A problem with writing an export plugin

[APEXnow]

At the moment, I'm currently writing an export plugin for AC3D v4.0.7. From what I can see, the v3 SDK is not that much different from the v4 AC3D.lib file, so I've put upon myself to write an exporter for a given fileformat. So far, my plugin is initialized correctly and the plugin function is executed.

Now. one of the exported AC3D functions is ac_object_get_type which determines whether an object is.. an object, a group, a light or the world object. If I create a new workspace, create two cubes and then group them, the function above behaves correctly:-

WORLD -> GROUP -> CUBE, CUBE

Where GROUP is of type 1 (Group).

Now if I load the "AC3D4\Models\Samples\Mydesk4.ac" and then perform the same export, although the group right below the World object is called "workstationandfurniture", the above function returns 0 (Object). It returns 0 on all objects in the file irrespective of whether the item is a group or an object. Is this a bug or is it something else?

This doesn't cause a problem for me if I create new files but if I load the examples for testing export, the problem prevents me from working out a group hierachy without having to traverse the world object list etc etc.

Thanks.

Paul
apex@apexnow.co.uk
http://www.apexnow.co.uk

[Andy]

Hi Paul, do you have the 4.0 headers? If not, send me an email and I'll get them to you.


It's best to use:

int ac_object_get_num_children(ACObject *ob);

(or get the childrenlist) to check if an object has children. Earlier AC3D's didn't distinguish between normal objects and objects with children (and future versions may not either).

Andy