From ce87ab925d06a784eec194081e00a1b4c9b94d0c Mon Sep 17 00:00:00 2001 From: "Harsh Aggarwal (NVIDIA)" Date: Mon, 7 Apr 2025 13:26:11 +0530 Subject: Support for Payload Access Qualifiers (#3448) (#6595) * Add support for Ray Payload Access Qualifiers (PAQs) (#3448) - Added [raypayload] attribute for struct declarations - Implemented field validation requiring read/write access qualifiers - Added diagnostic error for missing qualifiers - Enabled PAQs in DXC compiler and HLSL emission - Added new test demonstrating PAQ syntax - Implemented proper handling of ray payload attributes in IR generation * format code * Cleanup: Remove unused vars * Add check to enablePAQ only for profile >= lib_6_7 * Review Fix - Add PAQ support for DX Raytracing add enablePAQ flag to DownstreamCompileOpitons, improve PAQ handling update raypayload-attribute-paq.slang to ensure hlsl and dxil is validated * Add diagnostic test for missing paq for lib_6_7 Compile using `-disable-payload-qualifiers` aka lib_6_6 profile raypayload-attribute-no-struct.slang and raypayload-attribute.slang --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Ellie Hermaszewska --- source/slang/slang-ast-modifier.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'source/slang/slang-ast-modifier.h') diff --git a/source/slang/slang-ast-modifier.h b/source/slang/slang-ast-modifier.h index 5f9ccb5bb..86c1b556c 100644 --- a/source/slang/slang-ast-modifier.h +++ b/source/slang/slang-ast-modifier.h @@ -1698,6 +1698,16 @@ class PayloadAttribute : public Attribute SLANG_AST_CLASS(PayloadAttribute) }; +/// A `[raypayload]` attribute indicates that a `struct` type will be used as +/// a ray payload for `TraceRay()` calls, and thus also as input/output +/// for shaders in the ray tracing pipeline that might be invoked for +/// such a ray. +/// +class RayPayloadAttribute : public Attribute +{ + SLANG_AST_CLASS(RayPayloadAttribute) +}; + /// A `[deprecated("message")]` attribute indicates the target is /// deprecated. /// A compiler warning including the message will be raised if the -- cgit v1.2.3