101 lines
2.4 KiB
Plaintext
101 lines
2.4 KiB
Plaintext
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Shader "MY/ColourCastCutout" {
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Properties{
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_Color("Main Color", Color) = (1,1,1,1)
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_Bright("Bright", Float) = 1
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_Cutoff("Alpha cutoff", Range(0,1)) = 0.5
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_MainTex("Base (RGB)", 2D) = "white" { }
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[Toggle] _CastColor("ColorCast?", Float) = 0
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_ColourTex("ColourTex (RGB)", 2D) = "white" { }
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_CastColorR("CastColorR", Color) = (1,1,1,1)
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_CastColorG("CastColorG", Color) = (1,1,1,1)
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_CastColorB("CastColorB", Color) = (1,1,1,1)
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_CastColorA("CastColorA", Color) = (1,1,1,1)
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[Enum(UnityEngine.Rendering.CullMode)] _Cull("Cull Mode", Float) = 2
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}
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SubShader{
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Tags { "QUEUE" = "Geometry" "RenderType" = "Opaque" }
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LOD 200
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Cull[_Cull]
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Blend SrcAlpha OneMinusSrcAlpha
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Pass {
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#pragma target 2.0
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//#pragma multi_compile_fog
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#pragma multi_compile __ _CASTCOLOR_ON
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#include "UnityCG.cginc"
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struct v2f {
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float4 vertex : SV_POSITION;
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float2 texcoord : TEXCOORD0;
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//UNITY_FOG_COORDS(1)
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//UNITY_VERTEX_OUTPUT_STEREO
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};
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sampler2D _MainTex;
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half4 _MainTex_ST;
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half4 _Color;
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half _Bright;
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half _Cutoff;
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#ifdef _CASTCOLOR_ON
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sampler2D _ColourTex;
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//float4 _ColourTex_ST;
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half4 _CastColorR;
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half4 _CastColorG;
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half4 _CastColorB;
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half4 _CastColorA;
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#endif
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v2f vert(appdata_base v)
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{
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v2f o;
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UNITY_SETUP_INSTANCE_ID(v);
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//UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
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o.vertex = UnityObjectToClipPos(v.vertex);
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o.texcoord = TRANSFORM_TEX(v.texcoord, _MainTex);
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//UNITY_TRANSFER_FOG(o, o.vertex);
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return o;
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}
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half3 mix(half3 x, half3 y, half a)
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{
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return x * (1 - a) + y * a;
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}
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fixed4 frag(v2f i) : SV_Target
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{
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half4 main = tex2D(_MainTex, i.texcoord);
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clip(main.a - _Cutoff);
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half3 cc = main.rgb;
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#ifdef _CASTCOLOR_ON
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half4 mask = tex2D(_ColourTex, i.texcoord);
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half gray = Luminance(main.rgb);
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//half3 gray = main.rgb;
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cc = mix(cc.rgb, (_CastColorR.rgb*(gray*_CastColorR.a)), mask.r);
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cc = mix(cc.rgb, (_CastColorG.rgb*(gray*_CastColorG.a)), mask.g);
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cc = mix(cc.rgb, (_CastColorB.rgb*(gray*_CastColorB.a)), mask.b);
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cc = mix(cc.rgb, (_CastColorA.rgb*(gray*_CastColorA.a)), 1 - mask.a);
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#endif
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half4 col;
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col.rgb = cc * _Color.rgb * (1.0 + 0.25 * _Bright);
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col.a = main.a * _Color.a;
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//UNITY_APPLY_FOG(i.fogCoord, col);
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return col;
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}
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ENDCG
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}
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}
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Fallback "Unlit/Transparent Cutout"
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}
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