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-rw-r--r--source/slang/slang-emit-spirv.cpp10
1 files changed, 10 insertions, 0 deletions
diff --git a/source/slang/slang-emit-spirv.cpp b/source/slang/slang-emit-spirv.cpp
index 63ebfcf6e..51ff9066c 100644
--- a/source/slang/slang-emit-spirv.cpp
+++ b/source/slang/slang-emit-spirv.cpp
@@ -5303,6 +5303,16 @@ struct SPIRVEmitContext : public SourceEmitterBase, public SPIRVEmitSharedContex
SpvBuiltInShadingRateKHR,
inst);
}
+ else if (semanticName == "sv_startvertexlocation")
+ {
+ requireSPIRVCapability(SpvCapabilityDrawParameters);
+ return getBuiltinGlobalVar(inst->getFullType(), SpvBuiltInBaseVertex, inst);
+ }
+ else if (semanticName == "sv_startinstancelocation")
+ {
+ requireSPIRVCapability(SpvCapabilityDrawParameters);
+ return getBuiltinGlobalVar(inst->getFullType(), SpvBuiltInBaseInstance, inst);
+ }
SLANG_UNREACHABLE("Unimplemented system value in spirv emit.");
}
}