, -$r.zxyw, $tmp1.yzxw, $t
+
+&FreeRegister( \$tmp1 );
+
+;------------------------------------------------------------------------------
+; Transform the light direction (into oD1)
+;------------------------------------------------------------------------------
+
+&AllocateRegister( \$lightDirection );
+
+dp3		$lightDirection.x, $s, $SHADER_SPECIFIC_CONST_0
+dp3		$lightDirection.y, $t, $SHADER_SPECIFIC_CONST_0
+dp3		$lightDirection.z, $r, $SHADER_SPECIFIC_CONST_0
+
+&FreeRegister( \$r );
+&FreeRegister( \$s );
+&FreeRegister( \$t );
+
+; Scale into 0-1 range (we're assuming light direction was normalized prior to here)
+add		oT2, $lightDirection, $cHalf	; + 0.5 
+&FreeRegister( \$lightDirection );
+
+;------------------------------------------------------------------------------
+; Copy texcoords for the normal map and base texture
+;------------------------------------------------------------------------------
+
+mov		oT0, $vTexCoord0
+mov		oT1, $vTexCoord1
+
+; Pass the dirlight color through
+mov		oD0.xyzw, $vColor
+
+