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Move worldpos into it's own varying.

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Previously it was packed into spare slots in clippos.xy and normal.w,
but it's ugly and more importantly it's causing bugs.

This was discovered during the debugging of a zfreeze branch, which
expected clippos.xy to be xy position coordinates in clipspace (as
the name suggested).

Turns out the stereoscopy shader had also run into this trap, modifying
clippos.x (introducing errors with per-pixel lighting).

This commit has been moved outside of the zfreeze PR for fast merging.
This commit is contained in:
Scott Mansell
2015-01-03 01:44:04 +13:00
parent 9c6795c7b7
commit 1b771deb56
4 changed files with 24 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
Source/Core/VideoCommon/PixelShaderGen.cpp
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@ -342,7 +342,8 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
out.Write("centroid in float4 clipPos;\n");
if (g_ActiveConfig.bEnablePixelLighting)
{
out.Write("centroid in float4 Normal;\n");
out.Write("centroid in float3 Normal;\n");
out.Write("centroid in float3 WorldPos;\n");
}
}
@ -371,7 +372,10 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
out.Write(",\n in centroid float3 uv%d : TEXCOORD%d", i, i);
out.Write(",\n in centroid float4 clipPos : TEXCOORD%d", numTexgen);
if (g_ActiveConfig.bEnablePixelLighting)
out.Write(",\n in centroid float4 Normal : TEXCOORD%d", numTexgen + 1);
{
out.Write(",\n in centroid float3 Normal : TEXCOORD%d", numTexgen + 1);
out.Write(",\n in centroid float3 WorldPos : TEXCOORD%d", numTexgen + 2);
}
uid_data->stereo = g_ActiveConfig.iStereoMode > 0;
if (g_ActiveConfig.iStereoMode > 0)
out.Write(",\n in uint layer : SV_RenderTargetArrayIndex\n");
@ -389,7 +393,7 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
if (g_ActiveConfig.bEnablePixelLighting)
{
out.Write("\tfloat3 _norm0 = normalize(Normal.xyz);\n\n");
out.Write("\tfloat3 pos = float3(clipPos.x,clipPos.y,Normal.w);\n");
out.Write("\tfloat3 pos = WorldPos;\n");
out.Write("\tint4 lacc;\n"
"\tfloat3 ldir, h;\n"