106 lines
1.9 KiB
Plaintext
106 lines
1.9 KiB
Plaintext
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Shader "MY/SkinBake"
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{
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Properties
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{
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_MainTex("Base (RGB)", 2D) = "white" {}
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_CurveFactor("CurveFactor",Range(0,5)) = 1
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}
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CGINCLUDE
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#include "UnityCG.cginc"
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sampler2D _MainTex;
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half4 _MainTex_TexSize;
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half4 _MainTex_ST;
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uniform half _CurveFactor;
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// weight curves
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static const half weight[5][5] = { {0.0030,0.0133,0.0219,0.0133,0.0030},
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{0.0133,0.0596,0.0983,0.0596,0.0133},
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{0.0219,0.0983,0.1621,0.0983,0.0219},
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{0.0133,0.0596,0.0983,0.0596,0.0133},
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{0.0030,0.0133,0.0219,0.0133,0.0030} };
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struct v2f
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{
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float4 pos : SV_POSITION;
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half2 uv : TEXCOORD0;
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float3 vertex : TEXCOORD1;
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float3 normal : TEXCOORD2;
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};
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struct v2f_out
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{
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float4 pos : SV_POSITION;
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half2 uv : TEXCOORD0;
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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.uv = fmod(v.texcoord.xy, 1);
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o.pos = float4(o.uv * 2 - 1, 0, 1);
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o.pos.y = -o.pos.y;
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o.vertex = v.vertex.xyz;
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o.normal = v.normal;
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return o;
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}
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fixed4 frag(v2f i) : SV_Target
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{
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float3 worldPos = i.vertex;
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float3 worldBump = normalize(i.normal);
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float cuv = length(fwidth(worldBump)) / length(fwidth(worldPos)) / 10000 * _CurveFactor;
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return fixed4(cuv,cuv,cuv,1);
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}
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v2f_out vertBlur(appdata_img v)
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{
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v2f_out o;
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o.pos = UnityObjectToClipPos(v.vertex);
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o.uv = v.texcoord.xy;
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return o;
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}
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fixed4 fragBlur(v2f_out In) : SV_Target
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{
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float result = 0;
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for (int i = 0;i < 5;i++)
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{
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for (int j = 0;j < 5;j++)
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{
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half2 newUv = In.uv + float2(i - 2,j - 2) * _MainTex_TexSize.xy * 2;
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result += tex2D(_MainTex, newUv).r * weight[i][j];
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}
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}
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return fixed4(result,result,result,1);
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}
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ENDCG
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SubShader
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{
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ZTest Off Cull Off ZWrite Off Blend Off
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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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ENDCG
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}
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Pass{
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CGPROGRAM
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#pragma vertex vertBlur
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#pragma fragment fragBlur
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ENDCG
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}
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}
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FallBack Off
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}
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