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97 lines
2.0 KiB
97 lines
2.0 KiB
Shader "Fog Volume/RT viewers/RT_Depth"
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{
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Properties{
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[Toggle(RightEye)] _RightEye ("Right Eye?", Float) = 0
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[hideininspector]_MainTex("Base", 2D) = "" {}
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_Intensity("Intensity", Range(1, 20)) = 1
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}
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SubShader
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{
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Tags { "RenderType" = "Opaque" }
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LOD 100
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Pass
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{
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CGPROGRAM
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#pragma multi_compile _ _FOG_LOWRES_RENDERER
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#pragma vertex vert
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#pragma fragment frag
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#pragma multi_compile _ RightEye
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#include "UnityCG.cginc"
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float _Intensity;
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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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sampler2D RT_Depth, _MainTex;
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sampler2D RT_DepthR;
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float4 RT_Depth_ST, _MainTex_TexelSize, _MainTex_ST;
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sampler2D _CameraDepthTexture;
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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 = v.uv;
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return o;
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}
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fixed4 frag (v2f i) : SV_Target
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{
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// sample the texture
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float Depth = 0;
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#ifdef RightEye
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Depth = tex2D(RT_DepthR, i.uv).r;
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#else
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Depth = tex2D(RT_Depth, i.uv).r;
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#endif
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Depth *= 1000;
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return 1/Depth*_Intensity;
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//#if UNITY_REVERSED_Z!=1
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// return float4(1, 0, 0, 1);
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//#else
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// return float4(0, 1, 0, 1);
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//#endif
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//Depth = LinearEyeDepth(Depth);
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// Depth = 1.0 / (_ZBufferParams.z * Depth + _ZBufferParams.w);
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//Depth = max(.001, Depth);
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//
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//if (Depth < .0001)Depth = 1;
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//Depth /= _ProjectionParams.w;
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//Depth *= 1000;
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//https://docs.unity3d.com/Manual/SL-UnityShaderVariables.html
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//_ZBufferParams float4 Used to linearize Z buffer values. x is (1-far/near), y is (far/near), z is (x/far) and w is (y/far).
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half far = 1000;
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half near = .01;
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float x, y, z, w;
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x = 1 - far / near;
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y = far / near;
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z = x / far;
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w = y / far;
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//Depth = 1/ (z * Depth + w);
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//if (Depth < .0000001)Depth = 1000;
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return (1/Depth*_Intensity);
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//return DecodeFloatRGBA(z)*50;
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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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