create two instanced mesh
make one the parent of the other
clone the parent instance
You will see the cloning takes long time
see
https://www.babylonjs-playground.com/#855KQJ#3
uncomment line 36,37
notice how long it now takes to run
It seems that the cloning of instanced mesh takes a long time if the instanced mesh has a parent which is also an instanced mesh.
As a workaround I currently remove the parent, do the clone , and then restore the parent.
I made a PR to fix this:
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Nice.
Also an issue if the parent is a plane transform node. You might want to check that
Just checked; it fixes that bug as well
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