diff options
Diffstat (limited to 'demos/video/qmlvideofx/shaders/wobble.fsh')
-rw-r--r-- | demos/video/qmlvideofx/shaders/wobble.fsh | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/demos/video/qmlvideofx/shaders/wobble.fsh b/demos/video/qmlvideofx/shaders/wobble.fsh new file mode 100644 index 0000000000..5a8771d216 --- /dev/null +++ b/demos/video/qmlvideofx/shaders/wobble.fsh @@ -0,0 +1,62 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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, Nokia gives you certain additional +** rights. These rights are described in the Nokia 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. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// Based on http://labs.qt.nokia.com/2011/03/22/the-convenient-power-of-qml-scene-graph/ + +uniform float amplitude; +uniform float dividerValue; +uniform float frequency; +uniform float time; + +uniform sampler2D source; +uniform lowp float qt_Opacity; +varying vec2 qt_TexCoord0; + +void main() +{ + vec2 uv = qt_TexCoord0.xy; + vec2 tc = qt_TexCoord0; + if (uv.x < dividerValue) { + vec2 p = sin(time + frequency * qt_TexCoord0); + tc += amplitude * vec2(p.y, -p.x); + } + gl_FragColor = qt_Opacity * texture2D(source, tc); +} |