Imaging vector fields using line integral convolution
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
Reflection vector shading hardware
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Illumination in diverse codimensions
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Interactive visualization of 3D-vector fields using illuminated stream lines
Proceedings of the 7th conference on Visualization '96
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
A non-photorealistic lighting model for automatic technical illustration
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Line direction matters: an argument for the use of principal directions in 3D line drawings
NPAR '00 Proceedings of the 1st international symposium on Non-photorealistic animation and rendering
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Illumination for computer generated pictures
Communications of the ACM
Volume illustration: non-photorealistic rendering of volume models
Proceedings of the conference on Visualization '00
Are isophotes and reflection lines the same?
Computer Aided Geometric Design - Pierre Bézier
Non-photorealistic computer graphics: modeling, rendering, and animation
Non-photorealistic computer graphics: modeling, rendering, and animation
Non-Photorealistic Rendering
Exploring surface characteristics with interactive Gaussian images: a case study
Proceedings of the conference on Visualization '02
SIGGRAPH '83 Proceedings of the 10th annual conference on Computer graphics and interactive techniques
Artificial texturing: An aid to surface visualization
SIGGRAPH '83 Proceedings of the 10th annual conference on Computer graphics and interactive techniques
An application of color graphics to the display of surface curvature
SIGGRAPH '81 Proceedings of the 8th annual conference on Computer graphics and interactive techniques
Suggestive contours for conveying shape
ACM SIGGRAPH 2003 Papers
Texture Synthesis for 3D Shape Representation
IEEE Transactions on Visualization and Computer Graphics
A novel cubic-order algorithm for approximating principal direction vectors
ACM Transactions on Graphics (TOG)
View direction, surface orientation and texture orientation for perception of surface shape
GI '04 Proceedings of the 2004 Graphics Interface Conference
GI '04 Proceedings of the 2004 Graphics Interface Conference
A simple and flexible volume rendering framework for graphics-hardware-based raycasting
VG'05 Proceedings of the Fourth Eurographics / IEEE VGTC conference on Volume Graphics
Technical Section: Surface-based flow visualization
Computers and Graphics
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In this paper we propose cycle shading and hatched cycle shading as new local shading techniques for shape assessment and visualization. Natural surface highlights are extended to not only appear in isolated parts of a surface, but to reappear throughout the surface in a regular and easy-to-control pattern. Thereby even small surface variations become visible, wherever they are located on the surface. We further extend (hatched) cycle shading to curves in 3D, i.e., to shapes of higher codimension. We demonstrate how (hatched) cycle shading improves 3D vector field visualization by showing higher-order discontinuities of streamlines, pathlines, or streaklines. Our visualization approach is generic, simple, efficient, and can readily be used where Phong illumination is applicable because information on curvature or mesh connectivity is not required. The effectiveness of cycle shading for the assessment of surface quality is demonstrated by a user study. Finally, this paper addresses issues of anti-aliasing, parameter control, applications, and efficient GPU implementations.