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| author | Hans-Kristian Arntzen <post@arntzen-software.no> | 2020-08-20 17:22:48 +0300 |
|---|---|---|
| committer | Hans-Kristian Arntzen <post@arntzen-software.no> | 2020-08-20 17:22:48 +0300 |
| commit | fdbc80d13158e88b33a6765ae57b661a813b4a2c (patch) | |
| tree | 7240fc10cbe7da26ac41536a425687aae5ef0dcf /spirv_hlsl.cpp | |
| parent | 4c7944bb4260ab0466817c932a9673b6cf59438e (diff) | |
HLSL: Fix FragCoord.w.
Need to invert it, SM 4.0+ uses W, not 1/W (like Vulkan/GL).
Diffstat (limited to 'spirv_hlsl.cpp')
| -rw-r--r-- | spirv_hlsl.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/spirv_hlsl.cpp b/spirv_hlsl.cpp index 7a33559a..51b3dd48 100644 --- a/spirv_hlsl.cpp +++ b/spirv_hlsl.cpp @@ -2396,7 +2396,11 @@ void CompilerHLSL::emit_hlsl_entry_point() if (legacy) statement(builtin, " = stage_input.", builtin, " + float4(0.5f, 0.5f, 0.0f, 0.0f);"); else + { statement(builtin, " = stage_input.", builtin, ";"); + // ZW are undefined in D3D9, only do this fixup here. + statement(builtin, ".w = 1.0 / ", builtin, ".w;"); + } break; case BuiltInVertexId: |