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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.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-import QtQuick 2.0
-
-Effect {
- id: root
- parameters: ListModel {
- ListElement {
- name: "amplitude"
- value: 0.5
- }
- }
-
- // Transform slider values, and bind result to shader uniforms
- property real granularity: parameters.get(0).value * 20
- property real weight: parameters.get(0).value
-
- property real centerX
- property real centerY
- property real time
-
- SequentialAnimation {
- running: true
- loops: Animation.Infinite
- ScriptAction {
- script: {
- centerX = Math.random()
- centerY = Math.random()
- }
- }
- NumberAnimation {
- target: root
- property: "time"
- from: 0
- to: 1
- duration: 1000
- }
- }
-
- fragmentShaderSrc: "uniform float centerX;
- uniform float centerY;
- uniform float dividerValue;
- uniform float granularity;
- uniform float time;
- uniform float weight;
-
- uniform sampler2D source;
- uniform lowp float qt_Opacity;
- varying vec2 qt_TexCoord0;
-
- void main()
- {
- vec2 uv = qt_TexCoord0.xy;
- vec2 tc = qt_TexCoord0;
- vec2 center = vec2(centerX, centerY);
- const vec3 shock = vec3(10.0, 1.5, 0.1);
- if (uv.x < dividerValue) {
- float distance = distance(uv, center);
- if ((distance <= (time + shock.z)) &&
- (distance >= (time - shock.z))) {
- float diff = (distance - time);
- float powDiff = 1.0 - pow(abs(diff*shock.x), shock.y*weight);
- float diffTime = diff * powDiff;
- vec2 diffUV = normalize(uv - center);
- tc += (diffUV * diffTime);
- }
- }
- gl_FragColor = qt_Opacity * texture2D(source, tc);
- }"
-}