Pencil2D Animation
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  • core_lib
  • src
  • util
painterutils.h
1/*
2
3Pencil2D - Traditional Animation Software
4Copyright (C) 2005-2007 Patrick Corrieri & Pascal Naidon
5Copyright (C) 2012-2020 Matthew Chiawen Chang
6
7This program is free software; you can redistribute it and/or
8modify it under the terms of the GNU General Public License
9as published by the Free Software Foundation; version 2 of the License.
10
11This program is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16*/
17
18#ifndef PAINTERUTILS_H
19#define PAINTERUTILS_H
20
21#include <QtMath>
22
24inline qreal calculateRelativeOpacityForLayer(int currentLayerIndex, int layerIndexNext, float threshold)
25{
26 int layerOffset = currentLayerIndex - layerIndexNext;
27 int absoluteOffset = qAbs(layerOffset);
28 qreal newOpacity = 1.0;
29 if (absoluteOffset != 0)
30 {
31 newOpacity = qPow(static_cast<qreal>(threshold), absoluteOffset);
32 }
33 return newOpacity;
34};
35
36#endif // PAINTERUTILS_H
Generated on Thu May 8 2025 04:47:53 for Pencil2D by doxygen 1.9.6 based on revision 4513250b1d5b1a3676ec0e67b06b7a885ceaae39