You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
164 lines
6.1 KiB
164 lines
6.1 KiB
// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
|
|
|
|
Shader "Hidden/DepthOfField/MedianFilter"
|
|
{
|
|
Properties
|
|
{
|
|
_MainTex ("-", 2D) = "black"
|
|
}
|
|
|
|
CGINCLUDE
|
|
|
|
#pragma target 3.0
|
|
#pragma fragmentoption ARB_precision_hint_fastest
|
|
#include "UnityCG.cginc"
|
|
|
|
sampler2D _MainTex;
|
|
uniform half4 _MainTex_TexelSize;
|
|
uniform half4 _MainTex_ST;
|
|
uniform float4 _Offsets;
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Verter Shaders and declaration
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
struct v2f
|
|
{
|
|
half4 pos : SV_POSITION;
|
|
half2 uv : TEXCOORD0;
|
|
};
|
|
|
|
v2f vert(appdata_img v)
|
|
{
|
|
v2f o;
|
|
o.pos = UnityObjectToClipPos(v.vertex);
|
|
o.uv = v.texcoord.xy;
|
|
|
|
#if UNITY_UV_STARTS_AT_TOP
|
|
if (_MainTex_TexelSize.y < 0.0)
|
|
o.uv.y = 1.0 - o.uv.y;
|
|
#endif
|
|
|
|
return o;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
float4 fragCocMedian3 (v2f i) : SV_Target
|
|
{
|
|
// TODO: Use med3 on GCN architecture.
|
|
half4 A = tex2Dlod(_MainTex, half4(i.uv, 0.0, 0.0));
|
|
half3 B = tex2Dlod(_MainTex, half4(i.uv + _Offsets.xy * _MainTex_TexelSize.xy, 0.0, 0.0)).rgb;
|
|
half3 C = tex2Dlod(_MainTex, half4(i.uv - _Offsets.xy * _MainTex_TexelSize.xy, 0.0, 0.0)).rgb;
|
|
|
|
half3 minAB = min(A.rgb,B);
|
|
half3 maxAB = max(A.rgb,B);
|
|
half3 temp = min(C, maxAB);
|
|
half3 median = max(minAB, temp);
|
|
|
|
return half4(lerp(A.rgb, median, A.a * A.a), A.a);
|
|
}
|
|
|
|
/*/////////////////////////////////////////////////////////////////////////////
|
|
3x3 Median
|
|
Morgan McGuire and Kyle Whitson
|
|
http://graphics.cs.williams.edu
|
|
|
|
Copyright (c) Morgan McGuire and Williams College, 2006
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are
|
|
met:
|
|
|
|
Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
|
|
Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
#define s2(a, b) temp = a; a = min(a, b); b = max(temp, b);
|
|
#define mn3(a, b, c) s2(a, b); s2(a, c);
|
|
#define mx3(a, b, c) s2(b, c); s2(a, c);
|
|
#define mnmx3(a, b, c) mx3(a, b, c); s2(a, b);
|
|
#define mnmx4(a, b, c, d) s2(a, b); s2(c, d); s2(a, c); s2(b, d);
|
|
#define mnmx5(a, b, c, d, e) s2(a, b); s2(c, d); mn3(a, c, e); mx3(b, d, e);
|
|
#define mnmx6(a, b, c, d, e, f) s2(a, d); s2(b, e); s2(c, f); mn3(a, b, c); mx3(d, e, f);
|
|
|
|
float4 fragCocMedian3x3 (v2f i) : SV_Target
|
|
{
|
|
half4 center = tex2Dlod(_MainTex, half4(i.uv + half2(0, 0) * _MainTex_TexelSize.xy,0,0));
|
|
|
|
half3 v[9];
|
|
// Add the pixels which make up our window to the pixel array.
|
|
v[0] = tex2Dlod(_MainTex, half4(i.uv + half2(-1, -1) * _MainTex_TexelSize.xy, 0, 0)).rgb;
|
|
v[1] = tex2Dlod(_MainTex, half4(i.uv + half2(-1, 0) * _MainTex_TexelSize.xy, 0, 0)).rgb;
|
|
v[2] = tex2Dlod(_MainTex, half4(i.uv + half2(-1, 1) * _MainTex_TexelSize.xy, 0, 0)).rgb;
|
|
v[3] = tex2Dlod(_MainTex, half4(i.uv + half2( 0, -1) * _MainTex_TexelSize.xy, 0, 0)).rgb;
|
|
v[4] = center.rgb;
|
|
v[5] = tex2Dlod(_MainTex, half4(i.uv + half2( 0, 1) * _MainTex_TexelSize.xy, 0, 0)).rgb;
|
|
v[6] = tex2Dlod(_MainTex, half4(i.uv + half2( 1, -1) * _MainTex_TexelSize.xy, 0, 0)).rgb;
|
|
v[7] = tex2Dlod(_MainTex, half4(i.uv + half2( 1, 0) * _MainTex_TexelSize.xy, 0, 0)).rgb;
|
|
v[8] = tex2Dlod(_MainTex, half4(i.uv + half2( 1, 1) * _MainTex_TexelSize.xy, 0, 0)).rgb;
|
|
|
|
half3 temp;
|
|
// TODO: use med3 on GCN architecture.
|
|
// Starting with a subset of size 6, remove the min and max each time
|
|
mnmx6(v[0], v[1], v[2], v[3], v[4], v[5]);
|
|
mnmx5(v[1], v[2], v[3], v[4], v[6]);
|
|
mnmx4(v[2], v[3], v[4], v[7]);
|
|
mnmx3(v[3], v[4], v[8]);
|
|
|
|
return half4(lerp(center.rgb, v[4], center.a*center.a), center.a);
|
|
}
|
|
|
|
#undef s2
|
|
#undef mn3
|
|
#undef mx3
|
|
#undef mnmx3
|
|
#undef mnmx4
|
|
#undef mnmx5
|
|
#undef mnmx6
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
ENDCG
|
|
|
|
SubShader
|
|
{
|
|
ZTest Always Cull Off ZWrite Off Fog { Mode Off } Lighting Off Blend Off
|
|
|
|
// 0
|
|
Pass
|
|
{
|
|
CGPROGRAM
|
|
#pragma vertex vert
|
|
#pragma fragment fragCocMedian3
|
|
ENDCG
|
|
}
|
|
|
|
// 1
|
|
Pass
|
|
{
|
|
CGPROGRAM
|
|
#pragma vertex vert
|
|
#pragma fragment fragCocMedian3x3
|
|
ENDCG
|
|
}
|
|
}
|
|
|
|
FallBack Off
|
|
}
|