mirror of
https://github.com/mapbase-source/source-sdk-2013.git
synced 2025-06-08 03:42:09 +03:00
7309a5f13f
This should include the latest version of every shader that was in the 2007 SDK. It also includes a smattering of debug shaders, both VR distortion shaders, and other assorted shaders that will hopefully be useful. None of these new files are included in the game shader DLL project. If you need to modify one of these shaders for use in your mod you will need to rename it so that you don't collide with the version of that shader that lives in stdshader_dx9.dll.
106 lines
2.8 KiB
GLSL
106 lines
2.8 KiB
GLSL
vs.1.1
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# DYNAMIC: "DOWATERFOG" "0..1"
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# DYNAMIC: "SKINNING" "0..1"
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;------------------------------------------------------------------------------
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; Constants specified by the app
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; c0 = (0, 1, 2, 0.5)
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; c1 = (1/2.2, 0, 0, 0)
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; c2 = camera position *in world space*
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; c4-c7 = modelViewProj matrix (transpose)
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; c8-c11 = ViewProj matrix (transpose)
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; c12-c15 = model->view matrix (transpose)
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; c16 = [fogStart, fogEnd, fogRange, undefined]
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;
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; Vertex components (as specified in the vertex DECL)
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; $vPos = Position
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; $vTexCoord0.xy = TexCoord0
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;------------------------------------------------------------------------------
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#include "macros.vsh"
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; Vertex components
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; $vPos = Position
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; $vNormal = normal
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; $vTexCoord0.xy = TexCoord0
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; $vTangentS = S axis of Texture space
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; $vTangentT = T axis of Texture space
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;------------------------------------------------------------------------------
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; Transform the position from world to view space
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;------------------------------------------------------------------------------
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alloc $worldPos
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alloc $worldNormal
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alloc $worldTangentS
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alloc $worldTangentT
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&SkinPositionNormalAndTangentSpace( $worldPos, $worldNormal,
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$worldTangentS, $worldTangentT );
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alloc $projPos
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; Transform position from world to projection space
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dp4 $projPos.x, $worldPos, $cViewProj0
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dp4 $projPos.y, $worldPos, $cViewProj1
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dp4 $projPos.z, $worldPos, $cViewProj2
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dp4 $projPos.w, $worldPos, $cViewProj3
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&CalcFog( $worldPos, $projPos );
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alloc $worldEyeVect
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; Get the eye vector in world space
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add $worldEyeVect.xyz, -$worldPos, $cEyePos
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alloc $tangentEyeVect
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; transform the eye vector to tangent space
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dp3 oT3.x, $worldEyeVect, $worldTangentS
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dp3 oT3.y, $worldEyeVect, $worldTangentT
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dp3 oT3.z, $worldEyeVect, $worldNormal
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alloc $bumpTexCoord
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dp4 $bumpTexCoord.x, $vTexCoord0, $SHADER_SPECIFIC_CONST_1
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dp4 $bumpTexCoord.y, $vTexCoord0, $SHADER_SPECIFIC_CONST_2
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; dudv map
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mov oT0.xy, $bumpTexCoord
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; refract tint + alpha channel
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mov oT2.xy, $bumpTexCoord
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mov oT3.xy, $bumpTexCoord
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free $bumpTexCoord
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mov oPos, $projPos
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; special case perspective correct texture projection so that the texture fits exactly on the screen
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; flip Y by multiplying by -1
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mul $projPos.y, $projPos.y, $SHADER_SPECIFIC_CONST_4.w
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; transform from [-w,w] to [0,2*w]
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; The reason this is w is because we are in perspective space/homogenous clip space.
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add $projPos.xy, $projPos.xy, $projPos.w
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; transform from [0,2*w] to [0,w]
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; We'll end up dividing by w in the pixel shader to get to [0,1]
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mul $projPos.xy, $projPos.xy, $cHalf
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mov oT1.xy, $projPos.xy
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; emit w to both z and w in case the driver screws up and divides by z
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mov oT1.z, $projPos.w
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mov oT1.w, $projPos.w
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free $projPos
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free $worldPos
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free $worldEyeVect
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free $tangentEyeVect
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free $w
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free $worldNormal
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free $worldTangentS
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free $worldTangentT
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