Towards image realism with interactive update rates in complex virtual building environments
I3D '90 Proceedings of the 1990 symposium on Interactive 3D graphics
Visibility preprocessing for interactive walkthroughs
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Computing the antipenumbra of an area light source
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Reverse search for enumeration
Discrete Applied Mathematics - Special volume: first international colloquium on graphs and optimization (GOI), 1992
Computational geometry: algorithms and applications
Computational geometry: algorithms and applications
Conservative volumetric visibility with occluder fusion
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Conservative visibility preprocessing using extended projections
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Exact from-region visibility culling
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
Visibility Preprocessing with Occluder Fusion for Urban Walkthroughs
Proceedings of the Eurographics Workshop on Rendering Techniques 2000
Hardware-Accelerated from-Region Visibility Using a Dual Ray Space
Proceedings of the 12th Eurographics Workshop on Rendering Techniques
Ray space factorization for from-region visibility
ACM SIGGRAPH 2003 Papers
Visibility Preprocessing for Urban Scenes using Line Space Subdivision
PG '01 Proceedings of the 9th Pacific Conference on Computer Graphics and Applications
Visibility Computations in Densely Occluded Polyhedral Environments
Visibility Computations in Densely Occluded Polyhedral Environments
A survey of visibility for walkthrough applications
IEEE Transactions on Visualization and Computer Graphics
Hardware accelerated visibility preprocessing using adaptive sampling
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Computing an exact spherical visibility map for meshed polyhedra
Proceedings of the 2007 ACM symposium on Solid and physical modeling
ACM SIGGRAPH 2009 Courses
An integer incremental AOI algorithm for progressive downloading of large scale VRML environments
Edutainment'07 Proceedings of the 2nd international conference on Technologies for e-learning and digital entertainment
FastV: from-point visibility culling on complex models
EGSR'09 Proceedings of the Twentieth Eurographics conference on Rendering
Low-Complexity Intervisibility in Height Fields
Computer Graphics Forum
Aggressive region-based visibility computation using importance sampling
Proceedings of the 11th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and its Applications in Industry
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We present a fast exact from-region visibility algorithm for 2.5D urban scenes. The algorithm uses a subdivision of line space for identifying visibility interactions in a 2D footprint of the scene. Visibility in the remaining vertical dimension is resolved by testing for the existence of lines stabbing sequences of virtual portals. Our results show that exact analytic from-region visibility in urban scenes can be computed at times comparable or even superior to recent conservative methods.