Hey guys,
so, Im working on a car model and I mirrored the door to the other side of the car.
on export, both doors have thier normals pointing the correct way. out.
then I build a side view mirror on the original door and joined the pieces where they meet
so they are now 1 object.

I deleted the door on the other side, then I mirrored the new door with sideview mirror on it.
Now upon export the original door comes out with normals pointing outward
and the mirrored door has normals pointing inward.

How do I fix this so it exports correctly.
thanks

Mike Fitz
www.3dartz.com

Hi Mike, that probably means that your new object is not a
fully closed solid.

Somewhere there is a hole or some edges that did not get
joined to their neighboring edges.

If you are using the latest (Sep-21) beta, you can use this script on a
keyboard shortcut to highlight the open edges:

script:var gd = moi.geometryDatabase; gd.deselectAll(); var breps = gd.getObjects().getBreps(); for ( var i = 0; i < breps.length; ++i ) breps.item(i).getNakedEdges().setProperty( 'selected', true );

Also if it looks like your object should be closed you may try just selecting
it and using Edit/Separate on it followed by Edit/Join to re-join it and
possibly seal up the edges that did not get joined properly previously.

Other than that you would usually use the "Flip" or "Reverse"
function in your other polygon oriented software to reverse the
direction if it is not what you need.


I do have it on my todo list to add some kind of option for displaying
normals and flipping them at export time from MoI but there is not
currently a way to do that.

- Michael