diff options
author | Gareth Stockwell <gareth.stockwell@accenture.com> | 2011-12-14 15:00:36 +0000 |
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committer | Gareth Stockwell <ext-gareth.stockwell@nokia.com> | 2011-12-14 15:36:06 +0000 |
commit | 2e8f3ffb805f071107eb99949a6c21ce52ac40a0 (patch) | |
tree | 6e33873ae0d3b1dfef85c819a4f874c1b54f39ab /demos/video/qmlvideofx/shaders/shockwave.fsh | |
parent | ca0fa90277e65cff44262315ea1bd0f6594aa915 (diff) |
Moved shader programs in qmlvideofx demo into separate files
Moving shader programs into .glsl files means that QtCreator can
apply syntax highlighting and autocompletion.
Reviewed-by: TrustMe
Diffstat (limited to 'demos/video/qmlvideofx/shaders/shockwave.fsh')
-rw-r--r-- | demos/video/qmlvideofx/shaders/shockwave.fsh | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/demos/video/qmlvideofx/shaders/shockwave.fsh b/demos/video/qmlvideofx/shaders/shockwave.fsh new file mode 100644 index 0000000000..33c382657d --- /dev/null +++ b/demos/video/qmlvideofx/shaders/shockwave.fsh @@ -0,0 +1,73 @@ +/**************************************************************************** +** +** 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://www.geeks3d.com/20091116/shader-library-2d-shockwave-post-processing-filter-glsl/ + +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); +} |