Benard P. Line drawings from 3D models. A tutorial 2019

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Benard P. Line drawings from 3D models. A tutorial 2019

Textbook in PDF format This tutorial describes the geometry and algorithms for generating line drawings from 3D models, focusing on occluding contours. The geometry of occluding contours on meshes and on smooth surfaces is described in detail, together with algorithms for extracting contours, computing their visibility, and creating stylized renderings and animations. Exact methods and hardware-accelerated fast methods are both described, and the trade-offs between different methods are discussed. The tutorial brings together and organizes material that, at present, is scattered throughout the literature. It also includes some novel explanations, and implementation tips. A thorough survey of the field of non-photorealistic 3D rendering is also included, covering other kinds of line drawings and artistic shading. Introduction Image-Space Curves Mesh Contours: Definition and Detection Mesh Curve Visibility Smooth Surfaces as Meshes Fast Hardware-Based Extraction and Visibility Parametric Surfaces: Contours and Visibility Implicit Surfaces: Contours and Visibility Stylized Rendering and Animation Conclusion Acknowledgements References