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
|
/**
* @file objectSkinV.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
* $/LicenseInfo$
*/
ATTRIBUTE vec4 weight4;
uniform mat4 matrixPalette[32];
mat4 getObjectSkinnedTransform()
{
int i;
vec4 w = fract(weight4);
vec4 index = floor(weight4);
index = min(index, vec4(31.0));
index = max(index, vec4( 0.0));
float scale = 1.0/(w.x+w.y+w.z+w.w);
w *= scale;
mat4 mat = matrixPalette[int(index.x)]*w.x;
mat += matrixPalette[int(index.y)]*w.y;
mat += matrixPalette[int(index.z)]*w.z;
mat += matrixPalette[int(index.w)]*w.w;
return mat;
}
|
