Image Motion Blur Problem with FP Trees

[Mike Truly]

Carlos,

I can't remember if I've had this problem before.  I have rendered an animation with Image Motion Blur applied to a scene and the FP trees are fine on one frame and mega-blurred on the next.  This produces a strobing effect where the animation will be fine for a while then there will be a freak frame and then fine again.

Should I NOT be using Image Motion Blur on the trees?  The attached images are two frames that are right next to each other (of course you can see the difference).

Thanks!

[iToo]

Mike,

Yes, there is some problem with Motion Blur and Forest. By now, disable the effect for the Forest objects... i will ask to Autodesk about this.

[Mike Truly]

Thanks for the info Carlos.  I am now rendering without IMB and will try to apply IMB in the compositing stage as see how that works instead of IMB in MAX render.

Thanks again.