Render gets stuck - volumetrics excessive ray weight

[Nik]

Well, obviously the problem is scene related.

To find a reason you can do some things (if you can't share a scene).
At first disable all Xrefs and try to render. If problem is gone - then some Xref generating it, if not - you need to reset CoronaSettings and render again.
I'm not telling that if the problem is in Xref then it's not a bug :) definetely it is. But you need to share a scene or investigate...

I know only one method to find a reason - exclude suspects. Maybe somebody heard about this issue and will post here some advice, but I didn't unfortunately.

[CiroC]

I know I am doing that. But, no I can't share the scene. Besides the scene is already 25GB, so is quite a lot. I will share here what I find. Thanks Nik for your moral support. :D

[sevecek]

Can you send me Corona logs? They should be in C:\Users\Your_Username\AppData\Local\Autodesk\3dsMax\Some_Max_Version\ENU\en-US\plugcfg\corona
Is your CPU still on 100% when the render gets stuck?
It could also help to have a look at sampling focus render element, just in case adaptivity is doing something weird.

[CiroC]

Thanks seveck for replying.

I am sending the logs. The last log is another scene I rendered overnight, but if helps I can render the scene that is giving me issues tonight with the Sampling Focus render elements as you mentioned.

No, the CPU is like 8% when the render gets stuck, which shows me that Corona\3ds Max isn't rendering. That is what I find really weird.

[Ondra]

can you post a minidump of the 3dsmax process when it happens?

[CiroC]

can you post a minidump of the 3dsmax process when it happens?

Yes Sir. I will tried again tonight

[CiroC]

Some updates:

Uploaded Corona Logs

Uploaded Capture -

I set the render for 24 hours or 2% noise level. Now if you see the time of render and the Remaining time it doesn't match. Besides the Remaining Time is stuck.

Upload mini dump
Using Dropbox. It has my name on it.

[Ondra]

Some updates:

Uploaded Corona Logs

Uploaded Capture -

I set the render for 24 hours or 2% noise level. Now if you see the time of render and the Remaining time it doesn't match. Besides the Remaining Time is stuck.

Upload mini dump
Using Dropbox. It has my name on it.

Hi,
thanks for the minidump, it was very helpful. One of the rendering threads got stuck in rendering loop, where it just infinitely casts additional rays but never finishes rendering its assigned pixel. This can be caused by a bug in Corona, bad scene geometry/materials, or combination of both. This is happening only in single scene, right? Can you upload the scene to us? Without it this is nearly impossible to fix. The dropbox uploader can take unlimited data and we will keep the scene private - we are routinely handling heavily NDA debug data.

[CiroC]

Thanks Ondra. I am preparing the files for you. I still need to get authorization to upload the scene.

[SARCASTIC]It seems we are working on NSA super secrets and the supreme commander is only available next Tuesday.[/SARCASTIC]

[Ondra]

did you get the authorization yet?

[CiroC]

did you get the authorization yet?

I was away for a couple of days. I am back tomorrow and I will see if the our dear leader allows that.

[Ondra]

from the way you speak I am starting to wonder who do you work for... North Korea? :D

[CiroC]

from the way you speak I am starting to wonder who do you work for... North Korea? :D

:D Almost. Isn't far in terms of ideology and politics. Still waiting. I guess we may to sacrifice someone in order to make it

[CiroC]

Ondra I am uploading the scene. Is around 4GB.

[Ondra]

note to self:
Ciro Cardoso - M4.7z


great, thanks! Expect this to be fixed in 1.7 ;)