Camera zooming in problem, when motion blur enabled.

[Yompa]

I'm using a one-node camera.

I have an object on screen, with 3D enabled, with motion blur enabled. The composition has motion blur enabled.

Using the camera, I zoom out and halt (moving its Z position), and everything is fine. However, as soon as I start to zoom in, the 3D object disappears during motion, but when the camera gets to its destination halt, the 3D objects reappears. As I scroll through the timeline at a slow rate, the 3D objects actually fades away as if its opacity was being tampered with, then it reappears suddenly at the camera's destination. But I did not do anything to the opacity at all.

This only happens when motion blur is enabled. Also, this only happens when zooming in; zooming out works just fine.

Any ideas to why this problem is happening?

[Dave_LaRonde]

Try purging your memory & caches.  See what happens.

[Roei Tzoref]

show us some screenshots or a video capture and show your setup. this could be a few things...

[Kevin-Monahan]

Hi Yompa,

Sorry to see you had these issues. Did you ever solve them? Please let us know and how you did so. Please also let us know if you need more assistance.

Thanks!
Kevin

[Rick Gerard · Accepted solution]

Check the composition settings. If the move is big and the shutter angle is larger than 180º then what you are describing is not only possible, but with a large enough shutter angle, entirely predictable. You'll find these controls in the Advanced tab of the Composition Settings.