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62 lines
1.1 KiB
Plaintext
62 lines
1.1 KiB
Plaintext
2 months ago
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// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
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Shader "Hidden/FisheyeShader" {
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Properties {
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_MainTex ("Base (RGB)", 2D) = "" {}
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}
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// Shader code pasted into all further CGPROGRAM blocks
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CGINCLUDE
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#include "UnityCG.cginc"
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struct v2f {
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float4 pos : POSITION;
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float2 uv : TEXCOORD0;
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};
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sampler2D _MainTex;
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float2 intensity;
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v2f vert( appdata_img v )
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{
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v2f 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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half4 frag(v2f i) : COLOR
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{
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half2 coords = i.uv;
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coords = (coords - 0.5) * 2.0;
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half2 realCoordOffs;
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realCoordOffs.x = (1-coords.y * coords.y) * intensity.y * (coords.x);
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realCoordOffs.y = (1-coords.x * coords.x) * intensity.x * (coords.y);
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half4 color = tex2D (_MainTex, i.uv - realCoordOffs);
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return color;
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}
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ENDCG
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Subshader {
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Pass {
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ZTest Always Cull Off ZWrite Off
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Fog { Mode off }
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CGPROGRAM
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#pragma fragmentoption ARB_precision_hint_fastest
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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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Fallback off
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} // shader
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