Has new Release sorted animation problems ?

[Infrared digital]

Hi

Just wanted to ask this before I install - has the noise and flickering problems been sorted when rendering animations ?

thanks

N

[aphex79]

about the flickering: http://www.chaosgroup.com/forum/phpB...ight=animation

[Infrared digital]

Hi

thanks

I was aware of that post but has anyone actually rendered an animation that had flickering with the previous release of vray but with the new release it gone ?

N

[vlado]

Well, I know of at least 2 people who have done that... maybe someone else will share their experiences as well.

Best regards,
Vlado

[Morbid Angel]

I have done some tests. What I can say is, while it provides a smooth almost flicker free gi solution, its a lengthy render for irradience map calculation. Since unlike irradience map for static objects, it recalculates irmap completely from frame to frame. So the ratio of irrmaps for animation vs camera flythroughs is about 10 to 1. Still faster then qmc...

[percydaman]

at LEAST 10-1, since I usually go with every 20 frames. BUT I'm thinking you might be able to distribute all your irrad frames across your renderfarm now. Which if it works is pretty sweet.

[Shane W]

I just rendered some frames at 720p from a recent animation and am very impressed with quality/time. The original frames using irradiance map with detail enhancement/QMC were in the 1 to 1-1/2 hour range with a few small flickering problems. QMC/QMC was actually a bit faster but noisy and also had some flickering issues around some reflections on the floor. With the new animation mode I rendered all the prepass frames on my farm. Prepass was around 3-1/2 to 5 min a frame. Final frames took around 20 min ea. without any flickering problems. The final output was actually a little too clean so I think I could get the times down a bit more.

-Shane

[Dynedain]

I've been doing some testing as well...

It is by no means faster than a traditional Irrmap solution, but with a traditional Irrmap, you can't animate anything but the camera.

It is however, substantially faster than QMC for a scene with animated objects.

[Morbid Angel]

agreed and agreed

[vlado]

BUT I'm thinking you might be able to distribute all your irrad frames across your renderfarm now.

You can do this, yes.

Best regards,
Vlado

[CarlosBZ]

I have the same problem. Here there are some samples showing my problem and how I try to overcome that situation, hopefully these images are self explanatory:







Each solution carries their own problems... and possibilities. At the end, I don't know if I'm right or totally lost, I think it's all about to choose over what render time you want:



I choose speed, that is, render time over all other options. I think adaptive QMC is fast but when it comes to eliminate those bright points with material subdivisons it gets quite slow, aQMC is good with thin lines, very very good but it's terrible with glossy (light reflections ?), and, in the other hand, aSubdivision is a very smooth solution for the materials and glossy but is terrible with the thin lines and not so slow overall in the material subs arena. One can fix aSubs thin lines problems increasing min/max rates but you may got stuck/trapped in a very long render times, being there!

final settings and the final animation:




http://www.dreamimg.com/Vray-Forum/a...ining-v03b.mpg (14 Mb)


Note: I don't post very often due my obvious English language limitations, I read your posts and I had learn a lot from you, sometimes I got confused over some subjects, I hope this post may help and not confuse anyone. Best regards.

[vlado]

Carlos, your problems are of a different nature... you get the noise not because of GI flickering, but because of glossy reflections and/or hilights. If you have "Reflective GI caustics", turning them off will help. If you have VRayLights, making them not to affect specular/reflections will also help.

Best regards,
Vlado

[werticus]

Carlos: Although your English isn't perfect its not hard at all to read or understand.

You've posted something very interesting, so don't hesitate to post at any time!

[CarlosBZ]

Carlos, your problems are of a different nature... you get the noise not because of GI flickering, but because of glossy reflections and/or hilights. If you have "Reflective GI caustics", turning them off will help. If you have VRayLights, making them not to affect specular/reflections will also help.

Best regards,
Vlado

Thanks Vlado,

Yes, you're right Vlado, it's not GI flickering, my bad, sorry.

I will check thoroughly, but IICR "Reflective GI caustics" is off, always off in my settings, but maybe I screw up, I think is definitively off but I need to check, and about VRayLights specular/reflections they were set not to affect, maybe one left on is hampering the whole set, I'll double check too. As you all may know, any check it will take time and then days to see the whole thing up and running, I promise to post the results.

When I downloaded Infrared's clip I thought it was more related to this... sort of flickering (glossy reflections and/or hilights) then to GI flickering, here.

I don't know for sure if this another example is GI flickering (in the same model/solution), I think it is. It was a test, please take a look and take special note on the elevator's door; the other doors are splotchy and I never was able to get rid of it (the splotchiness), I just don't know how... and I tried everything.

http://www.dreamimg.com/Vray-Forum/a...vator-v03a.mpg (15 Mb)




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werticus Posted: Sun Aug 19, 2007 4:02 am Post subject:

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Carlos: Although your English isn't perfect its not hard at all to read or understand.

That's a relief! but I will not want to be overconfident.

[^Lele^]

http://www.chaosgroup.com/forum/phpB...ic.php?t=19702
http://www.chaosgroup.com/forum/phpB...ic.php?t=20175

A tool to change parameters for all lights in a scene, in one go. (first link is the standalone, second is within a pack of scripts.)
It lacks the "affect reflection" box yet, will be updated in a week or two at most (i'll be away for a week or so)

http://www.chaosgroup.com/forum/phpB...=157625#157625

Simple way to get rid of GI splotchiness in even areas (like walls, doors and so on).