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author | Jyri Tahtela <jyri.tahtela@nokia.com> | 2011-06-27 08:47:01 (GMT) |
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committer | Jyri Tahtela <jyri.tahtela@nokia.com> | 2011-06-27 08:47:01 (GMT) |
commit | 9f3fc0e9ce48c52c33c0ea9ff3f8b04d0c276267 (patch) | |
tree | e7d472a44f7b1c95961f8f31d792e8a04cf66c34 /examples/declarative/shadereffects/qml/GrayscaleEffect.qml | |
parent | f078275a2a4b2a279a6fcc24df3c21fe8b21f007 (diff) | |
parent | 36a464681a349a0915f821786b4617695c1d02d4 (diff) | |
download | Qt-9f3fc0e9ce48c52c33c0ea9ff3f8b04d0c276267.zip Qt-9f3fc0e9ce48c52c33c0ea9ff3f8b04d0c276267.tar.gz Qt-9f3fc0e9ce48c52c33c0ea9ff3f8b04d0c276267.tar.bz2 |
Merge remote-tracking branch 'qt/4.8'
Diffstat (limited to 'examples/declarative/shadereffects/qml/GrayscaleEffect.qml')
-rwxr-xr-x | examples/declarative/shadereffects/qml/GrayscaleEffect.qml | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/examples/declarative/shadereffects/qml/GrayscaleEffect.qml b/examples/declarative/shadereffects/qml/GrayscaleEffect.qml new file mode 100755 index 0000000..34505ff --- /dev/null +++ b/examples/declarative/shadereffects/qml/GrayscaleEffect.qml @@ -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 examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** 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, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 1.0 +import Qt.labs.shaders 1.0 + +ShaderEffectItem { + id: effect + property real ratio: 1.0 + property variant source: 0 + + fragmentShader: + " + varying highp vec2 qt_TexCoord0; + uniform sampler2D source; + uniform highp float ratio; + void main(void) + { + lowp vec4 textureColor = texture2D(source, qt_TexCoord0.st); + lowp float gray = dot(textureColor, vec4(0.299, 0.587, 0.114, 0.0)); + gl_FragColor = vec4(gray * ratio + textureColor.r * (1.0 - ratio), gray * ratio + textureColor.g * (1.0 - ratio), gray * ratio + textureColor.b * (1.0 - ratio), textureColor.a); + } + " +} |