40 lines
1.1 KiB
GLSL
40 lines
1.1 KiB
GLSL
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// Copyright 2020 Google LLC
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Texture2D textureColor : register(t1);
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SamplerState samplerColor : register(s1);
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Texture2D textureNormalMap : register(t2);
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SamplerState samplerNormalMap : register(s2);
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struct VSOutput
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{
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[[vk::location(0)]] float3 Normal : NORMAL0;
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[[vk::location(1)]] float2 UV : TEXCOORD0;
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[[vk::location(2)]] float3 Color : COLOR0;
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[[vk::location(3)]] float3 WorldPos : POSITION0;
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[[vk::location(4)]] float3 Tangent : TEXCOORD1;
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};
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struct FSOutput
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{
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float4 Position : SV_TARGET0;
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float4 Normal : SV_TARGET1;
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float4 Albedo : SV_TARGET2;
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};
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FSOutput main(VSOutput input)
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{
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FSOutput output = (FSOutput)0;
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output.Position = float4(input.WorldPos, 1.0);
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// Calculate normal in tangent space
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float3 N = normalize(input.Normal);
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N.y = -N.y;
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float3 T = normalize(input.Tangent);
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float3 B = cross(N, T);
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float3x3 TBN = float3x3(T, B, N);
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float3 tnorm = mul(normalize(textureNormalMap.Sample(samplerNormalMap, input.UV).xyz * 2.0 - float3(1.0, 1.0, 1.0)), TBN);
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output.Normal = float4(tnorm, 1.0);
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output.Albedo = textureColor.Sample(samplerColor, input.UV);
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return output;
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}
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