Backgrounds
Best background practices for great 3D experiences
Avoid using high contrast colors on overlapping objects that are far apart on the depth axis, for example this white cube over a black background. This causes maximum crosstalk, which is light bleeding from adjacent views, to be visible, which looks bad on the display.
Solid colored backgrounds are fine but they do not give depth information.
Detailed backgrounds enable the perception of depth.
Backgrounds which only change color vertically and not horizontally, for example, a vertical gradient, give no depth information.
Horizontal color changes are needed in order to perceive depth.