Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: mgolden on 2014-08-28, 00:46:14

Title: Backburner Problems
Post by: mgolden on 2014-08-28, 00:46:14

I'm having trouble submitting jobs to backburner.  If I send the job to any of my render slaves, the job picks up, but gets stuck on "parsing the scene."  If I look at the Backburner Server log, it looks like it is trying to render with Vray.  (Log Screen shot attached).  Any help or thoughts would be appreciated.

Thanks so much.

mike.

Title: Re: Backburner Problems
Post by: juang3d on 2014-08-28, 01:29:14

Nope, it just loads vray as always, but it will render with corona if you have corona configured.

BUT if it stops parsing the scene, check the ram comsumption of the scene, I had problems in my farm also with this, even the computers stop working because corona eated all the system ram up to 99%, after a while (a big while) backburner gave an error, and after a lot of time max responded and was killed.

Hope this helps you.

Cheers.

Title: Re: Backburner Problems
Post by: mgolden on 2014-08-28, 01:41:32

Thanks Juang.  That doesnt seem to be the problem.  RAM stays below 2GB (32GB installed on machine), and Corona itself seems to be installed fine because if I distribute to the slave, it picks up and seems to work properly.

Title: Re: Backburner Problems
Post by: juang3d on 2014-08-28, 02:08:11

what happends if you send a simle scene? teapot+plane?

Cheers.

Title: Re: Backburner Problems
Post by: mgolden on 2014-08-28, 02:24:18

interesting.  if i send just a plane and teapot, it renders.  if i send anything complex, it sticks on parsing, with the RAM stuck somewhere just under 2gb.  any ideas on whats going wrong here?  the scene that i am sending isnt overly complex, if i send it locally to my workstation peaks at about 2.5gb.

Title: Re: Backburner Problems
Post by: juang3d on 2014-08-28, 02:55:37

Try to enable the debug options in corona, and then try to change the Acc. Structure to "BVH full SAH", see if that helps, I had some problems in the past and that helped to make it through.

Cheers.

Title: Re: Backburner Problems
Post by: mgolden on 2014-08-28, 16:06:31

Still not getting past the parsing the scene step on the node.  The RAM usage did increase to about 5.5gb with that change though, which is about how much the scene takes up while open normally in max.

Title: Re: Backburner Problems
Post by: mgolden on 2014-08-28, 16:18:27

And I'm not sure if this is pertinent information or not, but I am also finding that if I distribute to that slave, it picks up and renders, but the brightness of the returned passes comes out different in bands.  See attachment.

Title: Re: Backburner Problems
Post by: juang3d on 2014-08-28, 18:39:42

Check if that node can correctly access all the textures, maybe there is a problem with that.

Cheers!

Title: Re: Backburner Problems
Post by: mgolden on 2014-08-28, 18:41:30

it can.  the textures are there, but the brightness appears off.  ive been distributing and sending jobs via vray to it for months without any issues.

Title: Re: Backburner Problems
Post by: juang3d on 2014-08-28, 18:54:07

Try to render it via command line in that node, maybe you will see the problem that way, it's strange for sure :P

I've rendered an entire project in my farm without any big issues (apart from scenes that doesn't fit in ram)

Another idea, put a grey material to all the scene and try to render it, remove also environment lighting, use just white or corona skyl maybe there is a material generating a problem.

Cheers.