Publication
Ray Tracing in Non-Constant Media
AbstractIn this paper, we explore the theory of optical deformations due to continuous variations of the refractive index of the air, and present several efficient implementations. We introduce the basic equations from geometrical optics, outlining a general method of solution. Further, we model the fluctuations of the index of refraction both as a superposition of blobs and as a stochastic function. Using a well known perturbation technique from geometrical optics, we compute linear approximations to the deformed rays. We employ this approximation and the blob representation to efficiently ray trace non linear rays through multiple environments. In addition we present a stochastic model for the ray deviations derived from an empirical model of air turbulence. We use this stochastic model to precompute deformation maps.
Download publicationRelated Resources
See what’s new.
2024
Autodesk Research Unveils Project Bernini for Generative AI 3D Shape CreationProject Bernini is a research effort focused on developing generative…
2024
XLB: A Differentiable Massively Parallel Lattice Boltzmann Library in PythonThis research introduces the XLB library, a scalable Python-based…
1997
The design of a GUI paradigm based on tablets, two-hands, and transparencyAn experimental GUI paradigm is presented which is based on the design…
2019
Project Dasher: Real-Time Building Performance in BIMProject Dasher is an Autodesk research project using a BIM-based…
Get in touch
Something pique your interest? Get in touch if you’d like to learn more about Autodesk Research, our projects, people, and potential collaboration opportunities.
Contact us