59 lines
1.3 KiB
Plaintext
59 lines
1.3 KiB
Plaintext
// clang-format off
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Shader "Unlit/OverwriteAlpha"
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{
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Properties
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{
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_Alpha("Alpha", Range (0.0, 1.0)) = 0.0
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}
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SubShader
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{
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Tags { "RenderType"="Opaque" }
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LOD 100
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Cull Off
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ZTest Always
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ZWrite Off
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// we want to keep the color buffer as is, but override the alpha
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Blend Zero One, One Zero
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Pass
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{
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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// make fog work
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#pragma multi_compile_fog
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#include "UnityCG.cginc"
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struct appdata
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{
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float4 vertex : POSITION;
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};
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struct v2f
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{
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UNITY_FOG_COORDS(1)
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float4 vertex : SV_POSITION;
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};
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v2f vert (appdata v)
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{
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v2f o;
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o.vertex = UnityObjectToClipPos(v.vertex);
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// Push the z to the far plane
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//o.vertex.z = 1.0 - UNITY_NEAR_CLIP_VALUE;
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return o;
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}
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float _Alpha;
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fixed4 frag (v2f i) : SV_Target
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{
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// apply fog
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return float4(0,0,0, _Alpha);
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}
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ENDCG
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}
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}
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}
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