Practical Issues of Raytracing Implicit Surfaces with Interval Analysis
نویسندگان
چکیده
This paper discuss practical issues and implementation details on improving e ciency of ray intersection calculations of implicit surfaces using interval analysis. We examine two methods of improving the basic method described in [8]: a new technique for calculating intervals along a ray; and a method for spatial pruning based on the work in [7]. Comparisons are drawn between the di erent techniques and we have found that using the gradient to perform root isolation does not increase e ciency.
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