FiE-Game/Assets/Standard Assets/Effects/ImageEffects/Shaders/SepiaToneEffect.shader

40 lines
737 B
Text
Raw Normal View History

2023-07-24 21:52:50 +02:00
Shader "Hidden/Sepiatone Effect" {
Properties {
_MainTex ("Base (RGB)", 2D) = "white" {}
}
SubShader {
Pass {
ZTest Always Cull Off ZWrite Off
CGPROGRAM
#pragma vertex vert_img
#pragma fragment frag
#include "UnityCG.cginc"
uniform sampler2D _MainTex;
half4 _MainTex_ST;
fixed4 frag (v2f_img i) : SV_Target
{
fixed4 original = tex2D(_MainTex, UnityStereoScreenSpaceUVAdjust(i.uv, _MainTex_ST));
// get intensity value (Y part of YIQ color space)
fixed Y = dot (fixed3(0.299, 0.587, 0.114), original.rgb);
// Convert to Sepia Tone by adding constant
fixed4 sepiaConvert = float4 (0.191, -0.054, -0.221, 0.0);
fixed4 output = sepiaConvert + Y;
output.a = original.a;
return output;
}
ENDCG
}
}
Fallback off
}