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yes i can confirm this behaviour.<br>
<br>
<div class="moz-cite-prefix">10.02.2015 15:24, Luca Donaggio пишет:<br>
</div>
<blockquote
cite="mid:CABPtM85UiNmnVXsagaGD9aoznLgq0w3_9YmuwSdZoxL-W_7UhA@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>
<div>Hi Andrey, thanks for your reply.<br>
<br>
</div>
Still, can you try both tests on your Jolla?<br>
</div>
The first shouldn't work, while the second does.<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Feb 10, 2015 at 10:32 AM,
Andrey Kozhevnikov <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:coderusinbox@gmail.com" target="_blank">coderusinbox@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> sorry, not using
emulator at all.<br>
<br>
<div>10.02.2015 14:28, Luca Donaggio пишет:<br>
</div>
<blockquote type="cite">
<div>
<div class="h5">
<div dir="ltr">Anybody is willing to try my test
code and confirm or deny my finding?<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Feb 6, 2015 at
2:12 PM, Luca Donaggio <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:donaggio@gmail.com"
target="_blank">donaggio@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div dir="ltr">The following code works fine
in Emulator, changing the gradient of the
Rectangle correctly updates the nested
ShaderEffectSource and it is reflected on
the ShaderEffect which uses it as its
texture:<br>
<br>
Page {<br>
id: page<br>
<br>
SilicaFlickable {<br>
anchors.fill: parent<br>
<br>
contentHeight: column.height<br>
<br>
Column {<br>
id: column<br>
<br>
anchors { top: parent.top; left:
parent.left; right: parent.right;
leftMargin: Theme.paddingLarge; rightMargin:
Theme.paddingLarge; }<br>
spacing: Theme.paddingLarge<br>
<br>
PageHeader {<br>
title: qsTr("ShaderEffect
Test")<br>
}<br>
<br>
Row {<br>
anchors.horizontalCenter:
parent.horizontalCenter<br>
spacing: Theme.paddingLarge<br>
<br>
Column {<br>
spacing:
Theme.paddingSmall<br>
<br>
Rectangle {<br>
id: gradientSource<br>
<br>
property
list<Gradient> gradients: [<br>
Gradient {<br>
GradientStop
{ position: 0.0; color: "black"; }<br>
GradientStop
{ position: 1.0; color: "blue"; }<br>
},<br>
<br>
Gradient {<br>
GradientStop
{ position: 0.0; color: "black"; }<br>
GradientStop
{ position: 1.0; color: "red"; }<br>
}<br>
]<br>
<br>
width: 100<br>
height: 100<br>
<br>
gradient:
gradients[0]<br>
<br>
ShaderEffectSource {<br>
id:
gradientTexture<br>
<br>
anchors.fill:
parent<br>
sourceItem:
gradientSource<br>
hideSource:
false<br>
live: true<br>
}<br>
}<br>
<br>
Label {<br>
font.pixelSize:
Theme.fontSizeExtraSmall<br>
wrapMode:
Text.WordWrap<br>
text:
"Rectangle\nShaderEffectSource"<br>
}<br>
}<br>
<br>
Column {<br>
spacing:
Theme.paddingSmall<br>
<br>
ShaderEffect {<br>
property variant
source: gradientTexture<br>
<br>
width: 100<br>
height: 100<br>
<br>
blending: false<br>
cullMode:
ShaderEffect.BackFaceCulling<br>
fragmentShader: "<br>
varying highp
vec2 qt_TexCoord0;<br>
uniform lowp
float qt_Opacity;<br>
uniform
sampler2D source;<br>
<br>
void main() {<br>
gl_FragColor
= texture2D(source, qt_TexCoord0) *
qt_Opacity;<br>
}"<br>
}<br>
<br>
Label {<br>
font.pixelSize:
Theme.fontSizeExtraSmall<br>
text: "ShaderEffect"<br>
}<br>
}<br>
}<br>
<br>
Button {<br>
anchors.horizontalCenter:
parent.horizontalCenter<br>
text: "Blue gradient"<br>
<br>
onClicked:
gradientSource.gradient =
gradientSource.gradients[0]<br>
}<br>
<br>
Button {<br>
anchors.horizontalCenter:
parent.horizontalCenter<br>
text: "Red gradient"<br>
<br>
onClicked:
gradientSource.gradient =
gradientSource.gradients[1]<br>
}<br>
}<br>
}<br>
}<br>
<br clear="all">
<div>It doesn't work on device though
(changing Reactangle's gradient doesn't
update the ShaderEffectSource).<br>
<br>
</div>
<div>Un-nesting the ShaderEffectSource from
its source item (the Rectangle) works fine
both on emulator and on device:<br>
<br>
Page {<br>
id: page<br>
<br>
SilicaFlickable {<br>
anchors.fill: parent<br>
<br>
contentHeight: column.height<br>
<br>
Column {<br>
id: column<br>
<br>
anchors { top: parent.top;
left: parent.left; right: parent.right;
leftMargin: Theme.paddingLarge;
rightMargin: Theme.paddingLarge; }<br>
spacing: Theme.paddingLarge<br>
<br>
PageHeader {<br>
title: qsTr("ShaderEffect
Test")<br>
}<br>
<br>
Row {<br>
anchors.horizontalCenter:
parent.horizontalCenter<br>
spacing:
Theme.paddingLarge<br>
<br>
Column {<br>
spacing:
Theme.paddingSmall<br>
<br>
Rectangle {<br>
id: gradientSource<br>
<br>
property
list<Gradient> gradients: [<br>
Gradient {<br>
GradientStop { position: 0.0; color:
"black"; }<br>
GradientStop { position: 1.0; color:
"blue"; }<br>
},<br>
<br>
Gradient {<br>
GradientStop { position: 0.0; color:
"black"; }<br>
GradientStop { position: 1.0; color:
"red"; }<br>
}<br>
]<br>
<br>
width: 100<br>
height: 100<br>
<br>
gradient:
gradients[0]<br>
}<br>
<br>
Label {<br>
font.pixelSize:
Theme.fontSizeExtraSmall<br>
text: "Rectangle"<br>
}<br>
}<br>
<br>
Column {<br>
spacing:
Theme.paddingSmall<br>
<br>
ShaderEffectSource {<br>
id:
gradientTexture<br>
<br>
width: 100<br>
height: 100<br>
sourceItem:
gradientSource<br>
hideSource: false<br>
live: true<br>
}<br>
<br>
Label {<br>
font.pixelSize:
Theme.fontSizeExtraSmall<br>
text:
"ShaderEffectSource"<br>
}<br>
}<br>
<br>
Column {<br>
spacing:
Theme.paddingSmall<br>
<br>
ShaderEffect {<br>
property variant
source: gradientTexture<br>
<br>
width: 100<br>
height: 100<br>
<br>
blending: false<br>
cullMode:
ShaderEffect.BackFaceCulling<br>
fragmentShader: "<br>
varying highp
vec2 qt_TexCoord0;<br>
uniform lowp
float qt_Opacity;<br>
uniform
sampler2D source;<br>
<br>
void main() {<br>
gl_FragColor = texture2D(source,
qt_TexCoord0) * qt_Opacity;<br>
}"<br>
}<br>
<br>
Label {<br>
font.pixelSize:
Theme.fontSizeExtraSmall<br>
text:
"ShaderEffect"<br>
}<br>
}<br>
}<br>
<br>
Button {<br>
anchors.horizontalCenter:
parent.horizontalCenter<br>
text: "Blue gradient"<br>
<br>
onClicked:
gradientSource.gradient =
gradientSource.gradients[0]<br>
}<br>
<br>
Button {<br>
anchors.horizontalCenter:
parent.horizontalCenter<br>
text: "Red gradient"<br>
<br>
onClicked:
gradientSource.gradient =
gradientSource.gradients[1]<br>
}<br>
}<br>
}<br>
}<br>
<br>
</div>
<div>Is it a bug?<span><font color="#888888"><br>
</font></span></div>
<span><font color="#888888">
<div><br>
-- <br>
<div>Luca Donaggio</div>
</div>
</font></span></div>
</blockquote>
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<br>
<br clear="all">
<br>
-- <br>
<div>Luca Donaggio</div>
</div>
<br>
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<br>
-- <br>
<div class="gmail_signature">Luca Donaggio</div>
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