Light is flickering through glass MIA material, GI, FG...

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

Thread Tools Search this Thread Display Modes
  06 June 2009
Light is flickering through glass MIA material, GI, FG...

Hey there,
I have recently rendered out something and have run into a couple of problems. My main issue has to do with a florescent light that is incandescent with > 1 values and emitting final gather light. As the camera pans, the light seems to flicker. Look through the glass at the light and you'll see what I mean. I have relatively high FG rays, I am using GI and caustics. My final gather map is not being rebuilt. I have 14 reflections and 14 refractions. Kind of clueless as to what is causing the problem. The glass is a mia material physical glass preset. The bg was blurred with zdepth pass in post. Hopefully someone can help!

Thanks in advance!

Here is the link to the video:
  06 June 2009
help me ple3ze
  06 June 2009
Are you using an FG emitting material or is it an area light? If so, try with just photons, otherwise increase the FG Quality in the Indirect Illumination Override rollout of the material. There appears to be something hanging slightly in front of the striplight where the noise occurs, does it do with that removed? Does it do it with the camera still?

Problems like these can all be solved in the same way, it's just a process of elimination.
  06 June 2009
it looks like an AA issue... what filter are you using?

my suggestion would be render it at 2x res then bring it down to regular res ina post program. might help the flickering
  06 June 2009
yep... its tooo sharp.

try adding some blur on it...
  06 June 2009
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
Thread Closed share thread

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Society of Digital Artists

Powered by vBulletin
Copyright 2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump

All times are GMT. The time now is 09:28 PM.

Powered by vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.