Non indexed geometry

Hello,

Does Collada specification support non indexed geometry ?

I see that

(in <triangles>) is optional.
Does it mean that the geometry is non-indexed in this case ?

Regards

No. It just means the triangles are undefined.

This is an example where the schema allows optional elements in order to facilitate incremental document creation and testing. You can delete or comment out portions of a document for testing purposes and yet it remains valid.