The influence of text rotation, font and distance on legibility in VR

The legibility of text in virtual environments (VE) is especially important for the simulation of user interfaces of real machines and devices. For this purpose a study was conducted to examine the influence of rotation, the distance and the font of text on the legibility in VR. In addition, the minimum readable text size under these conditions was measured using the angular unit dmm. The results of the study show that text rotated 60° or more requires a much larger text size to be legible regardless of the distance of the text to the viewer and font.