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Merge pull request #3338 from ReinUsesLisp/no-fastmath

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gl_shader_cache: Disable fastmath on Nvidia
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Fernando Sahmkow 2020-01-23 10:08:45 -04:00 committed by GitHub
commit 9c6b5cae68
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src/video_core/renderer_opengl/gl_shader_cache.cpp
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@ -260,6 +260,10 @@ CachedProgram BuildShader(const Device& device, u64 unique_identifier, ShaderTyp
"#extension GL_NV_shader_thread_group : require\n" "#extension GL_NV_shader_thread_group : require\n"
"#extension GL_NV_shader_thread_shuffle : require\n"; "#extension GL_NV_shader_thread_shuffle : require\n";
} }
// This pragma stops Nvidia's driver from over optimizing math (probably using fp16 operations)
// on places where we don't want to.
// Thanks to Ryujinx for finding this workaround.
source += "#pragma optionNV(fastmath off)\n";
if (shader_type == ShaderType::Geometry) { if (shader_type == ShaderType::Geometry) {
const auto [glsl_topology, max_vertices] = GetPrimitiveDescription(variant.primitive_mode); const auto [glsl_topology, max_vertices] = GetPrimitiveDescription(variant.primitive_mode);