[Interest] How can i dissolve/appear a picture using particles in QML?

Mark markg85 at gmail.com
Fri Apr 26 20:24:00 CEST 2013


On Fri, Apr 26, 2013 at 6:05 PM, Alan Alpert <416365416c at gmail.com> wrote:
> For the image case you can use
> http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick-particles2-maskshape.html
> . That should be fairly simple.
>
> Unfortunately the arbitrary item case is not so simple. I believe you
> have to use a http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick-particles2-customparticle.html
> , use ShaderEffectSource to get the other Item into the custom
> particles shaders as a texture, and use that texture as a filter to
> play only particles that end up inside that texture (or if exploding
> from it, which end up inside the texture but play the particles
> backwards).
>
> --
> Alan Alpert
>
> On Fri, Apr 26, 2013 at 2:20 AM, Mark <markg85 at gmail.com> wrote:
>> Note: I said image but i meant any Item {...} based object. With a
>> result like for example this:
>> http://www.youtube.com/watch?v=FB4SZCTIcuo (first few seconds) Now
>> that is for text, but if the "effect" works on items then the content
>> of that item shouldn't matter i suppose.
>>
>> On Fri, Apr 26, 2013 at 10:19 AM, Mark <markg85 at gmail.com> wrote:
>>> Hi,
>>>
>>> I guess this is possible, but i don't know how. I'm searching for docs
>>> somewhere that explain how i can dissolve an image using QML Particles
>>> or the other way around let it appear using particles.
>>>
>>> How can this be done in QML?
>>>
>>> Regards,
>>> Mark
>> _______________________________________________
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>> Interest at qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/interest

oh wow, that's awesome! Going to play with that one. Though i really
have no clue how to play with the reverse one (building a picture from
particles instead of breaking it down)

Thank you very much, Alan!



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