KIAM Main page Web Library  •  Publication Searh   
Publication

Conference material: "Proceedings of the International Conference on Computer Graphics and Vision Graphicon (19-21 September 2023, Moscow)"
Authors: Zhdanov D.D., Potemin I.S., Zhdanov A.D.
Using Embree Technologies for Ray Tracing in Optical Systems with Free-form Surfaces
Abstract:
The paper considers the possibility of using a two-level representation of the geometry of free-form surfaces to speed up the ray tracing process and increase the stability of the tracing results for cases of 'unnatural' ray propagation, for example, in the analysis of scattered light in optical systems. Surfaces defined by high-order polynomials (up to the 34th order), as well as Jacobi polynomials, were considered as free-form surfaces. The analysis was carried out and the shortcomings of the representation of this geometry in an explicit form and in the form of a triangular grid were revealed. A method was proposed for the double representation of geometry in the form of a coarse triangular grid and the original analytical expression. Based on the Embree library, ray tracing methods were developed for geometric surfaces that have a dual representation. The developed methods have shown a significant acceleration of the ray tracing while maintaining the accuracy and high stability of calculations. The paper presents the results of calculating the point spread function and flare for lenses with aspherical surfaces given by Jacobi polynomials.
Keywords:
Free Form Surface, Embree, Ray Tracing, SIMD, Stray Light
Publication language: russian,  pages: 11 (p. 97-107)
Russian source text:
Export link to publication in format:   RIS    BibTeX
About authors:
  • Zhdanov Dmitri Dmitrievich,  orcid.org/0000-0001-7346-8155ITMO University
  • Potemin Igor Stanislavovich,  orcid.org/0000-0002-5785-7465ITMO University
  • Zhdanov Andrei Dmitrievich,  orcid.org/0000-0002-2569-1982ITMO University