Image rendering by adaptive refinement
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
Hierarchical Data Structures and Algorithms for Computer Graphics. Part I.
IEEE Computer Graphics and Applications
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
The hemi-cube: a radiosity solution for complex environments
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
The aliasing problem in computer-generated shaded images
Communications of the ACM
A progressive refinement approach to fast radiosity image generation
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
High-performance polygon rendering
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Modeling the interaction of light between diffuse surfaces
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Acceleration techniques for progressive refinement radiosity
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Real time radiosity through parallel processing and hardware acceleration
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An efficient radiosity solution for bump texture generation
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Adaptive radiosity textures for bidirectional ray tracing
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Adaptive mesh generation for global diffuse illumination
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
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A rapid hierarchical radiosity algorithm
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Fast object-precision shadow generation for area light sources using BSP trees
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The irradiance Jacobian for partially occluded polyhedral sources
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Load balancing for a parallel radiosity algorithm
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PRS '95 Proceedings of the IEEE symposium on Parallel rendering
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Proceedings of the 26th annual conference on Computer graphics and interactive techniques
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Proceedings of the 26th annual conference on Computer graphics and interactive techniques
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ACM Transactions on Graphics (TOG)
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International Journal of Computer Vision - Special issue on computer vision research at NEC Research Institute
Texture-based visibility for efficient lighting simulation
ACM Transactions on Graphics (TOG)
Fast texture-based form factor calculations for radiosity using graphics hardware
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Radiosity Redistribution for Dynamic Environments
IEEE Computer Graphics and Applications
Rendering fake soft shadows with smoothies
EGRW '03 Proceedings of the 14th Eurographics workshop on Rendering
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Current radiosity methods rely on the calculation of geometric factors, known as form-factors, which describe energy exchange between pairs of surfaces in the environment. The most computationally efficient method for form-factor generation is a numerical technique known as the hemi-cube algorithm. Use of the hemi-cube is based on assumptions about the geometry of the surfaces involved. First, this paper examines the types of errors and visual artifacts that result when these assumptions are violated. Second, the paper shows that these errors occur more frequently in progressive refinement radiosity than in the originally proposed full matrix radiosity solution. Next, a new analytical technique for determining form-factors that is immune to the errors of the hemi-cube algorithm is introduced. Finally, a hybrid progressive refinement method that invokes the new technique to correctly compute form-factors when hemi-cube assumptions are violated is presented.