Guideline: Visual Variables for visualizations in VR
There exist guidelines that order visual variables according to how accurately they can be perceived by the user.
For example, the one created by Mackinlay states that position can be read more precisely than length or angle.
However, until today, I did not find such a guideline that specifically targets visualizations inside a Virtual Reality environment (VRE).
While designing visualizations in a VRE, I often wonder if it is reasonable to follow these guidelines.
I think that they should be similar if the visualization in the VRE is two-dimensional as those should be perceived similar as two-dimensional visualizations on a monitor.
However, in the case of three-dimensional visualizations, I think that the order is likely going to change since there is less distortion in the projection of a VRE.
What is your opinion on this topic, would you expect these guidelines to hold true for visualizations in VR environments?