Effects of Chai3D texture rendering parameters on texture perception

Abstract

Touching objects in a virtual environment is a challenge that has yet to be addressed convincingly, in part because haptic technology and, in particular, low-cost haptic technology have strong limitations. This work aimed at assessing the impact of Chai3D texture rendering parameters on texture perception. We used Multidimensional Scaling techniques to build psychological scales for the texture level, stiffness, dynamic friction and several texture patterns. Two perceptual dimensions were in general necessary to fully account for the one-dimensional parameter change. The scales for the texture level, dynamic friction and texture pattern parameters were markedly larger than the stiffness scale, indicating the potential of these parameters to generate well differentiated textures.