#ifndef SPRITE_SHADOWS_INCLUDED
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#define SPRITE_SHADOWS_INCLUDED
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#include "ShaderShared.cginc"
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////////////////////////////////////////
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// Vertex structs
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//
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struct vertexInput
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{
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float4 vertex : POSITION;
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float4 texcoord : TEXCOORD0;
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};
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struct vertexOutput
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{
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V2F_SHADOW_CASTER;
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float4 texcoordAndAlpha : TEXCOORD1;
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};
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////////////////////////////////////////
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// Vertex program
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//
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vertexOutput vert(vertexInput v, float4 vertexColor : COLOR)
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{
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vertexOutput o;
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TRANSFER_SHADOW_CASTER(o)
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o.texcoordAndAlpha.xy = calculateTextureCoord(v.texcoord);
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o.texcoordAndAlpha.z = 0;
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o.texcoordAndAlpha.a = vertexColor.a;
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return o;
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}
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////////////////////////////////////////
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// Fragment program
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//
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uniform fixed _ShadowAlphaCutoff;
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fixed4 frag(vertexOutput IN) : SV_Target
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{
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fixed4 texureColor = calculateTexturePixel(IN.texcoordAndAlpha.xy);
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clip(texureColor.a * IN.texcoordAndAlpha.a - _ShadowAlphaCutoff);
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SHADOW_CASTER_FRAGMENT(IN)
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}
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#endif // SPRITE_SHADOWS_INCLUDED
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