Automatic Creation of Object Hierarchies for Ray Tracing
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SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
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The design and analysis of spatial data structures
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Proceedings of the 18th annual conference on Computer graphics and interactive techniques
A rapid hierarchical radiosity algorithm
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
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Proceedings of the 18th annual conference on Computer graphics and interactive techniques
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Combining hierarchical radiosity and discontinuity meshing
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Textures and radiosity: controlling emission and reflection with texture maps
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A clustering algorithm for radiosity in complex environments
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ACM Transactions on Graphics (TOG)
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ACM Transactions on Graphics (TOG)
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IEEE Computer Graphics and Applications
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ACM Transactions on Graphics (TOG)
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IEEE Computer Graphics and Applications
Automatic Creation of Object Hierarchies for Radiosity Clustering
PG '99 Proceedings of the 7th Pacific Conference on Computer Graphics and Applications
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EGRW '03 Proceedings of the 14th Eurographics workshop on Rendering
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SIGGRAPH '05 ACM SIGGRAPH 2005 Courses
Implicit visibility and antiradiance for interactive global illumination
ACM SIGGRAPH 2007 papers
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ACM Transactions on Graphics (TOG)
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ACM SIGGRAPH 2008 papers
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ACM Transactions on Graphics (TOG)
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ACM SIGGRAPH 2012 Courses
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EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
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EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
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EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
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The paper presents a new radiosity algorithm that allows the simultaneous computation of energy exchanges between surface elements, scattering volume distributions, and groups of surfaces, or object clusters. The new technique is based on a hierarchical formulation of the zonal method, and efficiently integrates volumes and surfaces. In particular no initial linking stage is needed, even for inhomogeneous volumes, thanks to the construction of a global spatial hierarchy. An analogy between object clusters and scattering volumes results in a powerful clustering radiosity algorithm, with no initial linking between surfaces and fast computation of average visibility information through a cluster. We show that the accurate distribution of the energy emitted or received at the cluster level can produce even better results than isotropic clustering at a marginal cost. The resulting algorithm is fast and, more importantly, truly progressive as it allows the quick calculation of approximate solutions with a smooth convergence towards very accurate simulations