Page 1 of 2

ArchiCAD (Export .obj) and Octane...just a dream ???

Posted: Tue Feb 21, 2012 2:46 pm
by Archi.69
Hello everyone, first of all, and I apologize in advance for my english...

I wanted to try Octane on a model exported from ArchiCAD 14 and 15 in .obj

but the last demo of Octane is always crash when opening the file !

I tried a file .obj from demo suite (Benchmark) with no problem open and execute the render ...

So it is probably a problem of ArchiCAD to export to .obj ???

Has anyone done tests using ArchiCAD as a modeler ?

My PC is recent: 2600K i7 + Asus P8Z68-V Pro + VGA Asus GTX 560 Ti 1 GB Ram + 16 GB Corsair DDR3 1600 MHz + etc.

Thanks in advance for votre comments and tips about it !!!

Re: ArchiCAD (Export .obj) and Octane...just a dream ???

Posted: Tue Feb 21, 2012 3:01 pm
by stiwi
Hi,

I have done so and it works quite ok. Sometimes it seems that Archicad does something with the surfaces so applying textures properly doesn´t always work.

It seems to me that you have to look after your filenames and materialnames. Make sure there are only ASCII-signs in it. Even Archicad objects sometimes have names with non-ASCII-signs.

Good luck.

stiwi

Re: ArchiCAD (Export .obj) and Octane...just a dream ???

Posted: Tue Feb 21, 2012 3:24 pm
by Archi.69
Hello and thanks for the reply,

Unfortunately I always crash when I try to open a file .obj product ArchiCAD

... so I do not know what to do ...

I think we ArchiCAD users can not hope to use Octane for now ... it seems to work better in the export .3ds ...

When I open a file of the demo suite, always .obj, (for example : chess, benchmarks, etc..) I have no problems !!!

Is there anyone among you who regularly use ArchiCAD and Octane ???

Thanks again

Re: ArchiCAD (Export .obj) and Octane...just a dream ???

Posted: Tue Feb 21, 2012 4:24 pm
by stiwi
Did you check filenames, etc? I think they worked on the tolerance for Non-Ascii-Signs but I´m not quite sure how far it is.

Try to make a very simple scene, one wall is enough actually. Make sure that material, object and file are clean and try again.

Good luck!

Re: ArchiCAD (Export .obj) and Octane...just a dream ???

Posted: Tue Feb 21, 2012 4:55 pm
by Archi.69
Thank you,

I wil try it...again...and i will tell you about...

Have nice time

Re: ArchiCAD (Export .obj) and Octane...just a dream ???

Posted: Tue Feb 21, 2012 4:56 pm
by stiwi
Well - I just made a simple example myself. And - it didn´t work!

Don´t know why. It´s been a while now, maybe my memory was wrong there. Sorry if I mislead you.

If you happen to be a little familiar with blender you may try this workaround:

Export from Archicad to 3ds-file. Import 3ds to blender and export obj to octane.

It may not be the fastest workflow but it isn´t that bad. Plus blender has a brilliant plugin for octane which allows you to even make animations and so on.

Give it a try. octane is worth it. And sorry again!

Re: ArchiCAD (Export .obj) and Octane...just a dream ???

Posted: Tue Feb 21, 2012 8:10 pm
by kubo
since you are not a customer, yet, you'll have to export manually from blender, it's quite easy, but follow the parameters of this thread http://www.refractivesoftware.com/forum ... f=21&t=362 for proper exporting options, also if you figure out how to properly export from archiCAD to obj please post in that same thread your exporting options.
Have fun rendering.

Re: ArchiCAD (Export .obj) and Octane...just a dream ???

Posted: Wed Feb 22, 2012 12:11 pm
by estec
Just today I've tried the Octane and ArchiCAD combination and it did work with simple model of slab, 4 walls, window and roof. GREAT!

When I tried to import more complex scene with a lot of objects and materials, it crashed - maybe the advise with making simple ASCI compatible names of all entities would work - I'll give it a try but later because it takes a lot of work to check and rename all things.

One thing I am not sure about. The render has some kind of circles or curved stripes on the materials. It stays on the same place even if I move model. See attached picture. Have you any idea what is it?

Image

Core 2 Duo, 2GB RAM, GeForce 9600GT 1GB, ArchiCAD 15

Re: ArchiCAD (Export .obj) and Octane...just a dream ???

Posted: Wed Feb 22, 2012 12:14 pm
by t_3
estec wrote:One thing I am not sure about. The render has some kind of circles or curved stripes on the materials. It stays on the same place even if I move model. See attached picture. Have you any idea what is it?
yep; this means, you scene scale is wrong. looks like the house is some kilometers large ;)
you can change the scale factor in the .obj import settings...

EDIT: afaik this setting wasn't there in the demo, so you need to export your scene based on meters (as this is the base unit in octane).

Re: ArchiCAD (Export .obj) and Octane...just a dream ???

Posted: Wed Feb 22, 2012 12:33 pm
by estec
Wow! Thanks a lot! It's ok now. I just had to set units (from 1 to 1000 mm) when saving obj format from ArchiCAD.

So the "only" issue is that the Octane crashes when importing more complex scene from ArchiCAD and from the above informations I understand that the reason could be incompatible file and material names in the project. I will try this later...

Image