30 lines
642 B
GLSL
30 lines
642 B
GLSL
// Copyright 2020 Google LLC
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struct UBO
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{
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float4x4 projection;
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float4x4 model;
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};
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cbuffer ubo : register(b0) { UBO ubo; }
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struct VSOutput
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{
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float4 Pos : SV_POSITION;
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[[vk::location(0)]] float3 UVW : TEXCOORD0;
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};
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VSOutput main([[vk::location(0)]] float3 Pos : POSITION0)
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{
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VSOutput output = (VSOutput)0;
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output.UVW = Pos;
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// Convert cubemap coordinates into Vulkan coordinate space
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output.UVW.xy *= -1.0;
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// Remove translation from view matrix
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float4x4 viewMat = ubo.model;
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viewMat[0][3] = 0.0;
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viewMat[1][3] = 0.0;
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viewMat[2][3] = 0.0;
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output.Pos = mul(ubo.projection, mul(viewMat, float4(Pos.xyz, 1.0)));
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return output;
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}
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