40 lines
1.2 KiB
HLSL
40 lines
1.2 KiB
HLSL
struct Input
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{
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uint VertexIndex : SV_VertexID;
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};
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struct Output
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{
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float4 Color : TEXCOORD0;
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float4 Position : SV_Position;
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};
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// Bindless storage buffer access
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// We assume DescriptorIndex 0 is our buffer for this example, or passed via push constant
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// Since we don't have push constants hooked up in the C++ simplified example yet,
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// we will assume the First descriptor in the heap is our buffer (Index 0).
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// In a real app, 'bufferIndex' would be passed as a Root Constant.
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Output main(Input input)
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{
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Output output;
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// Retrieve the buffer using SM6.6 bindless syntax
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// heap index 0 is used for simplicity.
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uint bufferIndex = 0;
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ByteAddressBuffer buffer = ResourceDescriptorHeap[bufferIndex];
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// Read position from buffer (Index * stride)
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// Stride = 2 float (pos) + 4 float (color) = 6 * 4 = 24 bytes ?
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// Let's assume just position 2D (8 bytes) + Color (16 bytes)
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uint stride = 24;
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uint offset = input.VertexIndex * stride;
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float2 pos = asfloat(buffer.Load2(offset));
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float4 col = asfloat(buffer.Load4(offset + 8));
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output.Position = float4(pos, 0.0f, 1.0f);
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output.Color = col;
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return output;
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}
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