noise problem in interior animation..

[shikodesign2000]

Hi,

 

While finishing my interior animation project, I faced some noise areas in kitchen and bathroom, especially in the shadows areas, I don't know the reason for this?? but it's a very bad effect, and must be eliminated, but how?

 

I'm using the famous technique of calculating the lc and ir maps for all sequence, them render all stills, then gathering them.

 

by the way I didn't face this noise problem in the entrance and bedroom area:confused:

 

Please if anyone have any information about this problem, let me know.

[Zdravko Barisic]

image?

settings?

[tayrona]

submit your imap an lc settings.

Try setting up hsp sub and interp samples in the imap values.

[shikodesign2000]

http://3dshore.com/stills/bath-test.jpg

 

The settings:

 

Light Cahe: subdivisions: 1000

sample size: 0.01

scale: screen

 

Irradiance: Hsph. subdivision: 50

Interpolation: 20

 

Vray Light: Multiplier: 12, subdivision: 15

[djoshi]

Increase LC subdivision to 3000 or something...

[jonblaze]

when you say noise, do you mean the anim flickers when played after compression?

 

Dont really know about lc, it may be easier to simplify the process.

render your solution using a qmc sampler method and incremental add to map.

 

render every 10 frames or so. Use the final irr map produed to render your animation remember to render every frame!

[shikodesign2000]

I just meant that when I made a test for any still of the animation (like the one I'm posting here, it's suppose that I don't find any noise or bad areas.

As you see in this image, the surrounding red area is very noisy and not clear, and this will be reflected in the animation in turn, just..

 

Anyway, I'll try your method and will see, thanks any way;)

[tayrona]

did you try raising interpolations to 40 or more? (imap interp, under hsps subdivs)

If the GI is working in your stills but not in animations, it is a precalculation issue.... i think.... and the imap is the one that is not calculated completely, is aproximated using the "X" frames you pre calc. so you must concentrate there (this is a non expert opinion, but could help.... at least somebody could post that its completely wrong and give the right solution!)

[Joseph Petrino]

Have you checked "store with irradiance map" on your Vray light?

 

Some people say the shadow quality suffers when you check this, but in my experience noise like the kind your showing, disappears.

[shikodesign2000]

Unfortunately, both solutions didn't work, anyhow, I'm after it and I'll let you know the results.

 

By the way, I'm splitting my interior animation into 5 sections: Entrance&Dining, Master bedroom, Chidren Bedroom, Bathroom and Kitchen.

 

I finished the first 2, then I faced these problems in the last 2, now I want to get out a little and will make the children bedroom, I'll let you know how it'll work.

[quicktor]

I think you should set the subdivs of your vray light to higher than the default. (for example 16)

[Brian Smith]

well first of all, are you using a precalculated lc and irmap? if not then you will always getting flickering gi. but if you are getting flickering in the AA (which is smaller grainer noise), then you need to improve image sampling. adapt qmc with a min/max=2/5 or 3/6 combined with a reduction in clr thresh to 0.005 will almost always yield good results.

 

if you're getting splotches, then increase ir map inter samples (50 to 100).

 

without seeing an animation sample, can't really speculate any further

[shikodesign2000]

Hi,

 

I tried to separate the kitchen which has the noise problem to a separate file without the rest of the appartment and with new vray light, subdivision=40, and the rest of procedures as they are, I get what I want, no noise at all, and the render time is not too bad.

 

I think this problem had to be solved (like what you said my friends); is to raise the subdiv. in light cach+subdiv. in vray light, cause the kitchen was opened to the entrance and dining (large space), so what I was set wasen't enough to make good smooth surfaces, this is my guess:rolleyes:

 

Anyhow, thank to all of you my friends, especially "Brian Smith" who answerd me immediately after sending to him an email, I'm appreciating this too much;)

 

I hope to finish this animation soon to let you see it.

[tayrona]

Hey, very nice to get the trouble solved... How is a "render time not to bad" for you?? which hardware?

[shikodesign2000]

Thanks Diana for your feelings, in fact this is my first interior animation with vray, so it takes long time from me, many things had to be experiment, ofcourse next projects mustn't take this time, cause there's no client will wait:D

 

Anyhow, my present pc is p4 3gega hz, 2gega ram, not too strong, I know, I'm intending to buy another one (core 2 duo) with higher rams 4 gega for example, my pc now render every final frame at average in 7 to 12 minutes.

 

The hero in animation game is the strong engines, ofcourse after science and art.