82 lines
1.4 KiB
Plaintext
82 lines
1.4 KiB
Plaintext
Shader "Hidden/Griffin/HeightmapConverterEncodeRG"
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{
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Properties
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{
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_MainTex("Texture", 2D) = "white" {}
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}
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SubShader
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{
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Tags { "RenderType" = "Opaque" }
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LOD 100
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CGINCLUDE
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#include "UtilitiesCommon.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 _MainTex;
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float4 _MainTex_ST;
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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 frag0(v2f i) : SV_Target
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{
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float4 data = tex2D(_MainTex, i.uv);
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float height = data.r;
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float subdiv = data.g;
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float visibility = data.a;
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height = max(0, min(0.999999, height));
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float2 encodedHeight = GriffinEncodeFloatRG(height);
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return float4(encodedHeight.xy, subdiv, visibility);
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}
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float4 frag1(v2f i) : SV_Target
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{
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float4 data = tex2D(_MainTex, i.uv);
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float height = data.r;
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height = max(0, min(0.999999, height));
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float2 encodedHeight = GriffinEncodeFloatRG(height);
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return float4(encodedHeight.xy, 0, 0);
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}
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ENDCG
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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 frag0
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ENDCG
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}
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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 frag1
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ENDCG
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}
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}
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}
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