You're right. If you paste the parent's translation to the spinning element, it still reproes as well, so hierarchy is not important here. >From what I can see, despite the linear motion, the ark you're getting is >because although the object is moving in a linear way, it has to evaluate the >spinning motion also for the motion vectors. I have a feeling it's always been like this. Setting the wheels to 'deformation blur' may seem ok but are your 'deform' 'motion steps' set to 1? I made a quick video here: http://www.screencast.com/t/gHNvdMW0X2JC
As you can see, it seems ok when you set the transform steps to 1 (Perhaps your deform steps were set to 1?) I'd have to check in previous versions if it's the same. I should have some time later and I'll let u know before eod. -manny|SI support From: [email protected] [mailto:[email protected]] On Behalf Of Ed Manning Sent: Wednesday, July 18, 2012 12:48 PM To: [email protected] Subject: Re: Car wheel motion blur I have reproduced this behavior. 2013 SP1. various types of objects as parent and child. Even with both rotation and translation on one object. Manny -- try using a fairly large translation amount per frame. At low speeds it's not really noticeable. At high speeds it's glaringly evident. At higher speeds still, it's hard to see again. Looks like a real bug to me. On Wed, Jul 18, 2012 at 5:21 AM, Arvid Björn <[email protected]<mailto:[email protected]>> wrote: Yep, more steps only produce a smoother error :-) On Wed, Jul 18, 2012 at 11:03 AM, Jack Kao <[email protected]<mailto:[email protected]>> wrote: Have you played with adjusting the motion steps in the renderer options?
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