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| |
| // Based on http://www.geeks3d.com/20100909/shader-library-gaussian-blur-post-processing-filter-in-glsl/ |
| |
| import QtQuick 2.0 |
| |
| Item { |
| id: root |
| property bool divider: true |
| property real dividerValue: 0.5 |
| property ListModel parameters: ListModel { |
| ListElement { |
| name: "Radius" |
| value: 0.5 |
| } |
| onDataChanged: updateBlurSize() |
| } |
| |
| function updateBlurSize() |
| { |
| if ((targetHeight > 0) && (targetWidth > 0)) |
| { |
| verticalBlurSize = 4.0 * parameters.get(0).value / targetHeight; |
| horizontalBlurSize = 4.0 * parameters.get(0).value / targetWidth; |
| } |
| } |
| |
| property alias targetWidth: verticalShader.targetWidth |
| property alias targetHeight: verticalShader.targetHeight |
| property alias source: verticalShader.source |
| property alias horizontalBlurSize: horizontalShader.blurSize |
| property alias verticalBlurSize: verticalShader.blurSize |
| |
| |
| Effect { |
| id: verticalShader |
| anchors.fill: parent |
| dividerValue: parent.dividerValue |
| property real blurSize: 0.0 |
| |
| onTargetHeightChanged: { |
| updateBlurSize() |
| } |
| onTargetWidthChanged: { |
| updateBlurSize() |
| } |
| fragmentShaderFilename: "gaussianblur_v.fsh" |
| } |
| |
| Effect { |
| id: horizontalShader |
| anchors.fill: parent |
| dividerValue: parent.dividerValue |
| property real blurSize: 0.0 |
| fragmentShaderFilename: "gaussianblur_h.fsh" |
| source: horizontalShaderSource |
| |
| ShaderEffectSource { |
| id: horizontalShaderSource |
| sourceItem: verticalShader |
| smooth: true |
| hideSource: true |
| } |
| } |
| } |
| |