106 lines
2.1 KiB
Text
106 lines
2.1 KiB
Text
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//======= Copyright (c) Stereolabs Corporation, All rights reserved. ===============
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//Set noises and min black
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Shader "ZED/ZED Post-Processing" {
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Properties
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{
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_MainTex("Texture", 2D) = "white" {}
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_MinBlack("Min black threshold", Range(0,1)) = 0.01
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}
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SubShader
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{
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Tags{ "RenderType" = "Opaque" }
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ZWrite Off
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ZTest Always
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Cull 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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#include "UnityCG.cginc"
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#pragma multi_compile ___ UNITY_HDR_ON
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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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uniform sampler2D _MainTex;
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float4 _MainTex_ST;
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float4 _MainTex_TexelSize;
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sampler2D ZEDMaskPostProcess;
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uniform float _gamma;
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uniform float _MinBlack;
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uniform int _NoiseSize;
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float rand(float2 co) {
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return frac(sin(dot(co.xy, float2(12.9898, 78.233))) * 43758.5453);
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}
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//Vertex Shader
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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 = TRANSFORM_TEX(v.uv, _MainTex);
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return o;
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}
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//Fragment Shader
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float4 frag(v2f i) : SV_Target{
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float2 invertUV = i.uv;
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invertUV.y = 1 - i.uv.y;
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float mask = tex2D(ZEDMaskPostProcess, i.uv);
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float4 zed = tex2D(_MainTex, i.uv);
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if (mask > 0.9f)
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{
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//zed = (zed * 0.187) / (1.035 - zed);
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float SqrtPixel = sqrt(zed.r * zed.r + zed.g * zed.g + zed.b * zed.b);
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float3 NoiseFactors = 2;
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float2 random = _Time.x*_NoiseSize*floor(i.uv / _MainTex_TexelSize.xy / _NoiseSize) / 3.;
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float3 NoiseValue = float3(rand(random),
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rand(random),
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rand(random));
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float4 res = pow(zed, _gamma);
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res.r += (NoiseFactors.r * NoiseValue.r - NoiseFactors.r * 0.5) / 255;
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res.g += (NoiseFactors.g * NoiseValue.g - NoiseFactors.g * 0.5) / 255;
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res.b += (NoiseFactors.b * NoiseValue.b - NoiseFactors.b * 0.5) / 255;
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//res = res / (res + 0.187) * 1.035;
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res.a = 1.0f;
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//res *= mask;
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#if UNITY_COLORSPACE_GAMMA
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return clamp(res, _MinBlack, 1.0f);
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#else
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return clamp(res, GammaToLinearSpaceExact(_MinBlack), 1.0f);
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#endif
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}
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return zed;
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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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