Object positions are wrong

Claude9 · 24th July 2006, 08:08 PM

v6.023 winxp

I have loads of parts i've made for my models (motorcycles) which have been centred 0,0,0 i move them into the desired position and save as .3ds but when i reload the parts are either in their original position or some seem to have been moved along the z axis or randomly moved?

i've noticed on object props that it's not updating co-ords, dunno if this has anything to do with it? is it a problem with .3ds import/export?
never had this problem with previous versions of ac3d

Claude9 · 25th July 2006, 08:17 PM

Deleted my prefs.txt which has sorted the co-ords problem but objects are still not saving in correct position?
Is it just me who's having this problem with .3ds

luuckyy · 26th July 2006, 06:55 AM

Hi,
I've done a small test and the result is that all the objects of a 3ds model exported by AC3D are centered on the Y axis when imported back ...

I'm not using 3ds format a lot, but well ... there might be a little problem yes.

A workaround for that would be to not import the 3ds models back into AC3D, and to just work with ac files ...

Claude9 · 26th July 2006, 09:29 AM

Thanks for conformation luuckyy but my models need to be .3ds before i convert them for the game i make them for. So i suppose until a fix is made for this i cant make any models

luuckyy · 26th July 2006, 12:24 PM

Quote:

Originally Posted by Claude9

Thanks for conformation luuckyy but my models need to be .3ds before i convert them for the game i make them for. So i suppose until a fix is made for this i cant make any models

Well what you can do is to export your models as OBJ files, import them in Wings3D
http://www.wings3d.com/ and export them from Wings3D as 3ds files then ... it works.
And Wings3D is free

Claude9 · 26th July 2006, 04:03 PM

thx but i dont think i should have download another 3d program to needlessly convert my models into different file formats in order to do what ac3d did perfectly before.

luuckyy · 26th July 2006, 04:11 PM

I understand.
It was just a suggestion if you are in a hurry for exporting your models.

Andy · 26th July 2006, 05:36 PM

Are you sure the objects are badly positioned? We have tested this and found AC3D to be better at loading 3DS files than other software.

Are the files you are loading from 3D Studio Max or from some other program that writes 3DS files?

Claude9 · 26th July 2006, 07:36 PM

The models are made with ac3d, here's an example of whats happening the first shows how it should be while the second shows how its saving/reloading in ac3d

mconn1 · 26th July 2006, 08:39 PM

I have seen this kind of misalignment of objects in some of the applications I model for. I made a similar mistake when I first started modeling.

Try changing your method of building a model. In many cases, the front is looking back through the handlebars to the back of the bike. The side is the side view of the cycle. The top is the top down view. (I know it is obvious)

Basically, try rotating you model 90 degrees on the X axis. Then make sure the model is aligned with the major axis to keep the program you are exporting to from making any changes you don't expect.

If you forget, some programs will try and adjust the model's objects to where the program thinks they should be. That usually ends up making your model look like what you generated when you reloaded to AC3D.

I know it sounds as if it shouldn't matter, but some programs are pretty particular in this aspect.

24th July 2006, 08:08 PM	#1
Claude9 Member Advanced member Join Date: Mar 2005 Location: Lunar Orbit Posts: 30	Object positions are wrong v6.023 winxp I have loads of parts i've made for my models (motorcycles) which have been centred 0,0,0 i move them into the desired position and save as .3ds but when i reload the parts are either in their original position or some seem to have been moved along the z axis or randomly moved? i've noticed on object props that it's not updating co-ords, dunno if this has anything to do with it? is it a problem with .3ds import/export? never had this problem with previous versions of ac3d

25th July 2006, 08:17 PM	#2
Claude9 Member Advanced member Join Date: Mar 2005 Location: Lunar Orbit Posts: 30	Re: Object positions are wrong Deleted my prefs.txt which has sorted the co-ords problem but objects are still not saving in correct position? Is it just me who's having this problem with .3ds

26th July 2006, 06:55 AM	#3
luuckyy Senior Member Professional user Join Date: Jul 2005 Location: France Posts: 732	Re: Object positions are wrong Hi, I've done a small test and the result is that all the objects of a 3ds model exported by AC3D are centered on the Y axis when imported back ... I'm not using 3ds format a lot, but well ... there might be a little problem yes. A workaround for that would be to not import the 3ds models back into AC3D, and to just work with ac files ... __________________ OL.

26th July 2006, 09:29 AM	#4
Claude9 Member Advanced member Join Date: Mar 2005 Location: Lunar Orbit Posts: 30	Re: Object positions are wrong Thanks for conformation luuckyy but my models need to be .3ds before i convert them for the game i make them for. So i suppose until a fix is made for this i cant make any models

26th July 2006, 04:03 PM	#6
Claude9 Member Advanced member Join Date: Mar 2005 Location: Lunar Orbit Posts: 30	Re: Object positions are wrong thx but i dont think i should have download another 3d program to needlessly convert my models into different file formats in order to do what ac3d did perfectly before.

26th July 2006, 04:11 PM	#7
luuckyy Senior Member Professional user Join Date: Jul 2005 Location: France Posts: 732	Re: Object positions are wrong I understand. It was just a suggestion if you are in a hurry for exporting your models. __________________ OL.

26th July 2006, 05:36 PM	#8
Andy Administrator Professional user Join Date: Jun 2003 Posts: 3,727	Re: Object positions are wrong Are you sure the objects are badly positioned? We have tested this and found AC3D to be better at loading 3DS files than other software. Are the files you are loading from 3D Studio Max or from some other program that writes 3DS files?

26th July 2006, 07:36 PM	#9
Claude9 Member Advanced member Join Date: Mar 2005 Location: Lunar Orbit Posts: 30	Re: Object positions are wrong The models are made with ac3d, here's an example of whats happening the first shows how it should be while the second shows how its saving/reloading in ac3d Attached Images Last edited by Claude9; 26th July 2006 at 07:39 PM.

26th July 2006, 08:39 PM	#10
mconn1 Member Expert member Join Date: Dec 2003 Posts: 55	Re: Object positions are wrong I have seen this kind of misalignment of objects in some of the applications I model for. I made a similar mistake when I first started modeling. Try changing your method of building a model. In many cases, the front is looking back through the handlebars to the back of the bike. The side is the side view of the cycle. The top is the top down view. (I know it is obvious) Basically, try rotating you model 90 degrees on the X axis. Then make sure the model is aligned with the major axis to keep the program you are exporting to from making any changes you don't expect. If you forget, some programs will try and adjust the model's objects to where the program thinks they should be. That usually ends up making your model look like what you generated when you reloaded to AC3D. I know it sounds as if it shouldn't matter, but some programs are pretty particular in this aspect.

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