Efficient algorithms for local and global accessibility shading
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Flow and changes in appearance
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Digital Texturing and Painting
Digital Texturing and Painting
IEEE Computer Graphics and Applications
Gradient Vector Flow: A New External Force for Snakes
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Stereological techniques for solid textures
ACM SIGGRAPH 2004 Papers
Parallel controllable texture synthesis
ACM SIGGRAPH 2005 Papers
ACM SIGGRAPH 2005 Papers
Visual simulation of weathering by γ-ton tracing
ACM SIGGRAPH 2005 Papers
Capture, analysis and synthesis of textured surfaces with variation in illumination, viewpoint, and time
Appearance manifolds for modeling time-variant appearance of materials
ACM SIGGRAPH 2006 Papers
Time-varying surface appearance: acquisition, modeling and rendering
ACM SIGGRAPH 2006 Papers
ACM Transactions on Graphics (TOG)
IEEE Transactions on Visualization and Computer Graphics
Efficient editing of aged object textures
AFRIGRAPH '07 Proceedings of the 5th international conference on Computer graphics, virtual reality, visualisation and interaction in Africa
Technical Section: A survey of aging and weathering phenomena in computer graphics
Computers and Graphics
Procedural Urban Modeling in Practice
IEEE Computer Graphics and Applications
Digital Modeling of Material Appearance
Digital Modeling of Material Appearance
Principles of Appearance Acquisition and Representation
Foundations and Trends® in Computer Graphics and Vision
An interactive design system for water flow stains on outdoor images
SG'10 Proceedings of the 10th international conference on Smart graphics
Texture transfer using geometry correlation
EGSR'06 Proceedings of the 17th Eurographics conference on Rendering Techniques
Example-Based Fractured Appearance
Computer Graphics Forum
Spectral appearance changes induced by light exposure
ACM Transactions on Graphics (TOG)
On-the-fly multi-scale infinite texturing from example
ACM Transactions on Graphics (TOG)
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The simulation of weathered appearance is essential in the realistic modeling of urban environments. A representative and particularly difficult effect to produce on a large scale is the effect of fluid flow. Changes in appearance due to flow are the result of both the global effect of large-scale shape, and local effects, such as the detailed roughness of a surface. With digital photography and Internet image collections, visual examples of flow effects are readily available. These images, however, mix the appearance of flows with the specific local context. We present a methodology to extract parameters and detail maps from existing imagery in a form that allows new target-specific flow effects to be produced, with natural variations in the effects as they are applied in different locations in a new scene. In this article, we focus on producing a library of parameters and detail maps for generating flow patterns; and this methodology can be used to extend the library with additional image exemplars. To illustrate our methodology, we show a rich collection of patterns applied to urban models.