Octane failed rendering a big scene

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Octane failed rendering a big scene

Postby PaGz » Mon Oct 25, 2021 4:09 pm

PaGz Mon Oct 25, 2021 4:09 pm
Hello :)

I am looking for solutions for my project.
Octane is failed rendering a scene with no textures but zillions of geometry. ( 10 buildings destroyed )

All my dynamic simulations are cached in a single one.

I have a RTX2080 TI with 11 gig memory.

The rendering is starting and take very long time to load the scene in gpu then Houdini crash after about 40 mins :(

I really don't know how i can optimize the scene more than what i did..

Does packing can help? or activating out of core (64 gig RAM on my system )

Thanks
PaGz
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Re: Octane failed rendering a big scene

Postby PaGz » Mon Oct 25, 2021 4:11 pm

PaGz Mon Oct 25, 2021 4:11 pm
Here is the visual..
Attachments

[ Play Quicktime file ] 10_Shot_Golgoth_Landing.mp4 [ 11.82 MiB | Viewed 2270 times ]

[ Play Quicktime file ] 06_Shot_Golgoth_Landing_Witness.mp4 [ 9.58 MiB | Viewed 2270 times ]

PaGz
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Re: Octane failed rendering a big scene

Postby juanjgon » Mon Oct 25, 2021 4:17 pm

juanjgon Mon Oct 25, 2021 4:17 pm
Enabling the out-of-core feature is going to help for sure, but you should also be aware that there are limits about the amount of geometry that a single OBJ node can handle.

If you are working with OBJ nodes including several millions of polygons you should think about breaking it into several additional OBJ nodes, importing a set of data into each one. This has two advantages: avoid reaching the Octane limits in the number of data that a single OBJ node can handle, and improve the scene extraction time due to the multi-thread scene extraction feature, which can split the expansion of several OBJ nodes among all your CPU cores.

Hope it helps,
-Juanjo
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Re: Octane failed rendering a big scene

Postby PaGz » Mon Oct 25, 2021 5:57 pm

PaGz Mon Oct 25, 2021 5:57 pm
Thanks Juanjgon!

I will try that :)

Please tell me the limit per obj node?

I will give you feedback!

Best
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Re: Octane failed rendering a big scene

Postby juanjgon » Mon Oct 25, 2021 6:23 pm

juanjgon Mon Oct 25, 2021 6:23 pm
It is hard to say because it depends on the number of UV maps, user attributes, etc. but I'm sure that a single OBJ node with let's say 50 MPolygons could fail, and the scene extraction time can be very slow.

Thanks,
-Juanjo
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Re: Octane failed rendering a big scene

Postby PaGz » Mon Oct 25, 2021 7:09 pm

PaGz Mon Oct 25, 2021 7:09 pm
Thanks again Juanjo!

Now i can render with the IPR! :)

I will now try to render all the sequence.

Best!
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Re: Octane failed rendering a big scene

Postby PaGz » Mon Oct 25, 2021 7:32 pm

PaGz Mon Oct 25, 2021 7:32 pm
Yay!!!

Thanks you so much!
Attachments
Golgoth_Landing_Witness1.jpg
PaGz
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Re: Octane failed rendering a big scene

Postby juanjgon » Mon Oct 25, 2021 9:14 pm

juanjgon Mon Oct 25, 2021 9:14 pm
Great! I'm glad your scene can be rendered now.

Thanks,
-Juanjo
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Re: Octane failed rendering a big scene

Postby PaGz » Tue Oct 26, 2021 4:37 pm

PaGz Tue Oct 26, 2021 4:37 pm
I've been able to render all the frames last night :)
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