Hi,
1) When the screen is a different aspect, only one side (the same as the object vr) is 100%
For this, please have a look at the 'keep-aspect' example in the viewer examples.
2) make the object vr images adapt to the screen aspect, even if there could be some distortion. D
Distorting the pano/object image irregularly to fit the view is not possible.
Best regards,
Klaus