Shader "Hidden/Post FX/Monitors/Waveform Render"
|
{
|
SubShader
|
{
|
ZTest Always Cull Off ZWrite Off
|
Fog { Mode off }
|
|
CGINCLUDE
|
|
#pragma fragmentoption ARB_precision_hint_fastest
|
#pragma target 5.0
|
#include "UnityCG.cginc"
|
|
StructuredBuffer<uint4> _Waveform;
|
float2 _Size;
|
float4 _Channels;
|
float _Exposure;
|
|
float3 Tonemap(float3 x, float exposure)
|
{
|
const float a = 6.2;
|
const float b = 0.5;
|
const float c = 1.7;
|
const float d = 0.06;
|
x *= exposure;
|
x = max((0.0).xxx, x - (0.004).xxx);
|
x = (x * (a * x + b)) / (x * (a * x + c) + d);
|
return x * x;
|
}
|
|
float4 FragWaveform(v2f_img i) : SV_Target
|
{
|
const float3 red = float3(1.4, 0.03, 0.02);
|
const float3 green = float3(0.02, 1.1, 0.05);
|
const float3 blue = float3(0.0, 0.25, 1.5);
|
float3 color = float3(0.0, 0.0, 0.0);
|
|
uint2 uvI = i.pos.xy;
|
float4 w = _Waveform[uvI.y + uvI.x * _Size.y]; // Waveform data is stored in columns instead of rows
|
|
color += red * w.r * _Channels.r;
|
color += green * w.g * _Channels.g;
|
color += blue * w.b * _Channels.b;
|
color += w.aaa * _Channels.a * 1.5;
|
color = Tonemap(color, _Exposure);
|
color += (0.1).xxx;
|
|
return float4(saturate(color), 1.0);
|
}
|
|
ENDCG
|
|
// (0)
|
Pass
|
{
|
CGPROGRAM
|
|
#pragma vertex vert_img
|
#pragma fragment FragWaveform
|
|
ENDCG
|
}
|
}
|
FallBack off
|
}
|
