Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Predicting reflectance functions from complex surfaces
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Dynamic view-dependent simplification for polygonal models
Proceedings of the 7th conference on Visualization '96
An image-space refinement criterion for linear hierarchical radiosity
Proceedings of the conference on Graphics interface '97
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Fast, arbitrary BRDF shading for low-frequency lighting using spherical harmonics
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
Elements of Early Vision for Computer Graphics
IEEE Computer Graphics and Applications
I3D '03 Proceedings of the 2003 symposium on Interactive 3D graphics
Perceptually guided simplification of lit, textured meshes
I3D '03 Proceedings of the 2003 symposium on Interactive 3D graphics
Improved Specular Highlights With Adaptive Shading
CGI '96 Proceedings of the 1996 Conference on Computer Graphics International
Illumination Dependent Refinement of Multiresolution Meshes
CGI '98 Proceedings of the Computer Graphics International 1998
Clustered principal components for precomputed radiance transfer
ACM SIGGRAPH 2003 Papers
A signal-processing framework for forward and inverse rendering
A signal-processing framework for forward and inverse rendering
A framework for precomputed and captured light transport
ACM Transactions on Graphics (TOG)
EGSR'11 Proceedings of the Twenty-second Eurographics conference on Rendering
Sparsely precomputing the light transport matrix for real-time rendering
EGSR'10 Proceedings of the 21st Eurographics conference on Rendering
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In precomputed radiance transfer (PRT), the radiance transfer operator is precomputed on vertices of a mesh. During rendering the transfer operator is combined with illumination to produce global illumination effects at real-time frame rates. However, visible error can be introduced by interpolating the transferred radiance between vertices. We propose to adaptively subdivide meshes with PRT in order to avoid the interpolation error. The mesh density is increased where the transferred radiance can change rapidly and introduce high error. We exploit the fact that the illumination frequency in PRT is bounded and thus we are able to perform the subdivision during the preprocessing phase. This obviates the need for dynamic mesh subdivision at render-time. The adaptive subdivision is guided by an error measure based on the transfer operator.