123 lines
3.4 KiB
Plaintext
123 lines
3.4 KiB
Plaintext
Shader "Hidden/EfficientBlur"
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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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_BackgroundColor ("_BackgroundColor", Color) = (0,0,0,0)
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}
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CGINCLUDE
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#include "UnityCG.cginc"
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#include "lib.cginc"
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UNITY_DECLARE_SCREENSPACE_TEXTURE(_MainTex);
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float4 _MainTex_TexelSize;
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uniform half _Radius;
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BlurVertexOutput vert(appdata_img v)
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{
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BlurVertexOutput o;
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UNITY_SETUP_INSTANCE_ID(v);
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UNITY_INITIALIZE_OUTPUT(BlurVertexOutput, 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.texcoord = GetGatherTexcoord(v.texcoord, _MainTex_TexelSize, _Radius);
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return o;
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}
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ENDCG
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SubShader
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{
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Cull Off ZWrite Off ZTest Always Blend Off
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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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half4 frag(BlurVertexOutput i) : SV_Target
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i)
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half4 o = GATHER(_MainTex, i.texcoord);
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return o;
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}
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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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//Crop before blur
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#pragma vertex vertCrop
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#pragma fragment frag
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#pragma multi_compile_local BACKGROUND_FILL_NONE BACKGROUND_FILL_COLOR
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float4 _CropRegion;
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half3 _BackgroundColor;
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BlurVertexOutput vertCrop(appdata_img v)
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{
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BlurVertexOutput o = vert(v);
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o.texcoord.xy = getNewUV(o.texcoord.xy, _CropRegion);
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o.texcoord.zw = getNewUV(o.texcoord.zw, _CropRegion);
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return o;
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}
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half4 frag(BlurVertexOutput i) : SV_Target
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
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half4 o = GATHER(_MainTex, i.texcoord);
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#if BACKGROUND_FILL_COLOR
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o.rgb = lerp(_BackgroundColor, o.rgb, o.a);
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o.a = 1.0h;
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#endif
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return o;
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}
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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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//
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// o.viewDir = mul(unity_CameraInvProjection, o.vertex).xyz;
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// #if UNITY_UV_STARTS_AT_TOP
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// o.viewDir.y = -o.viewDir.y;
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// #endif
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// o.viewDir.z = -o.viewDir.z;
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// o.viewDir = mul(unity_CameraToWorld, o.viewDir.xyzz).xyz;
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// return o;
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// }
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//
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// samplerCUBE _EnvTex;
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// float4 _EnvTex_HDR;
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//
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// half4 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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// half4 col = SAMPLE_SCREEN_TEX(_MainTex, i.uv);
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// half4 envData = texCUBE(_EnvTex, normalize(i.viewDir));
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// half3 env = DecodeHDR(envData, _EnvTex_HDR);
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// col.rgb *= col.a;
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// col.rgb = col.rgb + env * (1 - col.a);
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// col.a = 1;
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// return col;
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// }
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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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