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, 12 insertions, 3 deletions

diff --git a/source/slang/slang-capabilities.capdef b/source/slang/slang-capabilities.capdef
index cf2cd5791..b8d97d021 100644
--- a/source/slang/slang-capabilities.capdef
+++ b/source/slang/slang-capabilities.capdef
@@ -180,10 +180,12 @@ def _GL_ARB_fragment_shader_interlock : glsl;
 def _GL_ARB_gpu_shader5 : glsl;
 def _GL_ARB_sparse_texture_clamp : glsl;
 def _GL_EXT_buffer_reference : glsl;
+def _GL_EXT_buffer_reference_uvec2 : glsl;
 def _GL_EXT_debug_printf : glsl;
 def _GL_EXT_fragment_shader_barycentric : glsl;
 def _GL_EXT_mesh_shader : glsl;
 def _GL_EXT_nonuniform_qualifier : glsl;
+def _GL_EXT_ray_query : glsl_spirv_1_4;
 def _GL_EXT_ray_tracing : glsl_spirv_1_4;
 def _GL_EXT_ray_tracing_position_fetch : glsl_spirv_1_4;
 def _GL_EXT_samplerless_texture_functions : glsl;
@@ -214,10 +216,12 @@ alias GL_ARB_fragment_shader_interlock = _GL_ARB_fragment_shader_interlock | spv
 alias GL_ARB_gpu_shader5 = _GL_ARB_fragment_shader_interlock | spirv_1_0;
 alias GL_ARB_sparse_texture_clamp = _GL_ARB_fragment_shader_interlock | spirv_1_0;
 alias GL_EXT_buffer_reference = _GL_ARB_fragment_shader_interlock | spirv_1_5;
+alias GL_EXT_buffer_reference_uvec2 = _GL_EXT_buffer_reference_uvec2 | spirv_1_0;
 alias GL_EXT_debug_printf = _GL_EXT_debug_printf | SPV_KHR_non_semantic_info;
 alias GL_EXT_fragment_shader_barycentric = _GL_EXT_fragment_shader_barycentric | spvFragmentBarycentricKHR;
 alias GL_EXT_mesh_shader = _GL_EXT_mesh_shader | spvMeshShadingEXT;
 alias GL_EXT_nonuniform_qualifier = _GL_EXT_nonuniform_qualifier | spvShaderNonUniform;
+alias GL_EXT_ray_query = _GL_EXT_ray_query | spvRayTracingKHR + spvRayQueryKHR;
 alias GL_EXT_ray_tracing = _GL_EXT_ray_tracing | spvRayTracingKHR + spvRayQueryKHR;
 alias GL_EXT_ray_tracing_position_fetch = _GL_EXT_ray_tracing_position_fetch | spvRayTracingPositionFetchKHR + spvRayQueryPositionFetchKHR;
 alias GL_EXT_samplerless_texture_functions = _GL_EXT_samplerless_texture_functions | spirv_1_0;
@@ -246,11 +250,16 @@ alias GL_NV_ray_tracing = GL_EXT_ray_tracing;
 // Define feature names
 
 alias nvapi = hlsl_nvapi;
-alias raytracing = spvRayTracingKHR + spvRayQueryKHR + spvRayQueryPositionFetchKHR | _GL_EXT_ray_tracing+_GL_EXT_ray_tracing_position_fetch | _sm_6_5 | cuda;
-alias ser = spvShaderInvocationReorderNV | _GL_NV_shader_invocation_reorder | _sm_6_6 + hlsl_nvapi;
+alias raytracing = GL_EXT_ray_tracing | _sm_6_5 | cuda;
+alias raytracing_pos = GL_EXT_ray_tracing + GL_EXT_ray_tracing_position_fetch | _sm_6_5 | cuda;
+alias rayquery_pos = GL_EXT_ray_query + GL_EXT_ray_tracing_position_fetch | _sm_6_5 | cuda;
+alias rayquery = GL_EXT_ray_query | _sm_6_5 | cuda;
+alias ser = GL_EXT_buffer_reference_uvec2 + GL_NV_shader_invocation_reorder + GL_EXT_ray_tracing | _sm_6_6 + hlsl_nvapi;
+alias ser_motion = GL_EXT_buffer_reference_uvec2 + GL_NV_shader_invocation_reorder + GL_EXT_ray_tracing + GL_NV_ray_tracing_motion_blur | _sm_6_6 + hlsl_nvapi;
 alias shaderclock = spvShaderClockKHR | hlsl_nvapi | _GL_EXT_shader_realtime_clock | cpp | cuda;
 alias meshshading = spvMeshShadingEXT | _sm_6_5 | _GL_EXT_mesh_shader;
-alias motionblur = spvRayTracingMotionBlurNV | hlsl_nvapi | _GL_NV_ray_tracing_motion_blur;
+alias raytracing_motionblur = GL_EXT_ray_tracing + GL_NV_ray_tracing_motion_blur | hlsl_nvapi + _sm_6_5;
+alias motionblur = GL_NV_ray_tracing_motion_blur | hlsl_nvapi;
 alias texturefootprint = GL_NV_shader_texture_footprint | hlsl_nvapi;
 alias fragmentshaderinterlock = _GL_ARB_fragment_shader_interlock | hlsl_nvapi | spvFragmentShaderPixelInterlockEXT;
 alias atomic64 = GL_EXT_shader_atomic_int64 | _sm_6_6 | cpp | cuda;