Messages

16

[Max] I need help! / Re: HD Success rate and noise in corona 1.4

« on: 2016-05-18, 17:24:52 »

I'm not expert like Juraj, but with adaptivity, Corona will spend less time on "easy" surface/shaders, and he will concentrate his energy on the most difficult areas.
That's why, with adaptivity ON, simple flat surface have more noise. But, at the same time, complex areas (DOF, MBlur, heavy glossy surface) will be much more clean (in the same rendertime)

In my opinion, if your "complex" area s aren't too much (like 10% of your image), maybe, it's better to turn off adaptivity...
But, we have no parameters for to tweak the adaptivity. Or ON, or OFF... And adaptivity recalc doesn't change a lot the final result.

I would like to hear some official Corona answer ))

I am not an expert neither,  but I would like to know what am I doing instead of testing. I found these new features quite interesting, for some of the guys might absolutely worthy, not for me yet, as I am not playing much with DOF and so... What I would really like to have in Corona - more flexibility and real improvements for sampling, probably material subdivisions,  better lighting behaviour. So far the guys made absolutely stunning job. By the time Corona will come to 3.3 version I am sure it will be an absolute winner.

17

[Max] I need help! / Re: HD Success rate and noise in corona 1.4

« on: 2016-05-18, 16:19:19 »

I am really surprised as I am feeling that something is wrong. I hate do not understand what happens every time I do something. Again can anyone tell what is this adaptivity, how this algorithm works, why the result is opposite than you expect? Jurai, you are the most experienced guy in Corona, could you explain how this relates to samples? I am still in the dark and hate guessing even though there is a result but the most important question is Why?
I can only guess again that is making the noise more obvious and easier to detect and clean by denoiser

18

[Max] I need help! / Re: HD Success rate and noise in corona 1.4

« on: 2016-05-18, 15:59:10 »

Well, I am glad to see these results. As I have mentioned below I am not considering the denoiser serious untill I could prove this really. For the images 600X600 or thumbnails probably it is ok but for prints like 8000 this is not a solution. There are much more powerful denoisers for still images like Imagenomic Noiseware , I just mentioned Neat for instances as it is powerful cleaning the noise in Video sequences. Again I am not going to go in comparison Corona VS Neat or REd Giant or anything, these are too different products with different purposes to be compared to.  tBut the reason I have raised this questions

I do not want to trick the result, the render should be clean without using denoisers as they are cleaning picture by blurring pixels which is not accurate( for different purposes though). Whatever regarding to my researches here is the result after turning the adaptivity off: The HD success rate raised to 41 and the noise is almost gone after 100 passes which gives about 30 % performance. Below is the result in comparison.
Render time for 150 passes Adaptivity on 1h18 min  Adaptivity off 1h 04 min,

19

[Max] I need help! / Re: HD Success rate and noise in corona 1.4

« on: 2016-05-18, 13:43:04 »

Just  a test - taking down the reflection in the material did nothing to the HD success rate   still tough the level of noise has not change much. I am not really sure how the Adaptivity works - is it similar to Vray, like raising more samples in the difficult areas? As long I understood from the actual post regarding Adaptivity/ Denoising the samples are brought from the other areas, weakening them( pouring the quantity) Is that correct?  What this figure 5 in the box  means ? 5 samples? 5subdivisions? a relative number?

20

[Max] I need help! / Re: HD Success rate and noise in corona 1.4

« on: 2016-05-18, 12:06:02 »

I pondered upon this too, as this applies to lot of my (surprisingly interior) scenes as well. It's usually glass and metallics. Previously HDCache (deprecated) had threshold up to which it would work.

Yeh, There is a hell lot of Golden heavy details and glass chandeliers.

I just realised that the soft furniture using faloff in diffuse is clean after 10 passes, but I still have noise on the wall which is only diffuse with sight reflection/ glossiness  , just semi matt  paint. Any suggestions regarding this? Is this a normal behaviour? Actually this noise still persist in GI pass while the other passes are pretty clean. Increasing the GI it will decrease AA and I have a lot of reflective edges which at certain point start flickering.

Thanks guys

21

[Max] I need help! / HD Success rate and noise in corona 1.4

« on: 2016-05-17, 18:56:37 »

Hi, Guys! Congrats with new version of Corona renderer. I am rendering an animation in Corona. It is an interior but very heavy one with heavy proxy the polygon amount is almost 40 mln in already optimized scene. Trying to cut render time down to a reasonable one, something like 1hour on 2Xeon 32 cores. Still there is noise mostly in the GI pass. For the moment I have AA/GI on 20/4 MSI 11
The HD success rate is very low. What could cause that? What is the relation between success rate and amount of geometry/lights/reflections? The number of rays is ok IMHO 6.5 mln is ok isn't it?
Whatever I will really appreciate for some advise /help. I don't want to use denoiser as this is bluring the image and washing the clean sharp details, after testing I did not find any difference between Corona denoiser and Red Giant denoiser or Neat video plugins, except is fully integrated in Corona and doesn't need to buy additional expensive plugins. Sorry I can not attach the full image and the scene due to copyrights and NDA.

22

[Max] I need help! / Re: Vray_camera incorrectly behaving

« on: 2015-11-19, 16:20:33 »

Sorry guys to disturb again but seems the bug has not been resolved. Rendering animation - saving cash and final rendered frame are different. Vray camera is resolved in the final frame but in the cash - is still distorted. I don't know how far will affect the animation itself but I assumed this is the bug and it could delegate issues.

23

[Max] I need help! / Re: Vray_camera incorrectly behaving

« on: 2015-09-29, 17:16:12 »

Offcourse is view. You might be laughing but in the render processing tab the render progress is the upside down- from the  right  to LEFT. It is kind of black magic. Maybe woodoo.

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[Max] I need help! / Re: Vray_camera incorrectly behaving

« on: 2015-09-29, 16:25:18 »

Sorry if I wasn't clear enough. Looks like camera is much more far away than it is in the vewport safe frame window. You can see vray camera settings in the first post- there is no distortions or zooming issues. Vray renderer camera ok . Look below. Scanline same no issues

25

[Max] I need help! / Vray_camera incorrectly behaving

« on: 2015-09-29, 15:19:25 »

Hi all

I found this bug wile trying to sort out the camera perspective. The actual render looks much far away then the image in viewport. I just have broken my mind trying to find out what is it causing it. The standard camera is alright.
 

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[Max] Resolved Bugs / Re: Render doesn't stop after cancelling

« on: 2015-08-10, 13:16:40 »

Maybe this?
https://coronarenderer.freshdesk.com/support/solutions/articles/5000570006

Thanks a lot. It was not a bag, but the human factor, my bad. Never realized that this could cause such problems.

27

[Max] Resolved Bugs / Render doesn't stop after cancelling

« on: 2015-08-10, 10:21:15 »

Hi guys. I have a scene with assigned Corona render and after passing the 8 hours time and completing the task Corona start rendering the same frame again and again. Trying to cancel the render I discovered that Corona does not stop either. It is starting again and again. Single frame is checked in the common settings and there is no batch render assigned. It is stopping after only clicking continuously many times on the cancelling button.  Corona 1.01.00, 3dMax design 2015

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[Max] I need help! / Re: Depth of field issues with reflections

« on: 2015-08-05, 12:50:06 »

And in the second picture these are (nearly-)spherical reflections. They work completely different.

This is what I am trying to figure out. Sorry if I sounded like a dumb. Thanks a lot for your help as it has cleared  a lot of my dark patches. I do my apologies guys for taking your time.

29

[Max] I need help! / Re: Depth of field issues with reflections

« on: 2015-08-03, 15:49:15 »

Just a confirmation for those who like me needs an oculist visit. Those whos got a perfect vision please ignore my post

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[Max] I need help! / Re: Depth of field issues with reflections

« on: 2015-08-03, 15:36:02 »

Thanks, Maru. I will definitely follow your helpful advice.