Flickering glossy reflections

V-Ray for 3ds Max V-Ray for 3ds Max :: General
1

Hello,

at the moment I am rendering an animation. The main Object in this animation has got a vray material with glossy reflection.
As soon as the camera moves or another object comes close to the vray-mat.-object, the material starts flickering.
I tried to decrease the “Clr. theshhold” and the “Nrm threshold” amount. The result seems to be much better. But there is still a bright flickering at the objects edges. Might this be a problem of bad mesh geometry (the object is an imported CAD object)?

I already searched the forum and found one topic concerning a similar problem. But I did not realize a definitive solution.
Some people say that you should not activate the “use interpolation” option in animations. Is this correct? This would mean a much longer render time and grainy reflections, or I am wrong?

Best regards,
Mirko

2

Correct, interpolation does not animate well. However you don’t need 50 subdivs for non-interpolated glossies. Turn it down to 8 or even lower if it doesn’t get grainy. It should render reasonably fast.

3

and make sure you have good AA settings.

4

Natty what would be considered good AA settings to stop flickering in animations? Adaptive Subdivision set to min -1 , max 5?

5

Im not saying it will stop the flickering but it will help … try going to 0 / 3 or even 1 / 3

6

it works :slight_smile:

Thank you for your advice! Now it works fine!

Regards,
Mirko