Moved kTLAS[] into common injected Slang code

Author: corporateshark

lvk/vulkan/VulkanClasses.cpp

@@ -5847,6 +5847,8 @@ lvk::ShaderModuleState lvk::VulkanContext::createShaderModuleFromSlang(ShaderSta
       "[[vk::binding(0, 2)]] TextureCube  kTexturesCube[];\n"
       "[[vk::binding(1, 0)]] SamplerState kSamplers[];\n"
       "[[vk::binding(3, 0)]] Sampler2D    kSamplersYUV[];\n";
+  // cannot handle unbounded arrays https://github.com/shader-slang/slang/issues/8902
+  addCode("kTLAS[", "[[vk::binding(4, 0)]] RaytracingAccelerationStructure kTLAS[];\n");
   addCode("textureBindless2D(",
           "float4 textureBindless2D(uint textureid, uint samplerid, float2 uv) {\n"
           "  return kTextures2D[NonUniformResourceIndex(textureid)].Sample(\n"

samples/RTX_001_Hello.cpp

@@ -8,6 +8,8 @@
 #include "VulkanApp.h"
 
 const char* codeSlang = R"(
+[[vk::binding(2, 0)]] RWTexture2D<float4> kTextures2DInOut[];
+
 struct Camera {
   float4x4 viewInverse;
   float4x4 projInverse;
@@ -22,10 +24,6 @@ struct PushConstants {
 
 [[vk::push_constant]] PushConstants pc;
 
-[[vk::binding(2, 0)]] RWTexture2D<float4> kTextures2DInOut[];
-// cannot handle unbounded arrays https://github.com/shader-slang/slang/issues/8902
-[[vk::binding(4, 0)]] RaytracingAccelerationStructure kTLAS[];
-
 struct RayPayload {
   float3 color;
 };