Author Topic: Cant render with displacement enabled and itoo forest..  (Read 894 times)

2023-03-17, 21:20:15

arqrenderz

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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


2023-03-21, 15:59:22
Reply #1

rowmanns

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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
Please read this before reporting bugs: How to report issues to us!
Send me your scene!

2023-03-21, 16:12:11
Reply #2

arqrenderz

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Hi, im using screen size of 15. But the ram usage keeps going to 100%  (128gb)

2023-03-21, 17:34:16
Reply #3

maru

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Are you by any chance rendering from an orthographic camera? If yes, then try switching to regular perspective mode.
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2023-03-21, 17:43:36
Reply #4

maru

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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?
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2023-03-21, 20:23:23
Reply #5

arqrenderz

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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)

2023-03-23, 14:48:34
Reply #6

arqrenderz

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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!

2023-03-23, 17:15:41
Reply #7

TomG

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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?
Tom Grimes | chaos-corona.com
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2023-06-18, 02:24:27
Reply #8

Dionysios.TS

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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 -

2023-06-19, 20:49:17
Reply #9

Avi

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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
Arpit Pandey | chaos-corona.com
3D Support Specialist - Corona | contact us

2023-06-19, 20:57:27
Reply #10

Dionysios.TS

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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 -