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Diffstat (limited to 'examples/quick/scenegraph/graph/shaders/noisy.fsh')
-rw-r--r-- | examples/quick/scenegraph/graph/shaders/noisy.fsh | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/examples/quick/scenegraph/graph/shaders/noisy.fsh b/examples/quick/scenegraph/graph/shaders/noisy.fsh new file mode 100644 index 0000000000..227c2b5974 --- /dev/null +++ b/examples/quick/scenegraph/graph/shaders/noisy.fsh @@ -0,0 +1,55 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +uniform sampler2D texture; +uniform lowp float qt_Opacity; +uniform lowp vec4 color; + +varying highp vec2 vTexCoord; +varying lowp vec2 vShadeCoord; + +#define PI 3.14159265359 + +void main() +{ + lowp float shade = texture2D(texture, vTexCoord).r * 0.05 - length(vec2(0.5, 0.4) - vShadeCoord) * 0.3; + lowp vec4 c = vec4(color.xyz + shade, color.w); + gl_FragColor = c * qt_Opacity; +} |