TweenMax: Works well, then not...

[MakotoNinja]

I am making a game in which enemies strut down a path. At each turn in the path I have a movieclip that sets up a tweenMax instance on the enemy clip when the enemy clip makes contact with it. I am using 'shortestRotation' and 'transformAroundPount' on these tweenMax instances and they basically rotate the enemy clip 90 degrees in the appropriate direction. This all works fine and dandy until I go to the 'choose level' screen which basically turns the level container movieclip's visibility to false and the 'choose level' movieclip's visibility to true. Once you select a new level from the chooser, a function nullifies all the arrays and variables populated by the last level and loads the appropriate level into the level container. Now it seems that the Tweens in each subsequent level that is loaded jitter or are jerky at the beginning and end of the tweens.

Here is the code I'm using for each tween instance.

TweenMax.to(baddie, tweenSpeed, {
ease:Linear.easeNone,
useFrames:true,
overwrite:5,
immediateRender:true,
onUpdate:addRotToDistanceTraveled,
onUpdateParams:[baddie, baddie.rotation],
onComplete:resume,
onCompleteParams:[baddie],
shortRotation:{rotation:rot},
transformAroundPoint:{
	point:rPoint,
	scaleX:1,
	scaleY:1
}
});

[GreenSock]

It's very tough to troubleshoot general "jittery" performance without seeing your FLA and surrounding code. Are the objects large? Typically, the biggest performance issue by FAR is graphics rendering which has nothing to do with TweenLite/Max performance. Also, do your objects have filters applied? If so, they force cacheAsBitmap to true which forces them to render only on whole pixel values which can lead to them looking like they're "jittery" but again, it has nothing to do with TweenLite/Max. I noticed you're using an onUpdate as well which can be pretty CPU-intensive depending on how optimized your code is inside the onUpdate.

 

If you're still having trouble, please create a sample FLA that demonstrates the issue and post it here. It doesn't need to be your production file(s) - the simpler the better. And don't forget to zip the file(s) first.

[MakotoNinja]

If at all possible, can I email the file directly? I can strip down the file a bit, but to have the problem remain, I'll have to leave in some code I don't really want public.

[GreenSock]

Yes, but please keep it as bare-bones as possible for the sake of clean, prompt troubleshooting. Did you already make sure there are no filters or large objects animating and that your onUpdate code is well-optimized?

[MakotoNinja]

Yes, the items being tweened are just small filled triangles, the onUpdate is just one line adding to a value and there are no filters.

[MakotoNinja]

I've sent you off the file to your email, hopefully your spam filters didn't get rid of it.

I appreciate your help on this.

[GreenSock]

Yep, I responded within about 10 minutes of receiving it (a while ago). Did you not receive my response? I couldn't reproduce the problem at all. You're using the latest version of the classes, right? (at least v11.2)

[MakotoNinja]

I didn't receive your reply, could you send it again if there is anything in the message I need to read? I am using 11.2, just purchased the "really green" club membership a little while ago. The jitter is very slight but it exists; maybe if you could email me the compiled SWF and so that I can compare the two.

[GreenSock]

I just resent the e-mail for the 2nd time (maybe check your spam filter?)

 

Does the frame rate drop for you? Is there anything you can do to make the jittering worse so that it’s more obvious to me? I didn't see any problems at all.