Implement raytracing extension(s); resolves #3560 for GLSL & SPIR-V targets (#3675)

The following PR implements raytracing extensions (GLSL_EXT_ray_tracing, GLSL_EXT_ray_query, GLSL_NV_shader_invocation_reorder & GLSL_NV_ray_tracing_motion_blur); for GLSL & SPIR-V targets. Fully implements all functions, built-in variables, & syntax; resolves #3560 for GLSL & SPIR-V Targets.

notes of worth:

* __rayPayloadFromLocation, __rayAttributeFromLocation, and __rayCallableFromLocation, were added as SPIR-V Intrinsics to refer to location's of raytracing objects in SPIR-V for when using GLSL syntax.

1 files changed, 14 insertions, 0 deletions

diff --git a/source/slang/slang-check-modifier.cpp b/source/slang/slang-check-modifier.cpp
index eae993dc7..17215d284 100644
--- a/source/slang/slang-check-modifier.cpp
+++ b/source/slang/slang-check-modifier.cpp
@@ -707,6 +707,13 @@ namespace Slang
 
             rayPayloadAttr->location = (int32_t)val->getValue();
         }
+        else if (auto rayPayloadInAttr = as<VulkanRayPayloadInAttribute>(attr))
+        {
+            SLANG_ASSERT(attr->args.getCount() == 1);
+            auto val = checkConstantIntVal(attr->args[0]);
+            if (!val) return false;
+            rayPayloadInAttr->location = (int32_t)val->getValue();
+        }
         else if (auto callablePayloadAttr = as<VulkanCallablePayloadAttribute>(attr))
         {
             SLANG_ASSERT(attr->args.getCount() == 1);
@@ -716,6 +723,13 @@ namespace Slang
 
             callablePayloadAttr->location = (int32_t)val->getValue();
         }
+        else if (auto callablePayloadInAttr = as<VulkanCallablePayloadInAttribute>(attr))
+        {
+            SLANG_ASSERT(attr->args.getCount() == 1);
+            auto val = checkConstantIntVal(attr->args[0]);
+            if (!val) return false;
+            callablePayloadInAttr->location = (int32_t)val->getValue();
+        }
         else if (auto hitObjectAttributesAttr = as<VulkanHitObjectAttributesAttribute>(attr))
         {
             SLANG_ASSERT(attr->args.getCount() == 1);