pixels problem..

[shikodesign2000]

Hi,

 

After making one animation shot which contains some vray proxy trees, I found that there is non stable pixels in these trees, these pixels act as they are dancing, that is happening when I move the camera, but no problem in stable camera shots...

 

I need to know which settings exactly is responsible for this problem??

[F J]

r u using Light Cache?

[shikodesign2000]

yes, irradiance for primary, and light cache for secondary...

[F J]

u never replied back to my suggestion in ur previous thread:

 

also if Light Cache is set to Screen instead of World could cause pixel swimming for animations..

[shikodesign2000]

Sorry, but I have an animation must be delivered very soon, never intend anything, and thanks for you care in all cases.

Anyway, I use screen not world, I think world will take too much time, right?

[F J]

i havent really compared the times for both settings, but u can quickly test a single frame to compare times..

anyway, the World setting is said to deal with pixel swimming..

[shikodesign2000]

Hi my friend, I'm posting 2 links for animation sample, and my settings.

 

Please take care of the unstable pixels in the tree especially in shadow area.

 

For this animation sample I changed the secondary illumination from light cache to brute force + irradiance as first illumination, but these unstable pixels still there.

 

Also, I changed the output compressor from avi to quick time_sorenson 3, I think also that is better.

 

Here are the links:

http://www.mediafire.com/?8vvkkwyn6m8j89h

http://www.mediafire.com/?7t8998a2tstxrl4

 

Here is another links for other sample, but I used light cache as secondary solution:

 

http://www.mediafire.com/imageview.php?quickkey=5gibu1y8t511tt2&thumb=4

http://www.mediafire.com/?d9oao8ofq6lge7t

 

I think the problem is very obvious in buildings and palms but so obvious in the trees areas...

 

I don't know if the solution is only in raising some settings, cause I already tried to raise them without good result.

 

 

I hope to have your help soon.

Edited December 29, 2010 by shikodesign2000

[shikodesign2000]

Please.. any help..

[Ismael]

Maybe QMC?

http://www.maxforums.org/threads/architectrual_animation_settings_vray/0001.aspx

[Crazy Homeless Guy]

Use Adaptive DMC and a AA filter that is suitable for animation, if you use an AA filter at all. You are currently using Adaptive Subdivision and a Sharpening filter.

[shikodesign2000]

Do you mean that catmull rom is not good, so what's the good filter in your openion?

[John Dollus]

area filter should be fine. anything in the description that mentions blur is good for video and anything that mentions sharpening or pronounced edge is bad for video