Chaos Corona Forum
Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: arqrenderz on 2023-03-17, 21:20:15
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Hi, I have a not too big scene with a big problem.. I cant render it using displacement if i have the forest on. WILL eat 128gb of ram..
All the terrain has a corona layer material with displacement (composite displacement and masks)
The scene only has the terrain and the forest objects
Scenario were it works:
Displacement on, terrain isolated OK
Displacement on, all the itoo forest objects Isolated OK
Displacement on, all the itoo forest objects WITH a different surface terrain that the one with displacement OK
Scenario NOT working:
Displacement on, terrain and forest objects visible NOT working
Corona 9.1
Max 23.3
Ryzen 7950x 128gb Ram
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Hi,
Are you using screen or world displacement here?
I would suggest that you increase your displacement size, as setting it too low could cause high RAM consumption.
Cheers,
Rowan
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Hi, im using screen size of 15. But the ram usage keeps going to 100% (128gb)
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Are you by any chance rendering from an orthographic camera? If yes, then try switching to regular perspective mode.
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Two more questions:
- your objects scattered with Forest - are they using a material with displacement?
- your objects scattered with Forest - are they using a multi/sub material?
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Hi, Yes my objects are scattered with Itooforest, those objects Dont have displacement, yes they have a Multi/sub material. (most of them are trees and shurbs form maxtree)
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After countless hours trying to solve the problem the culprit was a corona Decal, is a big decal covering the terrain with an opacity map that only shows a path were i want the decals to show. The problem i think is that the decal that has displacement in it is computing the whole project... So no decal and extra detail for this time!
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I may not understand 100% - could this because the decal was getting applied to the scattered trees too, since it affects all objects it overlaps/intersects? If you set the decal to have an Include list and only affect the terrain, does that help?
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I may not understand 100% - could this because the decal was getting applied to the scattered trees too, since it affects all objects it overlaps/intersects? If you set the decal to have an Include list and only affect the terrain, does that help?
Hi!
I had the same problem and excluding the Forest objects from the decals didn't worked out.
I've found that in any conditions, the mix of Forest + Decals on them is a kill.
Thanks,
Dionysios -
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Hi @Dionysios.TS @arqrenderz
is it possible for either of you to send us a ticket along with a simplified version of your scene and some repro steps so we can investigate the issue further?
You can start a ticket with us using this link: https://support.chaos.com/hc/en-us/requests/new
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Hi @Dionysios.TS @arqrenderz
is it possible for either of you to send us a ticket along with a simplified version of your scene and some repro steps so we can investigate the issue further?
You can start a ticket with us using this link: https://support.chaos.com/hc/en-us/requests/new
Sure, I need to finish a job first (a day or two) and then I'll be back with the ticket and a file example if is necessary.
Dionysios -