Visual Immersion Issues in Virtual Reality: A Survey

Thanks to immersion and interaction, Virtual Reality (VR) offers a shift of paradigm compared to traditional computer graphics or simulation software. Most VR applications include a visual rendering part. However, efficient and relevant visual interfacing of a human user (who can be a designer, the final user of a future product, a trainee or the subject of an experiment) raises issues about visual interfaces and depth perception in computer generated images. In this survey we review the issues raised by the visual part of VR applications. We particularly focus on the commonly used stereoscopic vision by studying its constraints and show how an efficient stereoscopic application should be designed.