SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Oriented projective geometry
Drawing and animation using skeletal strokes
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
HoloSketch: a virtual reality sketching/animation tool
ACM Transactions on Computer-Human Interaction (TOCHI) - Special issue on virtual reality software and technology
QuickTime VR: an image-based approach to virtual environment navigation
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
SKETCH: an interface for sketching 3D scenes
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Tour into the picture: using a spidery mesh interface to make animation from a single image
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Orientable textures for image-based pen-and-ink illustration
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Computer graphics and architecture: state of the art and outlook for the future
ACM SIGGRAPH Computer Graphics
A non-photorealistic lighting model for automatic technical illustration
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Graphical input through machine recognition of sketches
SIGGRAPH '76 Proceedings of the 3rd annual conference on Computer graphics and interactive techniques
Expressive Rendering: A Review of Nonphotorealistic Techniques
IEEE Computer Graphics and Applications
Harold: a world made of drawings
NPAR '00 Proceedings of the 1st international symposium on Non-photorealistic animation and rendering
Fluid sketches: continuous recognition and morphing of simple hand-drawn shapes
UIST '00 Proceedings of the 13th annual ACM symposium on User interface software and technology
I3D '01 Proceedings of the 2001 symposium on Interactive 3D graphics
Aiding manipulation of handwritten mathematical expressions through style-preserving morphs
GRIN'01 No description on Graphics interface 2001
Tangible interfaces in virtual environments for industrial design
Proceedings of the working conference on Advanced visual interfaces
Appearance-preserving manipulation of hand-drawn graphs
GRAPHITE '05 Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia
Catenaccio: interactive information retrieval system through drawing
Proceedings of the working conference on Advanced visual interfaces
Vers une interface multimodale pour une assistance à la conception architecturale
IHM 2004 Proceedings of the 16th conference on Association Francophone d'Interaction Homme-Machine
Magic canvas: interactive design of a 3-D scene prototype from freehand sketches
GI '07 Proceedings of Graphics Interface 2007
ACM SIGGRAPH 2007 courses
Edutainment '08 Proceedings of the 3rd international conference on Technologies for E-Learning and Digital Entertainment
Napkin sketch: handheld mixed reality 3D sketching
Proceedings of the 2008 ACM symposium on Virtual reality software and technology
3D animation creation using space canvases for free-hand drawing
VRCAI '08 Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry
Intuitive shape modeling by shading design
SG'05 Proceedings of the 5th international conference on Smart Graphics
A two-stage approach for interpreting line drawings of curved objects
SBM'04 Proceedings of the First Eurographics conference on Sketch-Based Interfaces and Modeling
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Freehand sketching has long had appeal as an artistic medium for conceptual design because of its immediacy in capturing and communicating design intent and visual experience. We present a sketching paradigm that supports the early stages of design by preserving the fluidity of traditional freehand drawings. In addition, it attempts to fill the gap between 2D drawing programs, which have fixed views, and 3D modeling programs that allow arbitrary views. We implement our application as a two-dimensional drawing program that utilizes a projective representation of points — i.e. points that lie on the surface of a unit sphere centered at the viewpoint. This representation facilitates the production of novel re-projections generated from an initial perspective sketch and gives the user the impression of being immersed in the drawing or space. We describe a method for aligning a sketch drawn outside the system using its vanishing points, allowing the integration of computer sketching and freehand sketching on paper in an iterative manner. The user interface provides a virtual camera, projective grids to guide in the construction of proportionate scenes, and the ability to underlay sketches with other drawings or photographic panoramas.