98 lines
2.1 KiB
Plaintext
98 lines
2.1 KiB
Plaintext
Shader "Custom/ShadowDrawer"
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{
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Properties
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{
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_Color ("Shadow Color", Color) = (0, 0, 0, 0.6)
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}
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CGINCLUDE
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#include "UnityCG.cginc"
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#include "AutoLight.cginc"
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struct v2f_shadow {
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float4 pos : SV_POSITION;
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float3 worldPos : TEXCOORD0;
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UNITY_LIGHTING_COORDS(1, 2)
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};
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half4 _Color;
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v2f_shadow vert_shadow(appdata_full v)
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{
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v2f_shadow o;
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UNITY_INITIALIZE_OUTPUT(v2f_shadow, o);
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o.pos = UnityObjectToClipPos(v.vertex);
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o.worldPos = mul(unity_ObjectToWorld, v.vertex).xyz;
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UNITY_TRANSFER_LIGHTING(o, v.texcoord1);
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return o;
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}
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half4 frag_shadow(v2f_shadow IN) : SV_Target
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{
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UNITY_LIGHT_ATTENUATION(atten, IN, IN.worldPos);
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return half4(_Color.rgb, lerp(_Color.a, 0, atten));
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}
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ENDCG
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SubShader
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{
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Tags { "Queue"="AlphaTest+49" }
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// Depth fill pass
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Pass
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{
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ColorMask 0
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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struct v2f {
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float4 pos : SV_POSITION;
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};
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v2f vert(appdata_full v)
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{
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v2f o;
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o.pos = UnityObjectToClipPos(v.vertex);
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return o;
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}
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half4 frag(v2f IN) : SV_Target
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{
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return (half4)0;
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}
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ENDCG
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}
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// Forward base pass
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Pass
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{
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Tags { "LightMode" = "ForwardBase" }
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Blend SrcAlpha OneMinusSrcAlpha
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CGPROGRAM
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#pragma vertex vert_shadow
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#pragma fragment frag_shadow
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#pragma multi_compile_fwdbase
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ENDCG
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}
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// Forward add pass
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Pass
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{
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Tags { "LightMode" = "ForwardAdd" }
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Blend SrcAlpha OneMinusSrcAlpha
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CGPROGRAM
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#pragma vertex vert_shadow
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#pragma fragment frag_shadow
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#pragma multi_compile_fwdadd_fullshadows
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ENDCG
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}
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}
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FallBack "Mobile/VertexLit"
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}
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