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// Colorful FX - Unity Asset
// Copyright (c) 2015 - Thomas Hourdel
// http://www.thomashourdel.com
Shader "Hidden/Colorful/Channel Clamper"
{
Properties
{
_MainTex ("Base (RGB)", 2D) = "white" {}
_RedClamp ("Red Clamp (XY)", Vector) = (0.0, 1.0, 0.0, 0.0)
_GreenClamp ("Green Clamp (XY)", Vector) = (0.0, 1.0, 0.0, 0.0)
_BlueClamp ("Blue Clamp (XY)", Vector) = (0.0, 1.0, 0.0, 0.0)
}
SubShader
{
Pass
{
ZTest Always Cull Off ZWrite Off
Fog { Mode off }
CGPROGRAM
#pragma vertex vert_img
#pragma fragment frag
#pragma fragmentoption ARB_precision_hint_fastest
#include "UnityCG.cginc"
sampler2D _MainTex;
half2 _RedClamp;
half2 _GreenClamp;
half2 _BlueClamp;
half4 frag(v2f_img i) : SV_Target
{
half3 color = tex2D(_MainTex, i.uv).rgb;
color.r = clamp(color.r, _RedClamp.x, _RedClamp.y);
color.g = clamp(color.g, _GreenClamp.x, _GreenClamp.y);
color.b = clamp(color.b, _BlueClamp.x, _BlueClamp.y);
return half4(color, 1.0);
}
ENDCG
}
}
FallBack off
}