中图分类号：TP319
文献标识码：A
DOI：10.19358/j.issn.2096-5133.2021.01.005
引用格式： 陈川，任强，邓金华。 基于光线追踪的可视性分析研究与模块开发[J].信息技术与网络安全，2021，40（1）：26-30.

Research and module development of visibility analysis based on ray tracing

Abstract：Visibility analysis is an important part of ergonomics as the human eye is the most important organ to obtain information. The current mainstream visibility analysis tools mainly focus on the qualitative identification of the visual range, lacking advanced optical characteristic model, and cannot realistically reflect the visual situation of the human eye under different working conditions. This paper proposes a visibility analysis method based on ray tracing technology and establishes a global illumination model. A set of rendering engine based on this method is designed and developed to render visual objects pixel by pixel. A visibility analysis component with reflection and shadow feature also realized for CATIA. This paper extends the dimension and depth of CATIA visibility analysis, and adds a powerful module for its ergonomic components.

Key words :ergonomics；visibility analysis；ray tracing；global illumination