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XCEngine/engine/assets/builtin/shaders/forward-lit/forward-lit.ps.hlsl

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1.1 KiB
HLSL

// XC_BUILTIN_FORWARD_LIT_D3D12_PS
Texture2D gBaseColorTexture : register(t1);
SamplerState gLinearSampler : register(s1);
cbuffer PerObjectConstants : register(b1) {
float4x4 gProjectionMatrix;
float4x4 gViewMatrix;
float4x4 gModelMatrix;
float4x4 gNormalMatrix;
float4 gMainLightDirectionAndIntensity;
float4 gMainLightColorAndFlags;
};
cbuffer MaterialConstants : register(b2) {
float4 gBaseColorFactor;
};
struct PSInput {
float4 position : SV_POSITION;
float3 normalWS : TEXCOORD0;
float2 texcoord : TEXCOORD1;
};
float4 MainPS(PSInput input) : SV_TARGET {
float4 baseColor = gBaseColorTexture.Sample(gLinearSampler, input.texcoord) * gBaseColorFactor;
if (gMainLightColorAndFlags.a < 0.5f) {
return baseColor;
}
float3 normalWS = normalize(input.normalWS);
float3 directionToLightWS = normalize(gMainLightDirectionAndIntensity.xyz);
float diffuse = saturate(dot(normalWS, directionToLightWS));
float3 lighting = float3(0.28f, 0.28f, 0.28f) +
gMainLightColorAndFlags.rgb * (diffuse * gMainLightDirectionAndIntensity.w);
return float4(baseColor.rgb * lighting, baseColor.a);
}