topic Converting to morph destroy uv maps in Collaboration with other software

Converting to morph destroy uv maps

jc4d — Mon, 27 Jan 2025 15:13:07 GMT

Hello,

I have made an object in Blender uv mapped, when I import it into ac using collada the textures are fine, but when I convert the object to morph the uv mapping is lost.

Am I doing something wrong or is there a way to avoid this?

Object right after import as collada:

Object after converting it to morph:

Juan.

Re: Converting to morph destroy uv maps

neilmcallister — Fri, 06 May 2022 14:07:35 GMT

I'm hoping there is an answer to this - I have the same problem importing sketchup objects.

Re: Converting to morph destroy uv maps

runxel — Fri, 06 May 2022 21:16:40 GMT

I do fear that this is not possible at the moment.

Doing UVs (somewhat) correctly can only be achieved in GDL, meaning in an object. As soon you convert that to a morph it won't work.

Re: Converting to morph destroy uv maps

jc4d — Sat, 07 May 2022 15:03:13 GMT

I found a "workaround", the main reason for converting a imported model into morph is to be able to hide the unnecessary vertices without dealing with diving into the gdl code as @runxel suggested. Althought it could be great, dealing with texture mapping in the gdl code is a nightmare (sorry for the harsh word).

The workaround is to install the Archicad goodies specifically the 3ds import addon, with it you can have a much cleaner mesh representation in the elevations without the messy mesh looking.

Of course if you convert it to morph, the uv's will get lost

Collada import on the left and 3ds on the right in elevation view:

Juan

Re: Converting to morph destroy uv maps

JohnJay — Sat, 07 May 2022 15:13:51 GMT

How are you exporting to 3ds?

And when you import into AC the UVs are maintained?

Re: Converting to morph destroy uv maps

jc4d — Sat, 07 May 2022 15:52:24 GMT

One blender developer has made a 3ds import/export addon.

https://github.com/blender/blender-addons-contrib/tree/master/io_scene_3ds

Yes, so far the object comes into ac as it was in blender, but if you convert it as morph, then the uv maps are destroyed anyway.

Re: Converting to morph destroy uv maps

JohnJay — Sat, 21 May 2022 08:03:19 GMT

Thanks but I can't get the script to work 😳

Which file do I need? Tried all 3 and combinations of but after attempted install the plugin doesn't appear in the list

Re: Converting to morph destroy uv maps

jc4d — Sat, 21 May 2022 17:21:38 GMT

You have to download the whole folder from here:
https://github.com/blender/blender-addons-contrib

After downloaded unzip and navigate until you see this:

Then drag that folder into your Blender script addons in the AppData, something like this:

And after that launch Blender and it should show in your addons, enable it and ready to go

Hope it helps 🙂

Juan.

Re: Converting to morph destroy uv maps

Jaime-airc_digital — Tue, 25 Oct 2022 02:45:54 GMT

I am trying a similar workflow, and the Collada format seems to be the best one to maintain textures and geometry. The only drawback being that the object interface does not provide an easy way to remove the edges.

To remove them, open the object GDL script editor (cmd+alt+O), go to the 3D script and Find and Replace (cmd+F) "-1, -1, 0" by "-1, -1, 1" and select Replace All.

When you save the object, the edges will disappear!