1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/**
* @file postDeferredGammaCorrect.glsl
*
* $LicenseInfo:firstyear=2007&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2007, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
/*[EXTRA_CODE_HERE]*/
out vec4 frag_color;
uniform sampler2D diffuseRect;
uniform float gamma = 2.2;
uniform float mpHDRBoost;
in vec2 vary_fragcoord;
vec3 clampHDRRange(vec3 color);
vec3 HDRDisplayGamma(vec3 linearRGB)
{
bvec3 cutoff = lessThan(linearRGB, vec3(0.0031308));
vec3 higher = vec3(1.055)*pow(linearRGB, vec3(1.0/gamma)) - vec3(0.055);
vec3 lower = linearRGB * vec3(12.92);
return mix(higher, lower, cutoff);
}
void main()
{
vec4 diff = texture(diffuseRect, vary_fragcoord);
diff.rgb = mpHDRBoost * HDRDisplayGamma(diff.rgb);
diff.rgb = clampHDRRange(diff.rgb);
frag_color = diff;
}
|
