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Author Topic: Compiling Geometry  (Read 726 times)


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Compiling Geometry
« on: April 20, 2018, 10:49:47 PM »
I have a large scene and it takes awhile to compile the geometry, about 10 minutes. The problem is, I can stop it while it is compiling and the Choas folks say that it might be a FP think. Something about you having access to the stop function and it is up to you to use it.


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Re: Compiling Geometry
« Reply #1 on: April 21, 2018, 09:14:49 AM »
Hi, even for huge scenes, 10 minutes seems an excessive time for Forest. The scattering process for a large distribution (with millions of items) should not take more than a few seconds.
As far as i remember, the only feature which may take a long time is Collisions. If you are using Collisions on large areas, i suggest to disable it and try a different approach.

But probably there is something more that is causing the delay.
Please, try to reproduce the problem in a minimal scene (deleting all objects not needed for Forest) and send us the files. We'll take a look to it.

Carlos Quintero
iToo Software


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Re: Compiling Geometry
« Reply #2 on: April 21, 2018, 04:37:10 PM »
I think it has more to do with V-Ray and displacement. When I globally turn off displacement the issue is gone.


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Re: Compiling Geometry
« Reply #3 on: April 21, 2018, 05:52:18 PM »
Displacement, especially on a huge scene, cannot only slow things down significantly, but I've had the render fail completely and crash the system due to running out of memory and I have a 32Gb. I tend not to use displacement much, especially for exterior shots, where most of the stuff that would use it, is so far away, the added detail, just wouldn't be that noticeable and a decent bump/normal map is more than sufficient.