The Journal of the Institute of Image Electronics Engineers of Japan
Online ISSN : 1348-0316
Print ISSN : 0285-9831
ISSN-L : 0285-9831
Papers
Real-Time Reflection and Refraction on a Per-Vertex Basis
Masanori KAKIMOTOTomoaki TATSUKAWAGeng CHUNTomoyuki NISHITA
Author information
JOURNAL FREE ACCESS

2008 Volume 37 Issue 3 Pages 196-205

Details
Abstract
This paper proposes a novel method for real-time rendering of polygon mesh surfaces with reflection or refraction. The basic process is similar to dynamic environment mapping or cube mapping. Our proposed method is superior to those in that the accurate ray direction is reflected in the resulted image at every vertex on the mesh. Existing real-time techniques suffer from the differences between the viewpoint for the environment map and each reflection point. The proposed method minimizes this by finding an optimal viewpoint for the reflective or refractive mesh. With a sufficient number of vertices and map image resolutions, the users can render reflected images as accurate as ray tracing for all practical purposes, except for reflected objects around ray converging points of reflection on concave surfaces or refraction through convex lenses. The method can be applied to areas which require accuracy such as industrial design. Experiments with a CAD model of a car rear-view mirror and spectacle lenses exhibited results of sufficient quality for design verification.
Content from these authors
© 2008 by the Institute of Image Electronics Engineers of Japan
Previous article Next article
feedback
Top