74 lines
1.9 KiB
GLSL
74 lines
1.9 KiB
GLSL
Shader "Builtin Shadow Caster"
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{
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Properties
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{
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_BaseColor ("Base Color", Color) = (1,1,1,1) [Semantic(BaseColor)]
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_Cutoff ("Alpha Cutoff", Range) = 0.5 [Semantic(AlphaCutoff)]
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_MainTex ("Base Map", 2D) = "white" [Semantic(BaseColorTexture)]
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}
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HLSLINCLUDE
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cbuffer PerObjectConstants : register(b0)
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{
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float4x4 gProjectionMatrix;
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float4x4 gViewMatrix;
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float4x4 gModelMatrix;
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};
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cbuffer MaterialConstants : register(b1)
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{
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float4 gBaseColorFactor;
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float4 gAlphaCutoffParams;
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};
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Texture2D BaseColorTexture : register(t0);
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SamplerState LinearClampSampler : register(s0);
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struct VSInput
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{
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float3 position : POSITION;
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float3 normal : NORMAL;
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float2 texcoord : TEXCOORD0;
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};
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struct PSInput
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{
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float4 position : SV_POSITION;
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float2 texcoord : TEXCOORD0;
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};
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PSInput MainVS(VSInput input)
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{
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PSInput output;
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const float4 positionWS = mul(gModelMatrix, float4(input.position, 1.0f));
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const float4 positionVS = mul(gViewMatrix, positionWS);
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output.position = mul(gProjectionMatrix, positionVS);
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output.texcoord = input.texcoord;
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return output;
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}
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float MainPS(PSInput input) : SV_Depth
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{
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#ifdef XC_ALPHA_TEST
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const float4 baseColor =
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BaseColorTexture.Sample(LinearClampSampler, input.texcoord) * gBaseColorFactor;
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clip(baseColor.a - gAlphaCutoffParams.x);
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#endif
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return input.position.z;
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}
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ENDHLSL
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SubShader
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{
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Pass
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{
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Name "ShadowCaster"
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Tags { "LightMode" = "ShadowCaster" }
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HLSLPROGRAM
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#pragma target 4.5
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#pragma vertex MainVS
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#pragma fragment MainPS
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#pragma shader_feature_local _ XC_ALPHA_TEST
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ENDHLSL
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}
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}
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}
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