Faster object tree building (instancing)

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OnoSendai
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Faster object tree building (instancing)

Post by OnoSendai » Fri Oct 02, 2015 3:10 am

Hi all,
I sped up the object tree building, it's 6x or more faster now.
Here are some scattered Lucy models to demonstrate:

I also fixed the triangles count in the UI so it could show the total number of triangles correctly :)

Num instances: ~3.8 M
Num triangles per instance: ~28M
Total number of triangles: ~106 trillion triangles :)

Scene build times:

Lucy scatter test
==============
Old (v3.8.26)
----------
Finished building tree. (Time taken: 35.209 s)
Finished initialisation (Time Taken: 68.02 s)

New (v4.0.x)
-------
Object tree build done. (Time Taken: 5.334 s)
Finished initialisation (Time Taken: 25.40 s)
Attachments
scene_info.JPG
lucy_scatter_test.jpg

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Juju
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Re: Faster object tree building (instancing)

Post by Juju » Fri Oct 02, 2015 3:13 am

some speed-up that is
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CTZn
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Re: Faster object tree building (instancing)

Post by CTZn » Fri Oct 02, 2015 4:25 am

Oh yeah !
obsolete asset

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Oscar J
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Re: Faster object tree building (instancing)

Post by Oscar J » Fri Oct 02, 2015 5:19 am

:shock:

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pixie
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Re: Faster object tree building (instancing)

Post by pixie » Fri Oct 02, 2015 6:05 am

I can smell a 4 being cooked from afar! xD

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Re: Faster object tree building (instancing)

Post by zeitmeister » Fri Oct 02, 2015 6:40 am

Oh holy moly!!!


Cheers, zeiti
Cheers, David



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Zom-B
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Re: Faster object tree building (instancing)

Post by Zom-B » Fri Oct 02, 2015 7:05 am

Awesome, faster object tree building + your faster subdiv will kick in nicely for me, thanks a lot for that!
polygonmanufaktur.de

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OnoSendai
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Re: Faster object tree building (instancing)

Post by OnoSendai » Fri Oct 02, 2015 8:32 am

19 M instances.
Attachments
scene_info2.PNG
scene_info2.PNG (3.82 KiB) Viewed 5544 times
lucy_scatter_test2.jpg

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Oscar J
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Re: Faster object tree building (instancing)

Post by Oscar J » Fri Oct 02, 2015 8:42 am

Would be fun to use Lucy as grass in an arch viz shot just to see if the client notices anything. :)

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Re: Faster object tree building (instancing)

Post by zurkdahool » Fri Oct 02, 2015 8:42 am

crazy and amazing! very nice! btw.: thank you for the shot :lol:
lucy_scatter_test2.jpg

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Re: Faster object tree building (instancing)

Post by zeitmeister » Fri Oct 02, 2015 7:17 pm

Oscar J wrote:Would be fun to use Lucy as grass in an arch viz shot just to see if the client notices anything. :)
ROFL!!!


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Re: Faster object tree building (instancing)

Post by Zom-B » Fri Oct 02, 2015 7:32 pm

OnoSendai wrote:19 M instances.
I'd like to see how far this can be pushed with lets say 32GB of RAM in a system :)
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Oscar J
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Re: Faster object tree building (instancing)

Post by Oscar J » Fri Oct 02, 2015 9:29 pm

Yeah, was just saying. Would be cool to hit a quadrillion! :)

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Re: Faster object tree building (instancing)

Post by OnoSendai » Sat Oct 03, 2015 3:55 am

Zom-B wrote:
OnoSendai wrote:19 M instances.
I'd like to see how far this can be pushed with lets say 32GB of RAM in a system :)
That's already pushing the RAM quite far (on my 32GB system). I'll try and optimise mem usage a bit and get to 1 quadrillion :)

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Re: Faster object tree building (instancing)

Post by OnoSendai » Sun Oct 04, 2015 1:43 pm

Did some more optimisations:

Object tree build done. (Time Taken: 4.027 s)
(was 5.3s in the original post above).

Think I need to stop now... :)

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