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I am trying to import a .dae collada file that contains external references in the form of:

<visual_scene id="Scene" name="Scene">
        <instance_node url="./trees.dae#appletree-0" />
</visual_scene>

The referenced file lives in the same directory as the referring file. When I import the .dae I see no errors on the console. Yet, no new geometry shows up in blender.

Are external references broken for Blender as they seem to be for many Collada readers?

I tried with Blender version 2.76b

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Yes, Blender can indeed load geometry from external references.

I had bungled the test, because my referenced file was missing the tag:

<library_nodes> ... </library_nodes>

Once I put those in, Blender did a great job of loading external references from Collada. Sorry for the confusion.

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  • $\begingroup$ Can you provide a more complete example of the syntax for external references in collada? It would be very appreciated. $\endgroup$ – panofish Jun 21 '18 at 19:33

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