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Hash : a0cc64cd
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Date : 2025-09-10T15:18:17
HLSL: Mark shadow sampler textureLod calls as using gradients TextureLod calls bottom out in the HLSL SampleCmp function which does not take a LOD parameter so we end up dropping it. This causes them to need gradients. Mark them as using gradient so that any loop they are used in is flagged and not unrolled by FXC. Reverted original fix from https://chromium-review.googlesource.com/c/angle/angle/+/6421496 because the wrong number of parameters are passed to the generated comparison sampling function when it is changed to LOD0. Thanks to Mikkel Simonsen at Unity and Calder Young for the tests. Fixed: angleproject:406190894 Change-Id: Ia9255e4336099045366c02f945a3c4de8075427a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6936488 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Kenneth Russell <kbr@chromium.org>
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Files
- ASTMetadataHLSL.cpp
- ASTMetadataHLSL.h
- AtomicCounterFunctionHLSL.cpp
- AtomicCounterFunctionHLSL.h
- BuiltInFunctionEmulatorHLSL.cpp
- BuiltInFunctionEmulatorHLSL.h
- ImageFunctionHLSL.cpp
- ImageFunctionHLSL.h
- OutputHLSL.cpp
- OutputHLSL.h
- ResourcesHLSL.cpp
- ResourcesHLSL.h
- ShaderStorageBlockFunctionHLSL.cpp
- ShaderStorageBlockFunctionHLSL.h
- ShaderStorageBlockOutputHLSL.cpp
- ShaderStorageBlockOutputHLSL.h
- StructureHLSL.cpp
- StructureHLSL.h
- TextureFunctionHLSL.cpp
- TextureFunctionHLSL.h
- TranslatorHLSL.cpp
- TranslatorHLSL.h
- UtilsHLSL.cpp
- UtilsHLSL.h
- blocklayoutHLSL.cpp
- blocklayoutHLSL.h
- emulated_builtin_function_data_hlsl.json
- emulated_builtin_functions_hlsl_autogen.cpp
- gen_emulated_builtin_function_tables.py
