mirror of
https://bitbucket.org/smil3y/katie.git
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126 lines
4.7 KiB
QML
126 lines
4.7 KiB
QML
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QML Shaders plugin of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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import QtQuick 1.0
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import Qt.labs.shaders 1.0
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Item {
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id: root
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property alias sourceItem: effectsource.sourceItem
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property real intensity: 1
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property bool waving: true
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anchors.top: sourceItem.bottom
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width: sourceItem.width
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height: sourceItem.height
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ShaderEffectItem {
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anchors.fill: parent
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property variant source: effectsource
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property real f: 0
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property real f2: 0
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property alias intensity: root.intensity
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smooth: true
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ShaderEffectSource {
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id: effectsource
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hideSource: false
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smooth: true
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}
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fragmentShader:
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"
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varying highp vec2 qt_TexCoord0;
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uniform sampler2D source;
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uniform lowp float qt_Opacity;
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uniform highp float f;
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uniform highp float f2;
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uniform highp float intensity;
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void main() {
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const highp float twopi = 3.141592653589 * 2.0;
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highp float distanceFactorToPhase = pow(qt_TexCoord0.y + 0.5, 8.0) * 5.0;
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highp float ofx = sin(f * twopi + distanceFactorToPhase) / 100.0;
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highp float ofy = sin(f2 * twopi + distanceFactorToPhase * qt_TexCoord0.x) / 60.0;
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highp float intensityDampingFactor = (qt_TexCoord0.x + 0.1) * (qt_TexCoord0.y + 0.2);
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highp float distanceFactor = (1.0 - qt_TexCoord0.y) * 4.0 * intensity * intensityDampingFactor;
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ofx *= distanceFactor;
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ofy *= distanceFactor;
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highp float x = qt_TexCoord0.x + ofx;
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highp float y = 1.0 - qt_TexCoord0.y + ofy;
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highp float fake = (sin((ofy + ofx) * twopi) + 0.5) * 0.05 * (1.2 - qt_TexCoord0.y) * intensity * intensityDampingFactor;
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highp vec4 pix =
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texture2D(source, vec2(x, y)) * 0.6 +
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texture2D(source, vec2(x-fake, y)) * 0.15 +
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texture2D(source, vec2(x, y-fake)) * 0.15 +
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texture2D(source, vec2(x+fake, y)) * 0.15 +
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texture2D(source, vec2(x, y+fake)) * 0.15;
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highp float darken = 0.6 - (ofx - ofy) / 2.0;
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pix.b *= 1.2 * darken;
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pix.r *= 0.9 * darken;
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pix.g *= darken;
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gl_FragColor = qt_Opacity * vec4(pix.r, pix.g, pix.b, 1.0);
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}
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"
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NumberAnimation on f {
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running: root.waving
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loops: Animation.Infinite
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from: 0
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to: 1
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duration: 2410
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}
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NumberAnimation on f2 {
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running: root.waving
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loops: Animation.Infinite
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from: 0
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to: 1
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duration: 1754
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}
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}
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}
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