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 avatarAlphaShadowF.glsl
*
* $LicenseInfo:firstyear=2005&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2005, 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
* $/LicenseInfo$
*/
out vec4 frag_color;
uniform float minimum_alpha;
uniform sampler2D diffuseMap;
in float pos_w;
in float target_pos_x;
in vec2 vary_texcoord0;
uniform vec4 color;
void main()
{
float alpha = texture(diffuseMap, vary_texcoord0.xy).a * color.a;
if (alpha < 0.05) // treat as totally transparent
{
discard;
}
if (alpha < minimum_alpha) // treat as semi-transparent
{
if (fract(0.5*floor(target_pos_x / pos_w )) < 0.25)
{
discard;
}
}
frag_color = vec4(1,1,1,1);
}
|
