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Convert NaN to 1 when generating texture coordinates 

This fixes eyelids in Shadow the Hedgehog during cutscenes (https://bugs.dolphin-emu.org/issues/11458)
This commit is contained in:
Pokechu22 2021-07-20 19:00:29 -07:00
parent 55a465c6e6
commit 3a4d8379bf
3 changed files with 23 additions and 0 deletions
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9
Source/Core/VideoBackends/Software/TransformUnit.cpp
View File

@ -137,6 +137,15 @@ static void TransformTexCoordRegular(const TexMtxInfo& texinfo, int coordNum,
}
}
// Convert NaNs to 1 - needed to fix eyelids in Shadow the Hedgehog during cutscenes
// See https://bugs.dolphin-emu.org/issues/11458
if (std::isnan(src.x))
src.x = 1;
if (std::isnan(src.y))
src.y = 1;
if (std::isnan(src.z))
src.z = 1;
const float* mat = &xfmem.posMatrices[srcVertex->texMtx[coordNum] * 4];
Vec3* dst = &dstVertex->texCoords[coordNum];

7
Source/Core/VideoCommon/UberShaderVertex.cpp
View File

@ -435,6 +435,13 @@ static void GenVertexShaderTexGens(APIType api_type, u32 num_texgen, ShaderCode&
out.Write(" coord.z = 1.0f;\n"
"\n");
// Convert NaNs to 1 - needed to fix eyelids in Shadow the Hedgehog during cutscenes
// See https://bugs.dolphin-emu.org/issues/11458
out.Write(" // Convert NaN to 1\n");
out.Write(" if (isnan(coord.x)) coord.x = 1.0;\n");
out.Write(" if (isnan(coord.y)) coord.y = 1.0;\n");
out.Write(" if (isnan(coord.z)) coord.z = 1.0;\n");
out.Write(" // first transformation\n");
out.Write(" uint texgentype = {};\n", BitfieldExtract<&TexMtxInfo::texgentype>("texMtxInfo"));
out.Write(" float3 output_tex;\n"

7
Source/Core/VideoCommon/VertexShaderGen.cpp
View File

@ -332,6 +332,13 @@ ShaderCode GenerateVertexShaderCode(APIType api_type, const ShaderHostConfig& ho
if (texinfo.inputform == TexInputForm::AB11)
out.Write("coord.z = 1.0;\n");
// Convert NaNs to 1 - needed to fix eyelids in Shadow the Hedgehog during cutscenes
// See https://bugs.dolphin-emu.org/issues/11458
out.Write("// Convert NaN to 1\n");
out.Write("if (isnan(coord.x)) coord.x = 1.0;\n");
out.Write("if (isnan(coord.y)) coord.y = 1.0;\n");
out.Write("if (isnan(coord.z)) coord.z = 1.0;\n");
// first transformation
switch (texinfo.texgentype)
{