35 .ass.gz procedurals taking very long to initialize before render because it is single threaded.

[goddy.roodt]

Hi All!

To keep it simple. I have 35 written trees .ass.gz procedurals.They are animated. they are each about 60meg a .ass.gz

I have 35 arnold procedural nodes in houdini that load in the trees, when i hit render, i wait about 8-10 minutes before rendering begins, and i noticed that only a single thread is being used to prepare the scene for rendering.

Is this unfortunately how arnold works? or is there a way for me to better write out my .ass files so that preparing the scene for rendering is multithreaded?

I have noticed from my other scenes that big geo, 500meg and ass loads way faster if its just one big mesh. It seems because i have thousands of leaves this may cause the slow initialization even if the ass file is small.

Regards

G

[frederic.servant · Accepted solution]

This looks like a regression we recently fixed, which version of Arnold / HtoA are you using?

[goddy.roodt]

Hi @Frederic Servant Thank you for the answer,

both use arnold 5.2.0.0

we were using htoa-3.0.3_ra077233_houdini-16.5.496

that is what i did the trees on,

and now moved to htoa-3.1.0_r84666ac_houdini-16.5.496

was the fix done on 3.1.0, and if yes, should i re-write all my ass files? or replace my arnold rops, what must be replaced in order for my scene to make use of the potential fix

Regards

G

[Stephen.Blair]

Can you post a log that shows the Arnold time stats?

[goddy.roodt]

Impressed!

It has been fixed in the latest version, thanks guys 🙂