[Qt-qml] "Cheating" in startup.qml?

[Nigel.Hietala at nokia.com]

Hi Jason,

Glad you like the animation. During it's creation we were finding that we did not have enough time to get effects such as blur and drop shadow to perform to the standards we had set and so, although these effects were in early versions of Qt Quick, we removed them for the official release. I then used the cheats you can see in the demo. As today's latest and greatest mobile devices have pretty powerful GPU's we hope to bring effects such as blur and shadow into Qt Quick as in a way that they can be applied to any other Qml element at run time. No idea when this will happen, but it is something we are thinking about for the future. 

- Nigel   



On Sep 8, 2010, at 9:33 PM, "ext Jason H" <scorp1us at yahoo.com> wrote:

> I downloaded the SDK rc1 for 4.7
> 
> I wanted to check out the QML stuff, but the QtCreator IDE does not quote the 
> script name (as a parameter), so I was going to launch it manually, and take it 
> from there.
> 
> When I loaded it, I was completely blown away by the included animation. It was 
> amazing. Even slowed down. Truly epic stuff! I immediately needed to know how it 
> did all that so I loaded up startup.qml, and it was revealed to me. But the 
> assets here used quite a few pre-rendered images. I expected the Qt logos to be 
> pre-rendered, but the blur and drop shadow stuff was, I thought, doable in QML? 
> 
> 
> I'm trying to make a very flexible application using user art resources, and I 
> didn't want the user to have to do this kind of thing. Would it be possible to, 
> now or in the future have QML create these at run time? (Via serialization to 
> disk, or just in-memory?) 
> 
> 
> 
> Imagine: 
> Rectangle {  id: rect1
>     y: 100; width: 80; height: 80      gradient: Gradient {          
> GradientStop { position: 0.0; color: "lightsteelblue" }          GradientStop { 
> position: 1.0; color: "blue" }      }  }then calling something like 
> export(rect1, "rect1.png") In this way, QML can be used as a compisting engine.
> 
> I thought there were Blur, DropShadow, etc, so I guess my question is why were 
> they not used?
> 
> Also, I would like to alert you to a documentation discrepancy. In QtCreator's 
> help under "Qt4.7: QML Elements: Home: QML Elements" the Effects listed are all 
> particle effects, and grayed out. The "QML Reference: Home: Elements" page 
> however has the full complement listed. It might be just rc-status, but it might 
> not.
> 
> But I am so excited to be using QML!
> 
> 
> 
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