Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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54 lines
1.2 KiB

vs.1.1
# DYNAMIC: "DOWATERFOG" "0..1"
#include "macros.vsh"
local( $worldPos, $worldNormal, $projPos, $reflectionVector );
alloc $projPos
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
alloc $worldNormal
dp4 $worldPos.x, $vPos, $cModel0
dp4 $worldPos.y, $vPos, $cModel1
dp4 $worldPos.z, $vPos, $cModel2
dp3 $worldNormal.x, $vNormal, $cModel0
dp3 $worldNormal.y, $vNormal, $cModel1
dp3 $worldNormal.z, $vNormal, $cModel2
&CalcFog( $worldPos, $projPos );
free $projPos
;------------------------------------------------------------------------------
; Texture coordinates
;------------------------------------------------------------------------------
; base texcoords
alloc $texcoord
mul $texcoord.xyz, $worldPos, $SHADER_SPECIFIC_CONST_0
mov oT0.xy, $texcoord.zy;
mov oT1.xy, $texcoord.xz;
mov oT2.xy, $texcoord.xy;
free $texcoord
; lightmap texcoords
mov oT3, $vTexCoord1
mul oD0.rgb, $worldNormal, $worldNormal
; Now the basetexture/basetexture2 blend uses vertex color, so send it into the psh.
mov oD0.a, $vColor
free $worldPos
free $worldNormal