55 lines
1.1 KiB
Plaintext
55 lines
1.1 KiB
Plaintext
Shader "MY/Shadow"
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{
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Properties{
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_ShadowTex("Shadow", 2D) = "gray" {}
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_FadeTex("FadeTex", 2D) = "white" {}
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_Alpha("Alpha", Range(0,1)) = 0.6
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}
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SubShader{
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Tags { "Queue" = "Transparent" }
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Pass {
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ZWrite Off
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Fog { Mode Off }
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ColorMask RGB
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Blend DstColor Zero
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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struct v2f {
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float4 pos:POSITION;
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float4 sproj:TEXCOORD0;
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float4 fproj:TEXCOORD1;
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};
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float4x4 unity_Projector;
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float4x4 unity_ProjectorClip;
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fixed _Alpha;
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sampler2D _ShadowTex;
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sampler2D _FadeTex;
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v2f vert(float4 vertex:POSITION) {
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v2f o;
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o.pos = UnityObjectToClipPos(vertex);
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o.sproj = mul(unity_Projector, vertex);
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o.fproj = mul(unity_ProjectorClip, vertex);
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return o;
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}
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fixed4 frag(v2f i) :COLOR{
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fixed4 c = tex2Dproj(_ShadowTex, UNITY_PROJ_COORD(i.sproj));
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fixed fade = tex2Dproj(_FadeTex, UNITY_PROJ_COORD(i.sproj)).g;
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fixed4 result;
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result.rgb = lerp(fixed3(1, 1, 1), 1 - c.a, _Alpha);
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result.rgb += 1 - fade;
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result.a = 1;
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return result;
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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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