78 lines
2.1 KiB
Plaintext
78 lines
2.1 KiB
Plaintext
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Shader "VR/TunnelingVignette"
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{
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Properties
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{
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_ApertureSize("Aperture Size", Range(0, 1)) = 0.7
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_FeatheringEffect("Feathering Effect", Range(0, 1)) = 0.2
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_VignetteColor("Vignette Color", Color) = (0, 0, 0, 1)
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_VignetteColorBlend("Vignette Color Blend", Color) = (0, 0, 0, 1)
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}
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SubShader
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{
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Tags { "Queue" = "Transparent+5" "IgnoreProjector" = "True" "RenderType" = "Transparent" }
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LOD 100
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Pass
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{
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Blend SrcAlpha OneMinusSrcAlpha
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ZTest Always
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ZWrite Off
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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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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UNITY_VERTEX_INPUT_INSTANCE_ID
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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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UNITY_VERTEX_OUTPUT_STEREO
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};
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float4 _VignetteColor;
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float4 _VignetteColorBlend;
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float _ApertureSize;
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float _FeatheringEffect;
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v2f vert(appdata v)
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{
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v2f o;
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UNITY_SETUP_INSTANCE_ID(v);
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UNITY_INITIALIZE_OUTPUT(v2f, o);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(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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UNITY_DECLARE_SCREENSPACE_TEXTURE(_MainTex);
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fixed4 frag(v2f i) : SV_Target
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
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float uvY = i.uv.y;
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float alphaMin = (0.5 - sqrt(0.25 - ((_ApertureSize * _ApertureSize) * 0.25)));
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float alpha = saturate(((uvY - alphaMin) / (_FeatheringEffect * _FeatheringEffect + 0.0001)));
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fixed4 color = lerp(_VignetteColor, _VignetteColorBlend, uvY * 2);
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color.w *= alpha;
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return color;
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}
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ENDCG
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}
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}
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}
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