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-/****************************************************************************
-**
-** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the Qt Mobility Components.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-// Based on http://labs.qt.nokia.com/2011/03/22/the-convenient-power-of-qml-scene-graph/
-
-uniform float dividerValue;
-uniform float targetWidth;
-uniform float targetHeight;
-uniform float time;
-
-uniform sampler2D source;
-uniform lowp float qt_Opacity;
-varying vec2 qt_TexCoord0;
-
-const float PI = 3.1415926535;
-const int ITER = 7;
-const float RATE = 0.1;
-uniform float amplitude;
-uniform float n;
-
-void main()
-{
- vec2 uv = qt_TexCoord0.xy;
- vec2 tc = uv;
- vec2 p = vec2(-1.0 + 2.0 * gl_FragCoord.x / targetWidth, -(-1.0 + 2.0 * gl_FragCoord.y / targetHeight));
- float diffx = 0.0;
- float diffy = 0.0;
- vec4 col;
- if (uv.x < dividerValue) {
- for (int i=0; i<ITER; ++i) {
- float theta = float(i) * PI / float(ITER);
- vec2 r = vec2(cos(theta) * p.x + sin(theta) * p.y, -1.0 * sin(theta) * p.x + cos(theta) * p.y);
- float diff = (sin(2.0 * PI * n * (r.y + time * RATE)) + 1.0) / 2.0;
- diffx += diff * sin(theta);
- diffy += diff * cos(theta);
- }
- tc = 0.5*(vec2(1.0,1.0) + p) + amplitude * vec2(diffx, diffy);
- }
- gl_FragColor = qt_Opacity * texture2D(source, tc);
-}