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.
38 lines
791 B
38 lines
791 B
Shader "Hidden/HSVToRGBNode"
|
|
{
|
|
Properties
|
|
{
|
|
_A ( "_Hue", 2D ) = "white" {}
|
|
_B ( "_Saturation", 2D ) = "white" {}
|
|
_C ( "_Value", 2D ) = "white" {}
|
|
}
|
|
|
|
SubShader
|
|
{
|
|
Pass
|
|
{
|
|
CGPROGRAM
|
|
#include "UnityCG.cginc"
|
|
#pragma vertex vert_img
|
|
#pragma fragment frag
|
|
|
|
uniform sampler2D _A;
|
|
uniform sampler2D _B;
|
|
uniform sampler2D _C;
|
|
|
|
float4 frag ( v2f_img i ) : SV_Target
|
|
{
|
|
float h = tex2D ( _A, i.uv ).r;
|
|
float s = tex2D ( _B, i.uv ).r;
|
|
float v = tex2D ( _C, i.uv ).r;
|
|
|
|
float4 K = float4( 1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0 );
|
|
float3 p = abs ( frac ( (h).xxx + K.xyz ) * 6.0 - K.www );
|
|
float3 hsvToRgb = v * lerp ( K.xxx, clamp ( p - K.xxx, 0.0, 1.0 ), (s).xxx );
|
|
|
|
return float4( GammaToLinearSpace(hsvToRgb), 1 );
|
|
}
|
|
ENDCG
|
|
}
|
|
}
|
|
}
|