mental ray flickering/creeping edges at render

#1

Hi

yes, i am here again, problem with mr rendering, have searched but havent come up with anything

have quite a few edges on a rendered object/s that show quite bad creping/flickering along edges(object/s is in “worst” case position, about 20-30 degree tilt off the horisontal plane), and also on reflected textures(alot of stainless in scene) FG have been in use and also been disabled to try and iron out what causes this artifacts,

have so far tried a few filtering changes(gauss now at 3/3, have tried 5/5 but that to high) , also upped the samples to 16, jitter is also ticked, disabled the FG, nothing helps it seems,

if anyone has any suggestions on what to try or look into it would be most helpful

Cheers,

k.

#2

This might help;)

3dsmaxrendering.blogspot.com/2008/04/why-does-my-animation-flicker_02.html

#3

ok, thanks Hordak,

but link seems not working? is that to Ramy Hanna’s pages?

Cheers,

k.

#4

www.3dsmaxrendering.blogspot.com/2008/04/why-does-my-animation-flicker_02.html

Yes it is!

this should work, if not delete the “forums.cgsociety.org” part in your browser.

#5

thanks Hordak

yep, he sure has good info on how to tweak mr,
all in all very good info, but this time it seems not the FG etc that causes the problems, seems a combination of unfortunate alignment and geomtry/textures,

going to redo some of the models in there

Cheers,

k.

#6

Are you using some interpolation in reflection?

#7

not sure I understand, i’m using mr pro material and the mr arch&design ones, most at defualt settings, metals, brushed ditos etc, high gloss paint etc
are you reffering to the [Fast Glossy Interpolation] rollout?

Cheers,

k.

#8

right, got it working, someone at a cgarchitect board discussion recommended sampels at 4/16 and mitchell filter, and this has worked very well for me too(rendertime way up but good quality), so i’m a happy puppy again

Cheers,

k.

#9

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