CGTalk - Problems with flicker

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rodrigoavicente

02-15-2009, 05:48 PM

Hi guys,,

I´m have some problems with flicker in my animations. I work with VIZ Architectural doing still´s and flythrough of my projects. I use the 3DS Max and to render I use the V-ray.

The flicker happens at grass with displacement, plants and trees, any object very small and some textures...

Anybody knows how to resolve this problem???

Thank´s

ShDesigner

02-16-2009, 09:17 AM

I think this flicker happens from Gi Settings,. if your gonna use Qmc in Prim./Sec. Bounces you will not face that problem but it will take more time for rendering,. or you can save Irridiance solutions for some frames and combine it together in one solution.

I hope that is gonna help ya.

rodrigoavicente

02-16-2009, 09:41 AM

Hi sherifeid,

Use qmc as Prim and sec. bounce is not viable; it´s very slow. I use IR + QMC.

I save the IR Every Nth Frame = 30.

My settings is:

Min rate: -3
Max rate: -2
Hsph sub:50
Inter samples: 20
Crl tresh: 0,35
Nrm tresh: 0,35
Inter frames: 0,15

I tested a high settings too, but the problem continued.

Thanks

ShDesigner

02-16-2009, 10:02 AM

Really im facing the same problem and im doing search about this topic

Please check that link i think it will be helpful for us

http://www.spot3d.com/vray/help/150SP1/tutorials_imap2.htm "Walk-through Animation"

http://www.spot3d.com/vray/help/150SP1/tutorials_anim.htm "Animation with moving objects"

i hope that gonna help the problem

Good luck

flumpa

02-20-2009, 09:02 AM

I just solved a similar problem in my render.

Try to increase the DMC value above 20.
Then play around with Min rate: and Max rate: to get more prepasses in your render.

I used Min rate:-5 and Max rate: 0 for a 640 x 480 render

Take a look at this page for how to calculate the min/max
http://www.vray.info/topics/t0101.asp

Hope this help :)

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