AI 中文总结
本文综述CAD透明渲染的现状，分析近似与精确技术的权衡，研究强调内部组件的技术，探讨CSG对象渲染挑战，为该领域刻画当前能力、系统化开放问题并指明未来方向。
AI 中文摘要
本文综述了计算机辅助设计（CAD）领域透明渲染的研究现状，重点关注工业系统中的实际部署及底层算法。首先回顾了CAD环境中现有的透明渲染方法，概述了精确且高性能的透明效果对设计检查、交流与决策至关重要的应用场景；接着分析了近似与精确透明技术间的权衡，对比了它们在桌面端与移动端的性能-质量平衡，讨论了选择合适方法的标准；还指出了针对CAD特定可视化任务的鲁棒基准、质量指标与评估方法的需求，研究了用于强调重要内部组件的技术，如重要性驱动透明、基于轮廓的方法等，以支持复杂装配体中有效的空间理解；最后探讨了渲染透明构造实体几何（CSG）对象的独特挑战，包括鲁棒性、正确性及与现代渲染管线的集成。这些贡献共同刻画了当前能力，系统化了开放问题，为CAD可视化中的透明渲染勾勒了未来研究方向。
英文摘要
This paper surveys the state of transparency rendering in Computer-Aided Design (CAD), with a focus on both practical deployment in industrial systems and the underlying algorithms. We first review current approaches to transparency rendering in CAD environments and outline application scenarios in which accurate and performant transparency is critical for design inspection, communication, and decision-making. We then analyze the trade-offs between approximate and exact transparency techniques, comparing their performance-quality balance on desktop and mobile platforms and discussing criteria for selecting appropriate methods. The survey further identifies the need for robust benchmarks, quality metrics, and evaluation methodologies tailored to CAD-specific visualization tasks. We examine techniques for emphasizing important interior components such as importance-driven transparency, silhouette-based methods, and related approaches to support effective spatial understanding in complex assemblies. Finally, we discuss the unique challenges of rendering transparent constructive solid geometry (CSG) objects, including robustness, correctness, and integration with modern rendering pipelines. Collectively, these contributions characterize current capabilities, systematize open problems, and outline future research directions for transparency rendering in CAD visualization.
CommentsAuthor Version. Published at Computer-Aided Design & Applications, DOI: https://doi.org/10.14733/cadaps.2027.133-151
Journal refComputer-Aided Design & Applications, 24(2), 2027, 133-151
DOI：10.14733/cadaps.2027.133-151
