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General => Terragen Discussion => Topic started by: bla bla 2 on November 23, 2016, 02:21:44 PM

Title: Terrain in fbx big complex very heavy.
Post by: bla bla 2 on November 23, 2016, 02:21:44 PM
Hello, when I import a terrain in fbx or obj. Why, this make crashe terragen ?
The file To weigh 1.6Go. ;D
Title: Re: Terrain in fbx big complex very heavy.
Post by: Oshyan on November 23, 2016, 05:24:05 PM
Terragen does not load FBX object files. Do you mean *export* rather than *import*?

- Oshyan
Title: Re: Terrain in fbx big complex very heavy.
Post by: Aerometrex on November 24, 2016, 08:41:33 PM
It depends on how much RAM you have.

I routinely load few GB of OBJ for my scenes. This is actually one of the main reason I use Terragen.
Title: Re: Terrain in fbx big complex very heavy.
Post by: bla bla 2 on November 25, 2016, 11:07:40 AM
Quote from: Oshyan on November 23, 2016, 05:24:05 PM
Terragen does not load FBX object files. Do you mean *export* rather than *import*?

- Oshyan

No, just import. ;) but when I Import a ( obj ) this crash terragen.

Quote from: Aerometrex on November 24, 2016, 08:41:33 PM
It depends on how much RAM you have.

I routinely load few GB of OBJ for my scenes. This is actually one of the main reason I use Terragen.


I'm, 32GRam. IT would surprise me Be it RAM.
Title: Re: Terrain in fbx big complex very heavy.
Post by: Oshyan on November 25, 2016, 09:47:37 PM
Strange, I don't know why it would be crashing. What is the source of this huge object?

- Oshyan
Title: Re: Terrain in fbx big complex very heavy.
Post by: digitalguru on November 30, 2016, 06:48:51 AM
Have you checked your geo? As Oshyan says, obj is currently the most reliable way to import geo from an external 3d app.

Often times the geo is "dirty" and should be cleaned before import, for instance when exporting geo as an obj from Terragen, each vertex is duplicated, and verts can be merged reducing file size drastically.

On the whole though, I'm very impressed with the way handles large amounts of geo, and provided it's clean, I've not had any issues in the past.

Also does you terrain have UV's? If you plan to use your imported geo with Terragen's procedural textures you will not need UV's and they can be deleted on the source object before import.

Checking for those issues could reduce file size significantly (I've seen reductions from files the same as yours - 1.6gb to about a fifth of the size)

Might help you with your import instability issues.