8000 Hardware transform: Clamp the specular coefficient to 0.0 before calling pow() by hrydgard · Pull Request #19489 · hrydgard/ppsspp · GitHub
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Hardware transform: Clamp the specular coefficient to 0.0 before calling pow() #19489

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Sep 25, 2024
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Hardware transform: Clamp the specular coefficient to 0.0 before calling pow() #19489

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2 changes: 1 addition & 1 deletion GPU/Common/VertexShaderGenerator.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1126,7 +1126,7 @@ bool GenerateVertexShader(const VShaderID &id, char *buffer, const ShaderLanguag
case GE_LIGHTTYPE_UNKNOWN:
p.F(" angle = dot(u_lightdir%s, toLight);\n", iStr, iStr);
p.F(" if (angle >= u_lightangle_spotCoef%s.x) {\n", iStr);
p.F(" lightScale = clamp(1.0 / dot(u_lightatt%s, vec3(1.0, distance, distance*distance)), 0.0, 1.0) * (u_lightangle_spotCoef%s.y <= 0.0 ? 1.0 : pow(angle, u_lightangle_spotCoef%s.y));\n", iStr, iStr, iStr);
p.F(" lightScale = clamp(1.0 / dot(u_lightatt%s, vec3(1.0, distance, distance*distance)), 0.0, 1.0) * (u_lightangle_spotCoef%s.y <= 0.0 ? 1.0 : pow(max(angle, 0.0), u_lightangle_spotCoef%s.y));\n", iStr, iStr, iStr);
p.C(" } else {\n");
p.C(" lightScale = 0.0;\n");
p.C(" }\n");
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