Abstract
Synthesizing realistic images of gemstones requires techniques beyond the scope of normal ray tracing. The ‘fire’ of such highly refractive objects is what makes gemstones attractive, and also imposes very high computational overhead to perform time consuming dispersive ray tracing. Gemstones are usually cut in polyhdrons as for example, a brillant cut. After a detailed analysis of the nature of dispersive ray tracing of polyhedral objects, we propose here a new method of using three simple rays adaptively to model the ray spreading caused by dispersive refraction. It is shown that the proposed method reduces the computational complexity to an order close to that of normal ray tracing.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.References
Cook, Robert L, Torrance KE (1982) A reflectance model for computer graphics. ACM Trans Graph 1:7–24
Cook, Tobert L, Porter T, Carpenter L (1984) Distributed ray tracing. Proc SIG-GRAPH'84 18:137–145
Driscoll, Walter G, William Vaughan (1978) Handbook of Optics. McGraw-Hill Book Company, pp 7–82
Fujimoto A, Tanaka T, Iwata K (1986) ARTS:, accelerated raytracing system. IEEE Comput Graph Appl 6(2):16–26
Hall RA, Grenberg DP (1983) A testbed for realistic image synthesis. IEEE Comput Graph Appl 3(8):10–20
Hecht E (1987) Optics, 2nd edn. Addison-Wesley pp 57–63
Kingslake (1978) Lens design fundamentals. Academic Press, New York, p 12
Takagi J, Yokoi S, Tsuruoka S, Kimura F, Miyake Y (1984) A ray tracing model considering color dispersion of light. Proc Graph CAD Symp, Inf Proc Soc Jpn (in Japanese), pp 81–87
Thomas SW (1986) Dispersive refraction in ray tracing. The Visual Computer 2(1):3–8
Wallace, John R, Cohen MF, Greenberg DP (1987) A two-pass solution to the rendering equation: a synthesis of ray tracing and radiosity methods. Proc SIGGRAPH'87 21(4):311–320
Whitted T (1980) An improved illumination model for shaded display. Commun ACM 23(6):343–349
Wyvill G, Kunii TL, Shirai Y (1986) Space division for ray tracing in CSG. IEEE Comput Graph Appl 6(2):28–34
Simon, Marvin K, Omura JK, Robert AS, Barry KL (1985) Spread spectrum communications. Comput Science Press, Vol 1, pp 43–44
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Yuan, Y., Kunii, T.L., Inamoto, N. et al. GemstoneFire: adaptive dispersive ray tracing of polyhedrons. The Visual Computer 4, 259–270 (1988). https://doi.org/10.1007/BF01901281
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01901281