question

Erik Lundborg avatar image
Erik Lundborg asked ·

HtoA inconsistent render times

I'm rendering with HtoA on deadline right now and am having problems with the same rendernodes having different rendertimes. Rendertime right now seems to differ from about 5-10 minutes on a frame to 2-2,5 hours. The frames look completely similar and the only reason i've found seems to be a something called InitializeNodes in the deadline log. Does anyone know what Arnolds InitializeNodes does and where or how i can fix it?

Logs here

https://we.tl/t-dXLJwTAI5U

renderhtoarender farm
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Erik Lundborg avatar image
Erik Lundborg answered ·

Thank you for replying! I will try to get an update but could be hard in the middle of a project. It just seems so strange that the same rendernode will differ 2 hours in rendertime between 2 frames that have nothing added or taken away.

1 comment Share
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

You could also try disabling options.parallel_node_init until you upgrade to a newer arnold. That of course can make that stage slower since it's just using a single CPU core, but compared to the huge slowdown you're sometimes getting, you'll probably still be much faster.

0 Likes 0 · ·
Thiago Ize avatar image
Thiago Ize answered ·

It's possible this has been fixed in a newer version of Arnold. For instance, Arnold 5.3.1.1 has the following fix:

"Node initialization does not scale when there are procedurals that create many nodes".
I would suggest upgrading to at least this version and if it's still slow, try the very latest.
Share
10 |600 characters needed characters left characters exceeded

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Write an Answer

Hint: Notify or tag a user in this post by typing @username.

Up to 5 attachments (including images) can be used with a maximum of 2.0 MiB each and 9.8 MiB total.

Welcome to the Arnold Answers community.

This is the place for Arnold renderer users everywhere to ask and answer rendering questions, and share knowledge about using Arnold, Arnold plugins, workflows and developing tools with Arnold.

If you are a new user to Arnold Answers, please first check out our FAQ and User Guide for more information.

When posting questions, please be sure to select the appropriate Space for your Arnold plugin and include the plugin version you are using.

Please include images, scene and log files whenever possible as this helps the community answer your questions.

Instructions for generating full verbosity log files are available for MtoA, MaxtoA, C4DtoA, HtoA, KtoA, and Kick.

If you are looking for Arnold Documentation and Support please visit the Arnold Support site.

To try Arnold please visit the Arnold Trial page.

Bottom No panel present for this section.