diff options
Diffstat (limited to 'examples/particles/customparticle/blurparticles.qml')
| -rw-r--r-- | examples/particles/customparticle/blurparticles.qml | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/examples/particles/customparticle/blurparticles.qml b/examples/particles/customparticle/blurparticles.qml new file mode 100644 index 0000000000..3d72425655 --- /dev/null +++ b/examples/particles/customparticle/blurparticles.qml @@ -0,0 +1,140 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** 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 Nokia Corporation 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.0 +import QtQuick.Particles 2.0 + +Rectangle { + color: "white" + width: 240 + height: 360 + ParticleSystem { + id: sys + } + Emitter { + system:sys + height: parent.height + emitRate: 1 + lifeSpan: 12000 + speed: PointDirection {x:20;} + size: 128 + } + ShaderEffectSource { + id: theSource + sourceItem: theItem + hideSource: true + } + Image { + id: theItem + source: "../images/starfish_1.png" + } + + CustomParticle { + system: sys + vertexShader:" + uniform lowp float qt_Opacity; + varying lowp float fFade; + varying lowp float fBlur; + + void main() { + defaultMain(); + highp float t = (qt_Timestamp - qt_ParticleData.x) / qt_ParticleData.y; + highp float fadeIn = min(t * 10., 1.); + highp float fadeOut = 1. - max(0., min((t - 0.75) * 4., 1.)); + + fFade = fadeIn * fadeOut * qt_Opacity; + fBlur = max(0.2 * t, t * qt_ParticleR); + } + " + property variant source: theSource + property variant blurred: ShaderEffectSource { + smooth: true + sourceItem: ShaderEffect { + width: theItem.width + height: theItem.height + property variant delta: Qt.size(0.0, 1.0 / height) + property variant source: ShaderEffectSource { + smooth: true + sourceItem: ShaderEffect { + width: theItem.width + height: theItem.height + property variant delta: Qt.size(1.0 / width, 0.0) + property variant source: theSource + fragmentShader: " + uniform sampler2D source; + uniform lowp float qt_Opacity; + uniform highp vec2 delta; + varying highp vec2 qt_TexCoord0; + void main() { + gl_FragColor =(0.0538 * texture2D(source, qt_TexCoord0 - 3.182 * delta) + + 0.3229 * texture2D(source, qt_TexCoord0 - 1.364 * delta) + + 0.2466 * texture2D(source, qt_TexCoord0) + + 0.3229 * texture2D(source, qt_TexCoord0 + 1.364 * delta) + + 0.0538 * texture2D(source, qt_TexCoord0 + 3.182 * delta)) * qt_Opacity; + }" + } + } + fragmentShader: " + uniform sampler2D source; + uniform lowp float qt_Opacity; + uniform highp vec2 delta; + varying highp vec2 qt_TexCoord0; + void main() { + gl_FragColor =(0.0538 * texture2D(source, qt_TexCoord0 - 3.182 * delta) + + 0.3229 * texture2D(source, qt_TexCoord0 - 1.364 * delta) + + 0.2466 * texture2D(source, qt_TexCoord0) + + 0.3229 * texture2D(source, qt_TexCoord0 + 1.364 * delta) + + 0.0538 * texture2D(source, qt_TexCoord0 + 3.182 * delta)) * qt_Opacity; + }" + } + } + fragmentShader: " + uniform sampler2D source; + uniform sampler2D blurred; + varying highp vec2 qt_TexCoord0; + varying highp float fBlur; + varying highp float fFade; + void main() { + gl_FragColor = mix(texture2D(source, qt_TexCoord0), texture2D(blurred, qt_TexCoord0), min(1.0,fBlur*3.0)) * fFade; + }" + + } +} + |