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Suddenly having an issue with the visibility of instances in studio.....
They seem to disappear as i move round the viewport randomly appearing and disappearing when zooming in and out , orbiting etc

They generally appear (in plan) when I zoom right out and start to disappear as I zoom in.

Never had this issue before

Happens in 3.1 and 3.2 on mac with latest OS

Any possible cause come to mind ?

Where do they dissapear from? Opengl, Fire, Both?

general advice: check camera's near/far clip (Z-buffer)...

definitely not a clipping issue

weird...however I'm not a studio user (but Maya) so my other advice (as I use stuff made in ivy generator too...) is to create MXS refernces, it's way better to keep a full library of MXS.
's

thats about 1gb of ivy right there.....
prob about 50 gb worth on this building so instancing is a far better way

anyway thanks choo-chee.....

referencing will require an awful lot of referenced objects

Strange thing is that ONLY the instances drop out

in maya you can duplicate the MXS references as instances, so it's way better. you save the size of the ivy since it's stored in separate files and not the scene itself, and then duplicate all the different types as instances. i have about 10 "typical" ivy models, all are MXS, and i instance them in the scene.

ok I will have to go back and try this...at least to see if these are visible
The other prob is the references only show as 'dots' which is not ideal if accurate positioning is required

I think you can change it to mesh display. think I've seen this option discussed somewhere here.