Hi all,
I'm looking for a script able to automate file export of all named objects to the obj format.
The file export options are identical for all named objects as is the destination folder.
The usual dialog should be suppressed and the script assignable to a shortkey.
I could dig thru all the MOI API JS documentation, but I'm sure such a script already exists on some script expert's hd .-)
TIA

Hi Oliver, so just to clarify, you want each named object exported to its own individual file? Or do all the named objects go into a single file?

How would the destination folder be specified?

> The usual dialog should be suppressed and the script assignable to a shortkey.

There are 2 dialogs usually shown for .obj export, one for picking the file name and the next one for meshing options. Which of these were you referring to?

If you don't want the meshing options dialog to be shown, do you just want the default meshing options used?

- Michael

Hi Michael,

first of all, thanks a lot for your quick reply, amazing and much appreciated !

>> you want each named object exported to its own individual file? Or do all the named objects go into a single file?
Each named object should be exported to its own individual file, same name as the object name.

>> How would the destination folder be specified ?
I would hardcode it into the js file.

>> There are 2 dialogs usually shown for .obj export, one for picking the file name and the next one for meshing options. Which of these were you referring to?
Both. File name = object name + ".obj"

>> If you don't want the meshing options dialog to be shown, do you just want the default meshing options used?
I would hardcode those into the js file as well.

Best,

Hi Oliver, that should be feasible, I'll give it a try later on tonight.

- Michael

Hi Oliver, please try the attached script. There are instructions for installing a plug-in script here. This script only has a .js file, no .htm since it does not show any UI.

You will need to edit the script to alter the directory name, it's near the top. Also there's a note in there on how to set an option in moi.ini for how to turn off script file caching, if you don't do that you'd need to exit MoI every time you edited the script since by default they're cached in memory and not reloaded.

To adjust the meshing parameters you'll need to alter the second parameter that's sent to moi.geometryDatabase.fileExport() , like to make it use an angle of 10, edit that line to be:
moi.geometryDatabase.fileExport( filename, 'NoUI=true;Angle=12.0' );

If you remove the NoUI=true part then the meshing options dialog will be displayed.

Hope that does what you were looking for!

- Michael

Hi Michael and good morning.

Thank you very much for this very useful script!!!

Best,

- Marco (mkdm)

P.S. How to put inline BBcode images inside forum messages ?

Hi Marco, for this forum use html like tags, like <code></code>

- Michael

for image
img src="name_image.jpg" /
between <>

Thanks :)

Great, Michael, works like a charm, thank you !

It's important to delimit the parameters of fileExport with ";" and inclose them in " ' " like here :

moi.geometryDatabase.fileExport(filename,'NoUI=true;Angle=12.0;Output=quads;Weld=true;Display=shadedwithedges');

Perhaps the script could be added to the script collection.

Another question
Is there a way to compute the minimum size of the exported object
for an uvmap size of, say, 2048 pixels ?
I want to keep my obj files as small as possible before being unwrapped and uvmapped in 3D Coat.

TIA

Hi Oliver, I'm glad that is working for you!

re:
> Another question
> Is there a way to compute the minimum size of the exported object
> for an uvmap size of, say, 2048 pixels ?

Sorry I don't understand this question, what size is it that you want to compute in pixels? There isn't really anything that MoI generates to an .obj file that is measured in pixels.

- Michael

Hi Michael,

just wanted to know if there's a way to reduce
the uvmap size by reducing the model size.

I have a really huge model to be textured that
is bursting 3D Coat in the Paint Room.

So I guess I will have to reduce the polycount
to get the work done.

Anyway, Merry Christmas to you and all of the members
of this outstanding forum and a happy 2017 !!

Hi Oliver, Merry Christmas to you as well!

But for the UV map size question, sorry no there isn't any connection between model size and UV map size. The UV coordinates MoI exports are pretty basic, every face in the model has UV coordinates between 0 and 1. These coordinates are not pixel coordinates though, they're coordinates in an abstract unit square representing the texture map width and height without any specific pixel coordinates. Pixels only come into play when you assign an actual texture bitmap to something later on.

But if the default UV coordinates that MoI is exporting is causing a problem in 3D Coat and you're going to need to make a new UV mapping anyway you could just turn off the UV coordinate export by a setting in moi.ini , go to Options > General > "Edit .ini file" button. Then go to the [OBJ Export] section and find this line:

[OBJ Export]
<...>
WriteTextureCoordinates=y
<...>

And change that to say WriteTextureCoordinates=n instead.

Hope that will help!

- Michael

Good hint, Michael. Thanks for sharing!

Hello everyone and apologies for necroing this thread. :|

I am trying to find a way to export my selection as multiple separate .objs and run across this script. What would be the best way to do that? I should probably look for a batch rename script and then run this one- unless there is a simpler way.

Maybe read this entiere little thread http://moi3d.com/forum/index.php?webtag=MOI&msg=8582.1

Hi nameless, you can try this for assigning a generic name "object_1", "object_2", etc.. to all current unnamed objects:

script: /* assign names to unnamed objects */ var objs = moi.geometryDatabase.getObjects(); var counter = 0; var current_names = []; for ( var i = 0; i < objs.length; ++i ) { var obj = objs.item(i); if ( obj.name ){ current_names[obj.name] = true; } } for ( var i = 0; i < objs.length; ++i ) { var obj = objs.item(i); if ( obj.name ) { continue; } ++counter; var name = 'object_' + counter; while ( current_names[name] === true ) { ++counter; name = 'object_' + counter; } obj.name = name; }

- Michael

Thanks Pilou and Michael,

These both work!

I was wondering- Is there a way or a "bridging" script that can run 2 commands one after the other with a single shortcut? That would help script illiterates like me to be able to cook two commands together. I understand that this could potentially create unexpected problems with dialogues and stuff but it was worth a try :))

Thank you for that naming script Michael! I badly needed it, as I rarely name things, I work messy as hell :|

Hi nameless,

re:
> I was wondering- Is there a way or a "bridging" script that can run 2 commands one
> after the other with a single shortcut?

Not currently but that is something that I want to add.

- Michael

Hi Michael,

Awesome! Happy it's on your radar :D