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False positive validation warnings about SPIR-V layout #35

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jkunstwald opened this issue Jun 16, 2020 · 0 comments
Open

False positive validation warnings about SPIR-V layout #35

jkunstwald opened this issue Jun 16, 2020 · 0 comments
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vulkan Related to the Vulkan backend

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@jkunstwald
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jkunstwald commented Jun 16, 2020 •
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If using shaders compiled with the -fvk-use-dx-layout DXC flag, validation layers warn about incorrect stride, ie. if using an array of float3 which is no longer padded to 16 bytes. This remains the case with the enabled VK_KHR_relaxed_block_layout extension (which shouldn't be necessary as it is core in Vk 1.1)

Related (closed) issues:
KhronosGroup/Vulkan-ValidationLayers#275
microsoft/DirectXShaderCompiler#1498
Error might be on our side, but consequences are just warnings and possibly disabled GBV instrumentation.
@jkunstwald jkunstwald added the vulkan Related to the Vulkan backend label Jun 16, 2020
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