displacement flickering in animation, how to avoid it?

[reyner]

Hello:

I was doing a test of an architectural animation with a vray displacement applied to the grass mesh and the result was very fickery. How can attenuate or eliminate the flickering? Any tips welcome.

regards

Reyner

[cocolas]

you might have to render your Imap fro a more frequent number of frames......if only your cam is moving......
in other words if you were calc your Imap every 20 frames before...try something like every 10 or 5 frames.........

or if you have other things moving through your scene then you'll have to render every frame....there is also an animation preset in the Imap settings in the vray render......

paul.

[reyner]

Hello cocolas:

No, I am not using GI in this animation. Still don't know what causes it.
Thanks, anyway

Reyner

[flipside]

is it maybe the AA that causes flickering? What are your AA settings?

[reyner]

Hello flipside:

AA seting are adaptive subdivisions min O max 2

[flipside]

0/2 is usually good, did you alter any other of the AA parameters (like random, threshold)?

Can you show us a small part of the flickering anim?