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Shader "Custom/Character"
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{
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Properties
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{
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_Color ("Color", Color) = (1,1,1,1)
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[PerRendererData]_MainTex ("Sprite Texture", 2D) = "white" {}
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_Flash ("Flash", Range(0,1)) = 0.5
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_FlashColor ("FlashColor", Color) = (1,1,1,1)
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_Alpha ("_Alpha", Range(0,1)) = 1
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_PaletteTex ("PaletteTex", 2D) = "white" {}
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_ReplaceTex ("ReplaceTex", 2D) = "white" {}
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[IntRange]_ReplaceType ("ReplaceType", Range(0,15)) = 0
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_Direction ("Direction", Vector) = (0, 1, 0, 0)
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_Intensity ("Intensity", Range(0.0, 1.0)) = 0
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_UV ("UV", Vector) = (0, 0, 0, 0)//uv中心xy，uv边界
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}
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SubShader
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{
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Tags
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{
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"Queue" = "Geometry"
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}
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Cull Off
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ZWrite On
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CGPROGRAM
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#pragma surface surf Lambert addshadow fullforwardshadows
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#pragma target 3.0
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sampler2D _MainTex;
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sampler2D _PaletteTex;
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sampler2D _ReplaceTex;
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fixed4 _Color;
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fixed _Flash;
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fixed4 _FlashColor;
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fixed _Alpha;
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fixed _ReplaceType;
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fixed4 _Direction;
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fixed _Intensity;
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fixed4 _UV;
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struct Input
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{
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float2 uv_MainTex;
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};
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void surf(Input IN, inout SurfaceOutput o)
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{
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fixed2 uv = IN.uv_MainTex;
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//形变
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if (length(_Direction) > 0 && _Intensity > 0)
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{
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fixed2 dir_center = IN.uv_MainTex - _UV.xy;
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fixed2 dir = normalize(_Direction.xy);
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fixed2 dir1 = dir.xy * _Intensity;
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fixed2 dir2 = cross(fixed3(0, 0, 1), fixed3(dir, 0)).xy * _Intensity;
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fixed2 offset1 = -dot(dir1, dir_center) * dir1;
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fixed2 offset2 = dot(dir2, dir_center) * dir2;
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uv = IN.uv_MainTex + offset1 + offset2;
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}
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//如果采样超出sprite范围 丢弃
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fixed4 bound = fixed4(_UV.x - _UV.z, _UV.x + _UV.z, _UV.y - _UV.w, _UV.y + _UV.w);
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if (uv.x < bound.x || uv.x > bound.y || uv.y < bound.z || uv.y > bound.w)
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{
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discard;
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}
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//采样
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fixed4 c = tex2D(_MainTex, uv);
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//颜色替换
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fixed4 paletteColor = tex2D(_PaletteTex, c.br);
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fixed4 replaceColor = tex2D(_ReplaceTex, fixed2(paletteColor.r, 1 - 0.01 - _ReplaceType * 0.0625));
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if (any(replaceColor.rgb == fixed3(0, 0, 0)))
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{
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replaceColor = tex2D(_ReplaceTex, fixed2(paletteColor.r, 1 - 0.01));
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}
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fixed3 rgb = replaceColor.rgb;
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//闪光
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if (_Flash > 0)
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{
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rgb = rgb * (_Flash + 1) * _FlashColor;
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}
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o.Albedo = rgb * _Color;
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o.Alpha = _Alpha * c.a;
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clip(o.Alpha - 0.5);
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}
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ENDCG
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}
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FallBack "Diffuse"
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} |