Go Back   AC3D Forums > General > AC3D Suggestions
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
Old 11th November 2006, 01:18 AM   #1
Dann-O
Junior Member
Junior member
 
Join Date: Oct 2006
Posts: 6
Default Improved OBJ import

Well I have been using AH3D for a bit and find it handy but there are a few thigns I do not like. The OBJ import is a big one. I get the mesh in as only 1 piece not as seperate parts. Also it does nto recognise color regions either. The UV maps works but importing a head you made in another app the eyes are part of the head mesh when you exported. I sit in the works to improve this. I can import a 3DS and it reconises individual parts and colors but it triangualtes the mesh.
Dann-O is offline   Reply With Quote
Old 12th November 2006, 11:45 PM   #2
Dennis
Senior Member
Professional user
 
Dennis's Avatar
 
Join Date: Jul 2003
Posts: 899
Default Re: Improved OBJ import

It does look like colored surfaces aren't imported correctly into AC3D from OBJ files (just tested this). This looks like something that definitely needs to be addressed.

The problem with "breaking up" objects in the OBJ importer is due to the way geometry is stored in an OBJ file versus the way AC3D handles geometry.

The "parts" in an OBJ file may point to vertices that belong to different "parts". In AC3D, a vertex can only belong to one object. So, the "parts" have to be merged into a single object in order for shared vertices to be recognized. Without this, you'd end up with vertices being duplicated, and smoothing across different parts would no longer work (you'd end up with seams).

Assuming you're using AC3D 6:

In your example of importing a head and the eyes being all part of the same object, there is a workaround. Select one of the surfaces in the eye and perform an : Edit -> Select Surfaces -> Connected. Unless the eye is split for some reason, this will select all of the surfaces in the eye, and you can then do a : Surface -> Cut Away Object.

If you're on version 5, try this plugin:

http://supercoldmilk.com/ac3dplug/selconn.html

Good luck
Dennis is offline   Reply With Quote
Old 13th November 2006, 07:19 AM   #3
Dann-O
Junior Member
Junior member
 
Join Date: Oct 2006
Posts: 6
Thumbs up Re: Improved OBJ import

Thanks Dennis I hope this can be resoved in the future. Maybe a dialog when you import. (do you want to bring in teh colrs as seperate groups?) I have version 6 so I will try the trick you mentioned in the future. It is your hair plug in that did this. I like yoru hair plug in and was importing a model I made In wings to add hair and the eyes were not seperated and I made different texture zones for the iris pupil etc.

I like a lot of your plug ins and use the greeble and hair a lot Also like the twist one too. I am enjoying thsi software I think one thing that can be improved also is edge handling selecting edge loops and rings. I still use Wings for a lto of my organic stuff but most of the mechanical models I have moved over to AC3D.
Dann-O is offline   Reply With Quote
Old 13th November 2006, 12:42 PM   #4
latego
Junior Member
Member
 
Join Date: Aug 2006
Posts: 17
Default Re: Improved OBJ import

I have noticed a bug on export: you assign custom named materials and save. The .ac file contains the names you gave but if you try to export it into .OBJ, you are back to acmat_xxx.
latego is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -4. The time now is 10:04 AM.


AC3D Forum
(C) Inivis Limited 2020