Added HLSL shader for descriptor indexing sample

data/shaders/glsl/descriptorindexing/descriptorindexing.frag

@@ -1,3 +1,5 @@
+// Copyright 2021 Sascha Willems
+
 #version 450
 
 #extension GL_EXT_nonuniform_qualifier : require

data/shaders/glsl/descriptorindexing/descriptorindexing.vert

@@ -1,3 +1,5 @@
+// Copyright 2021 Sascha Willems
+
 #version 450
 
 layout (location = 0) in vec3 inPos;

data/shaders/hlsl/compile.py

@@ -64,5 +64,6 @@ for root, dirs, files in os.walk(dir_path):
                 '-fspv-extension=SPV_NV_ray_tracing',
                 '-fspv-extension=SPV_KHR_multiview',
                 '-fspv-extension=SPV_KHR_shader_draw_parameters',
+                '-fspv-extension=SPV_EXT_descriptor_indexing',
                 hlsl_file,
                 '-Fo', spv_out])

data/shaders/hlsl/descriptorindexing/descriptorindexing.frag

@@ -0,0 +1,17 @@
+// Copyright 2021 Sascha Willems
+// Non-uniform access is enabled at compile time via SPV_EXT_descriptor_indexing (see compile.py)
+
+Texture2D textures[] : register(t1);
+SamplerState samplerColorMap : register(s1);
+
+struct VSOutput
+{
+	float4 Pos : SV_POSITION;
+[[vk::location(0)]] int TextureIndex : TEXTUREINDEX0;
+[[vk::location(1)]] float2 UV : TEXCOORD0;
+};
+
+float4 main(VSOutput input) : SV_TARGET
+{
+	return textures[NonUniformResourceIndex(input.TextureIndex)].Sample(samplerColorMap, input.UV); 
+}

data/shaders/hlsl/descriptorindexing/descriptorindexing.vert

@@ -0,0 +1,32 @@
+// Copyright 2021 Sascha Willems
+
+struct VSInput
+{
+[[vk::location(0)]] float3 Pos : POSITION0;
+[[vk::location(1)]] float2 UV : TEXCOORD0;
+[[vk::location(2)]] int TextureIndex : TEXTUREINDEX0;
+};
+
+struct Matrices {
+	float4x4 projection;
+	float4x4 view;
+	float4x4 model;
+};
+
+cbuffer matrices : register(b0) { Matrices matrices; };
+
+struct VSOutput
+{
+	float4 Pos : SV_POSITION;
+[[vk::location(0)]] int TextureIndex : TEXTUREINDEX0;
+[[vk::location(1)]] float2 UV : TEXCOORD0;
+};
+
+VSOutput main(VSInput input)
+{
+	VSOutput output = (VSOutput)0;
+	output.UV = input.UV;
+	output.TextureIndex = input.TextureIndex;
+	output.Pos = mul(matrices.projection, mul(matrices.view, mul(matrices.model, float4(input.Pos.xyz, 1.0))));
+	return output;
+}