Some objects do not appear.

tirtpirt

I load a 3ds model using qt3d. firstly everything is ok, but when i rotate the model, some objects do not appear.

Franzk

It would help if you provide some working example code and a model that reproduce the issue. Also, what possible causes have you already checked?

tirtpirt

I uploaded a video which helps me to explain my issue.

I am using the same code in the penguin example just changed the 3ds file name.