58 lines
1.1 KiB
Plaintext
58 lines
1.1 KiB
Plaintext
|
// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
|
||
|
|
|
||
|
|
// Final pass in the contrast stretch effect: apply
|
||
|
|
// color stretch to the original image, based on currently
|
||
|
|
// adapted to minimum/maximum luminances.
|
||
|
|
|
||
|
|
Shader "Hidden/Contrast Stretch Apply" {
|
||
|
|
Properties {
|
||
|
|
_MainTex ("Base (RGB)", 2D) = "white" {}
|
||
|
|
_AdaptTex ("Base (RGB)", 2D) = "white" {}
|
||
|
|
}
|
||
|
|
|
||
|
|
Category {
|
||
|
|
SubShader {
|
||
|
|
Pass {
|
||
|
|
ZTest Always Cull Off ZWrite Off
|
||
|
|
|
||
|
|
CGPROGRAM
|
||
|
|
#pragma vertex vert
|
||
|
|
#pragma fragment frag
|
||
|
|
#include "UnityCG.cginc"
|
||
|
|
|
||
|
|
struct v2f {
|
||
|
|
float4 pos : SV_POSITION;
|
||
|
|
float2 uv[2] : TEXCOORD0;
|
||
|
|
};
|
||
|
|
|
||
|
|
uniform sampler2D _MainTex;
|
||
|
|
uniform sampler2D _AdaptTex;
|
||
|
|
|
||
|
|
v2f vert (appdata_img v)
|
||
|
|
{
|
||
|
|
v2f o;
|
||
|
|
o.pos = UnityObjectToClipPos (v.vertex);
|
||
|
|
o.uv[0] = MultiplyUV (UNITY_MATRIX_TEXTURE0, v.texcoord);
|
||
|
|
o.uv[1] = float2(0.5,0.5);
|
||
|
|
return o;
|
||
|
|
}
|
||
|
|
|
||
|
|
float4 frag (v2f i) : SV_Target
|
||
|
|
{
|
||
|
|
float4 col = tex2D(_MainTex, i.uv[0]);
|
||
|
|
float4 adapted = tex2D(_AdaptTex, i.uv[1]);
|
||
|
|
float vmul = 1.0 / adapted.z;
|
||
|
|
float vadd = -adapted.w;
|
||
|
|
col.rgb = col.rgb * vmul + vadd;
|
||
|
|
return col;
|
||
|
|
}
|
||
|
|
ENDCG
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Fallback off
|
||
|
|
|
||
|
|
}
|