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Cxbx-Reloaded
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Fix passthru not passing through all components 

Previous behaviour aligned with ps_1_3 texcoord, where alpha = 1
but appears to be incorrect.
Note ps_1_4 texcrd leaves alpha undefined
Fixes Metal Arms menu clouds
This commit is contained in:
Anthony 2021-05-19 22:31:54 +12:00 committed by PatrickvL
parent a8fae55299
commit fa0a114e0c
1 changed files with 5 additions and 1 deletions
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6
src/core/hle/D3D8/Direct3D9/CxbxPixelShaderTemplate.hlsl
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@ -284,7 +284,11 @@ float3 DoBumpEnv(const float4 TexCoord, const float4 BumpEnvMat, const float4 sr
#define CalcDot(ts) PS_DOTMAPPING_ ## ts(src(ts)); dot_[ts] = dot(iT[ts].xyz, dm)
// Addressing operations
#define Passthru(ts) float4(saturate(iT[ts].xyz), 1) // Clamps input texture coordinates to the range [0..1]
// Clamps input texture coordinates to the range [0..1]
// Note alpha is passed through rather than set to one like ps_1_3 'texcoord'
// Test case: Metal Arms (menu skybox clouds, alpha is specifically set in the VS)
#define Passthru(ts) float4(saturate(iT[ts]))
#define Brdf(ts) float3(t[ts-2].y, t[ts-1].y, t[ts-2].x - t[ts-1].x) // TODO : Complete 16 bit phi/sigma retrieval from float4 texture register. Perhaps use CalcHiLo?
#define Normal2(ts) float3(dot_[ts-1], dot_[ts], 0) // Preceding and current stage dot result. Will be input for Sample2D.
#define Normal3(ts) float3(dot_[ts-2], dot_[ts-1], dot_[ts]) // Two preceding and current stage dot result.