56 lines
882 B
Plaintext
56 lines
882 B
Plaintext
Shader "Hidden/Griffin/SteepnessMapGenerator"
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{
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Properties
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{
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_BumpMap ("Bump Map", 2D) = "bump" {}
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}
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CGINCLUDE
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#include "UnityCG.cginc"
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struct appdata
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{
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float4 vertex : POSITION;
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float2 uv : TEXCOORD0;
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};
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struct v2f
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{
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float2 uv : TEXCOORD0;
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float4 vertex : SV_POSITION;
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};
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sampler2D _BumpMap;
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v2f vert (appdata v)
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{
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v2f o;
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o.vertex = UnityObjectToClipPos(v.vertex);
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o.uv = v.uv;
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return o;
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}
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float4 frag (v2f i) : SV_Target
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{
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float4 col = tex2D(_BumpMap, i.uv);
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float3 normalY = col.g*2 - 1;
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float steepness = 1 - normalY;
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return float4(steepness, steepness, steepness, 1);
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}
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ENDCG
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SubShader
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{
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Tags { "RenderType"="Opaque" }
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Pass
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{
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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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}
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}
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