Animation swipe stutter

Daniel Zwolenski zonski at gmail.com
Sun Jun 2 01:32:17 PDT 2013


Thanks for the info. No VMWare going on with this one. 

Regrettably the app is not mine to share, it's a clients. Taking screen shots is a liberty. 

It is visible on multiple different windows machines though. 


On 02/06/2013, at 6:15 PM, Tom Eugelink <tbee at tbee.org> wrote:

> 
> I had a similar problem where my calendar popup would flicker when moving the mouse. This was also only reproducible on my system alone. Turns out the fact that I'm using VMWare to separate all the different projects I work on was the cause; somewhere half consciously I've clicked on a VMWare setting called "accelerate 3D graphics" and that didn't quite work as expected.
> 
> One of the things you can do is let other people run your app and see when the stutter occurs; maybe there is a common denominator. I'm willing to test, and creating a UI only version should not be that hard.
> 
> Tom
> 
> 
> On 2013-06-02 07:36, Daniel Zwolenski wrote:
>> Here is another one I can't reproduce in a constrained example.
>> http://www.screencast.com/t/ufJsZhiLhNJH
>> 
>> This is a real world app that runs on a tablet (Windows). I tried to give
>> this app a bit of an "iPad style", with animations to transition between
>> screens, etc (this was built a year or two ago). Many of the animations '
>> perform poorly' and are either slow or jumpy, etc, but it's hard to capture
>> on video and hard to replicate in simple examples.
>> 
>> In this video you can see a 'stutter' as the animation goes from left to
>> right and back again. The stutter is right at the end just before the
>> transition finishes. Sometimes it's pretty much perfect but 70% of the time
>> it either overshoots and re-adjusts or just suddenly jumps to the end point
>> before it's finished the smooth animation. At least that's the visual
>> effect as far as I can tell.
>> 
>> This (and many of the problems) could very well be an issue with the actual
>> code on my end and not true JFX issues. I've tried to narrow down further
>> but it is very time consuming to do this and it would help to know if there
>> were any rough guesses at what might be causing this problem.
>> 
>> Is it the fact that everything is so highly styled, or just the number of
>> components, is it something like I shouldn't do any actual real work in an
>> 'on finished' method, etc? If there are any possible leads then I can try
>> and put together a small sample but at the moment I'm firing randomly.
>> 
>> As far as the code goes, it's a fairly standard parallel transition
>> containing two translate transitions. A very simple example of the sort of
>> logic used can be seen here:
>> https://code.google.com/p/zenjava-playtime/source/browse/trunk/javafx-performance/animate1/src/main/java/com/zenjava/jfx/performance/animate1/SwipeApp.java
>> 
>> But this one animates consistently smooth.
> 
> 


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