AC3D 8.5 CTD on Cinema 4d r18 .obj import

Ronster · 21st August 2020, 04:16 PM

Hello all
I mainly use Maxon Cinema 4d 18 for most of my modelling which I then export as an .obj to import to Ac3D for editing textures etc ready for X-Plane. Ac3D 8.0.80 did the job fine. 8.5.55 however just crashes to desktop when i try to import the same .obj. I do have a workaround by saving it as an .ac file and importing into the newer version, but it's a pain

Ron

Andy · 22nd August 2020, 11:32 AM

Please send me the offending file and I'll fix this.

Andy · 23rd August 2020, 06:36 AM

I can see that the file has an object header line after the vertices and before the faces. (rather than before both vertices and faces) This is making the current OBJ importer try to generate an object with no vertices(!).

The fix for this is to switch off File->settings->files->Obj-import-as-multipl-objects.

The obj importer will need modifying to cope with this situation so until then, it's best to switch off the above setting.

Ronster · 23rd August 2020, 10:39 AM

Hi Andy,
Thanks so much for the very speedy reply and yes I can now import again with a single click

Ron

21st August 2020, 04:16 PM	#1
Ronster Junior Member Junior member Join Date: Aug 2020 Posts: 5	AC3D 8.5 CTD on Cinema 4d r18 .obj import Hello all I mainly use Maxon Cinema 4d 18 for most of my modelling which I then export as an .obj to import to Ac3D for editing textures etc ready for X-Plane. Ac3D 8.0.80 did the job fine. 8.5.55 however just crashes to desktop when i try to import the same .obj. I do have a workaround by saving it as an .ac file and importing into the newer version, but it's a pain Ron

22nd August 2020, 11:32 AM	#2
Andy Administrator Professional user Join Date: Jun 2003 Posts: 4,523	Re: AC3D 8.5 CTD on Cinema 4d r18 .obj import Please send me the offending file and I'll fix this.

23rd August 2020, 06:36 AM	#3
Andy Administrator Professional user Join Date: Jun 2003 Posts: 4,523	Re: AC3D 8.5 CTD on Cinema 4d r18 .obj import I can see that the file has an object header line after the vertices and before the faces. (rather than before both vertices and faces) This is making the current OBJ importer try to generate an object with no vertices(!). The fix for this is to switch off File->settings->files->Obj-import-as-multipl-objects. The obj importer will need modifying to cope with this situation so until then, it's best to switch off the above setting.

23rd August 2020, 10:39 AM	#4
Ronster Junior Member Junior member Join Date: Aug 2020 Posts: 5	Re: AC3D 8.5 CTD on Cinema 4d r18 .obj import Hi Andy, Thanks so much for the very speedy reply and yes I can now import again with a single click Ron

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