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Fix some of the effects in qmlvideofx

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* TiltShift was sometimes applying the effect in the wrong place.
* Blur had some QML properties duplicated
* Blur kernel wasn't quite summing to 1, and was applying opacity twice
* The target width for the second pass was incorrect, so it was blending
darkness, resulting in a dreary image.

Change-Id: Ib8ba93d979c597cf4d225b3d24d26a22d0cdffc2
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>
This commit is contained in:
Michael Goddard
2011-12-22 13:08:25 +10:00
committed by Qt by Nokia
parent 8af2548473
commit 2307825461
4 changed files with 8 additions and 7 deletions
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6
examples/video/qmlvideofx/qml/qmlvideofx/EffectGaussianBlur.qml
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@@ -61,7 +61,7 @@ Item {
Effect {
id: verticalShader
anchors.fill: parent
property real dividerValue: parent.dividerValue
dividerValue: parent.dividerValue
property real blurSize: 4.0 * parent.parameters.get(0).value / targetHeight
fragmentShaderFilename: "shaders/gaussianblur_v.fsh"
}
@@ -69,8 +69,8 @@ Item {
Effect {
id: horizontalShader
anchors.fill: parent
property real dividerValue: parent.dividerValue
property real blurSize: 4.0 * parent.parameters.get(0).value / targetWidth
dividerValue: parent.dividerValue
property real blurSize: 4.0 * parent.parameters.get(0).value / parent.targetWidth
fragmentShaderFilename: "shaders/gaussianblur_h.fsh"
source: horizontalShaderSource