Line Drawings from 3D Models PDF Download
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Author: Aaron Hertzmann
Publisher:
ISBN: 9781680835915
Category : Computer graphics
Languages : en
Pages : 159
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Book Description
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.
Author: Aaron Hertzmann
Publisher:
ISBN: 9781680835915
Category : Computer graphics
Languages : en
Pages : 159
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Book Description
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.
Author: Forrester H. Cole
Publisher:
ISBN:
Category :
Languages : en
Pages : 238
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Book Description
Author: Jim Leggitt
Publisher: John Wiley & Sons
ISBN: 047063913X
Category : Architecture
Languages : en
Pages : 265
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Book Description
The updated edition of a contemporary approach to merging traditional hand drawing methods with 2-dimensional and 3-dimensional digital visualization tools. Jim Leggitt?s Drawing Shortcuts shows how communicating with hand drawings combined with digital technology can be ingeniously simple, and this new edition makes an already popular technique even better. Completely expanded with new chapters and a wealth of supporting images, this Second Edition presents practical techniques for improving drawing efficiency and effectiveness by combining traditional hand drawing methods with the latest digital technology, including 3-D modeling with SketchUp. This book?s step-by-step approach will sharpen and streamline your techniques whether you draw for pleasure, school or your design profession. Easy-to-follow instructions cover every aspect from the basics of drawing?such as composition, color, shading, hatching, and perspective?up to the most current technologies Incorporates Google SketchUp, Google Earth, computer generated renderings, digital scanners and printers Features new visuals from accomplished drawing experts Special new ?Gallery? section highlights the creative process with step-by-step examples of drawings Complete coverage of the ?Overlay and Trace Method,? ?Simple Composite Method,? ?Advanced Composite Method,? and ?Digital Hybrid Drawings? New matrices show alternative drawing techniques for specific visual effects such as Linework and Shading, Selecting the Right Views, Perspectives and Paraline Drawings, Drawing Detail, Camera Lenses, and Drawing Tools Generously enriched with detailed process drawings, examples, and more than 500 full-color images, Drawing Shortcuts, Second Edition will have you creating top-quality drawings faster and more effectively.
Author: Caroline Chan
Publisher:
ISBN:
Category :
Languages : en
Pages : 41
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Book Description
This thesis presents an unsupervised method for creating line drawings from photographs or 3D models. Current methods often rely on high quality paired datasets to automate the creation of line drawings. We observe that line drawings are encodings of scene information that convey 3D shape and semantic meaning. We bake these observations into a set of first principle objectives and train an image translation network to map 3D objects into line drawings. We also explore generation of new styles of line drawings through a novel style confusion loss which averages and combines elements from different styles in a structured manner. User studies and quantitative experiments validate that our method encodes geometry and semantic information into line drawings and improves overall drawing quality.
Author: Alexandra Bonnici
Publisher: CRC Press
ISBN: 1000824039
Category : Technology & Engineering
Languages : en
Pages : 303
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Book Description
Sketching is a natural and intuitive communication tool used for expressing concepts and ideas that are difficult to communicate through text or speech alone. In design applications, drawings are used at various stages of the design process: from the early concept drawings scribbled on a piece of paper to immersive interactions in which users manipulate and adjust the 3D form of an object in virtual or augmented reality environments. This variety in drawing activities brings about the need for different interpretation strategies that support not only the sketching activity itself, but also allow sketch-based interactions, such as sketch-based queries, to take place. In this book, we explore the different drawing approaches used in design and the algorithms required for processing and interpreting the different sketches and drawings in design. The book is divided into two parts. The first part focuses on sketching in the 2D domain. This includes the digitization of offline and paperbased sketches, techniques for online sketch recognition, observations of user drawing habits, algorithms for inferring depth from 2D drawings, as well as non-photorealistic rendering techniques that are then applied to sketch-based queries. The second part of the book focuses on 3D sketching in virtual or augmented reality spaces. Here, we present the processing and rendering of the 3D strokes, the different interaction devices available for 3D sketching, and look at different applications where immersive 3D sketching has been applied with success.
Author: Sergey Ablameyko
Publisher: Springer Science & Business Media
ISBN: 1447107896
Category : Computers
Languages : en
Pages : 289
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Book Description
Line drawing interpretation is a challenging area with enormous practical potential. At present, many companies throughout the world invest large amounts of money and human resource in the input of paper drawings into computers. The technology needed to produce an image of a drawing is widely available, but the transformation of these images into more useful forms is an active field of research and development. Machine Interpretation of Line Drawing Images - describes the theory and practice underlying the computer interpretation of line drawing images and - shows how line drawing interpretation systems can be developed. The authors show how many of the problems can be tackled and provide a thorough overview of the processes underpinning the interpretation of images of line drawings.
Author: Martin Cooper
Publisher: Springer Science & Business Media
ISBN: 1848002297
Category : Computers
Languages : en
Pages : 254
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Book Description
Based on the author’s considerable research, this book contains state-of-the-art reviews of work in drawing interpretation and discrete optimization. It covers both drawings of polyhedral objects as well as complex curved objects.
Author: Francis D. K. Ching
Publisher:
ISBN:
Category : Architectural drawing
Languages : en
Pages : 136
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Book Description
The completely updated, illustrated bestseller on architectural graphics with over 500,000 copies sold Architectural Graphics presents a wide range of basic graphic tools and techniques designers use to communicate architectural ideas. Expanding upon the wealth of illustrations and information that have made this title a classic, this Fourth Edition provides expanded and updated coverage of drawing materials, multiview drawings, paraline drawings, and perspective drawings. Also new to this edition is the author's unique incorporation of digital technology into his successful methods. While covering essential drawing principles, this book presents: approaches to drawing section views of building interiors, methods for drawing modified perspectives, techniques for creating accurate shade and shadows, expert styles of freehand sketching and diagramming, and much more.
Author: Frank Melendez
Publisher: John Wiley & Sons
ISBN: 1119115620
Category : Architecture
Languages : en
Pages : 352
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Book Description
Bridges traditional and contemporary methods of creating architectural design drawings and 3D models through digital tools and computational processes. Drawing from the Model: Fundamentals of Digital Drawing, 3D Modeling, and Visual Programming in Architectural Design presents architectural design students, educators, and professionals with a broad overview of traditional and contemporary architectural representation methods. The book offers insights into developments in computing in relation to architectural drawing and modeling, by addressing historical analog methods of architectural drawing based on descriptive geometry and projection, and transitioning to contemporary digital methods based on computational processes and emerging technologies. Drawing from the Model offers digital tools, techniques, and workflows for producing architectural design drawings (plans, sections, elevations, axonometrics, and perspectives), using contemporary 2D drawing and 3D modeling design software. Visual programming is introduced to address topics of parametric modeling, algorithmic design, computational simulations, physical computing, and robotics. The book focuses on digital design software used in higher education and industry, including Robert McNeel & Associates Rhinoceros® (Rhino 6 for Windows), Grasshopper®, Adobe Illustrator® CC, and Arduino, and features an appendix filled with 10 design drawing and 3D modeling exercises intended as educational and pedagogical examples for readers to practice and/or teach workflows that are addresses in the book. Bridges analog hand-drawing and digital design drawing techniques Provides comprehensive coverage of architectural representation, computing, computer-aided drafting, and 3D modeling tools, techniques, and workflows, for contemporary architectural design drawing aesthetics and graphics. Introduces topics of parametric modeling, algorithmic design, computational simulation, physical computing, and robotics through visual programming environments and processes. Features tutorial-based instruction using the latest versions of Rhinoceros® (Rhino 6 for Windows), Grasshopper®, Adobe Illustrator® CC, and Arduino.
Author: Kōkichi Sugihara
Publisher: MIT Press (MA)
ISBN:
Category : Computers
Languages : en
Pages : 256
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Book Description
This book solves a long-standing problem in computer vision, the interpretation of line drawings and, in doing so answers many of the concerns raised by this problem, particularly with regard to errors in the placement of lines and vertices in the images. Sugihara presents a computational mechanism that functionally mimics human perception in being able to generate three-dimensional descriptions of objects from two-dimensional line drawings. The objects considered are polyhedrons or solid objects bounded by planar faces, and the line drawings are single-view pictures of these objects. Sugihara's mechanism has several potential applications. It can facilitate man-machine communication by extracting object structures automatically from pictures drawn by a designer, which can be particularly useful in the computer-aided design of geometric objects, such as mechanical parts and buildings. It can also be used in the intermediate stage of computer vision systems used to obtain and analyze images in the outside world. The computational mechanism itself is not accompanied by a large database but is composed of several simple procedures based on linear algebra and combinatorial theory. Contents:Introduction. Candidates for Spatial Interpretation. Discrimination between Correct and Incorrect Pictures. Correctness of HiddenPart-Drawn Pictures. Algebraic Structures of Line Drawings. Combinatorial Structures of Line Drawings. Overcoming Superstrictness. Algorithmic Aspects of Generic Reconstructibility. Specification of Unique Shapes. Recovery of Shape from Surface Information. Polyhedrons and Rigidity. Kokichi Sugihara is Professor in the Department of Mathematical Engineering and instrumentation Physics, Faculty of Engineering, the University of Tokyo, Tokyo, Japan. Machine interpretation of Line Drawingsis included in The MIT Press Series in Artificial Intelligence, edited by Patrick Henry Winston and Michael Brady.
