instancing BUG!

3D Studio Max Plugin (Export Script Plugins developed by [gk] and KilaD; Integrated Plugin developed by Karba)
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gabrielefx
Licensed Customer
Posts: 1701
Joined: Wed Sep 28, 2011 2:00 pm

Hi guys,

I pushed Octane for Max to the limits

With these print-screens I want to show you that exaggerating with instances Octane loses texture references

In these scene I have:

500 objects manually instanced
759 trees scattered with Forest Pack Pro then instanced (4 multi sub mats, all mats are mixed maps)
28.808 grass carpets scattered with Forest Pack Pro then instanced (6 multi sub mats, all maps are mixed maps)

You can notice that using about 1300 instances every texture is ok, if I turn on the grass carpets we will get strange effects.

Regards
Attachments
instances_bug1.jpg
instances_bug2.jpg
instances_bug3.jpg
quad Titan Kepler 6GB + quad Titan X Pascal 12GB + quad GTX1080 8GB + dual GTX1080Ti 11GB
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mbetke
Licensed Customer
Posts: 1294
Joined: Fri Jun 04, 2010 9:12 am
Location: Germany
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THe last texture seems to be some kind of distribution map from forest pro and maybe the color variation mat which has been loaded too but is not in use.
I never had a negative polycount experience.
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Sys: Intel Core i9-12900K, 128GB RAM, 2x 4090 RTX, Windows 11 Pro x64, 3ds Max 2024.2
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gabrielefx
Licensed Customer
Posts: 1701
Joined: Wed Sep 28, 2011 2:00 pm

Forest Pack pro texture variations don't work with Octane, only in vray and mr.
All Instanced grass objects have the same texture.
As you can see the textures building are affected by the increased number of instances.
Now I reduced the instances from 28000 to 10000 and now is ok.
It's an Octane bug.
quad Titan Kepler 6GB + quad Titan X Pascal 12GB + quad GTX1080 8GB + dual GTX1080Ti 11GB
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Karba
OctaneRender Team
Posts: 2300
Joined: Sat Jun 11, 2011 9:05 am

gabrielefx wrote:Forest Pack pro texture variations don't work with Octane, only in vray and mr.
All Instanced grass objects have the same texture.
As you can see the textures building are affected by the increased number of instances.
Now I reduced the instances from 28000 to 10000 and now is ok.
It's an Octane bug.
I did a test with 40.000 objects. Did not have such issue. Can I have your scene? [email protected]. But I don't have Forest Pack.
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mbetke
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Posts: 1294
Joined: Fri Jun 04, 2010 9:12 am
Location: Germany
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YOu dont need forest pack or just can use the free version.

After distribution with forestpack all objects are instanced and just models like if placed with hand.
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Sys: Intel Core i9-12900K, 128GB RAM, 2x 4090 RTX, Windows 11 Pro x64, 3ds Max 2024.2
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