In general, all objects in a group in 3DC are exported to something called an Instance in the IGS file.
This Instance has a name of the format 1_0100_name where 1 is the LOD level, 0100 is the max distance (in m)

Automatic LODs will create versions of groups with 3 LODs, depending on the size of individual objects in the group, at 100, 400 and 1000 m and will use the 3DC group name as the name by default.
If you are using automatic LOD’s it is best not to put the preceeding ‘1_0100_’ on group names in 3DC – these will be added automatically.

You can also override the exported group name by right clicking on a group or object and examining the properties.
A ‘Rail Sim’ group custom field will appear on the properties page (lower right) – if you put 1_0200_name in here, this will be used instead of the group name.

However – If you use automatic LOD’s here, I will try and strip off the leading ‘1_0200_’ to determing the instance name and put back the automatic values. 1_0100 2_0400 3_1000

There was a bug in this part so there is now a patch on the other thread :

<!– m –><a class="postlink" href="http://amabilis.com/forumattachments…=202103551#202103551">http://amabilis.com/forumattachments&#8230; … #202103551</a><!– m –>

A couple of quick questions

Are you using the Rail Sim Group custom field to set the name?

What LOD export option are you using?

You must be logged in to reply in this thread.

2 posts