Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Interactive update of global illumination using a line-space hierarchy
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Perception-guided global illumination solution for animation rendering
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Realistic image synthesis using photon mapping
Realistic image synthesis using photon mapping
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Interactive global illumination in dynamic scenes
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Interactive global illumination using selective photon tracing
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
Combining edges and points for interactive high-quality rendering
ACM SIGGRAPH 2003 Papers
An efficient spatio-temporal architecture for animation rendering
EGRW '03 Proceedings of the 14th Eurographics workshop on Rendering
Triple product wavelet integrals for all-frequency relighting
ACM SIGGRAPH 2004 Papers
Fast hierarchical importance sampling with blue noise properties
ACM SIGGRAPH 2004 Papers
Proceedings of the 2005 symposium on Interactive 3D graphics and games
Lightcuts: a scalable approach to illumination
ACM SIGGRAPH 2005 Papers
Splatting indirect illumination
I3D '06 Proceedings of the 2006 symposium on Interactive 3D graphics and games
Real-time soft shadows in dynamic scenes using spherical harmonic exponentiation
ACM SIGGRAPH 2006 Papers
ACM SIGGRAPH 2006 Papers
Direct-to-indirect transfer for cinematic relighting
ACM SIGGRAPH 2006 Papers
Matrix row-column sampling for the many-light problem
ACM SIGGRAPH 2007 papers
Implicit visibility and antiradiance for interactive global illumination
ACM SIGGRAPH 2007 papers
IEEE Transactions on Visualization and Computer Graphics
Interactive rendering using the render cache
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
Incremental instant radiosity for real-time indirect illumination
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
Kernel Nyström method for light transport
ACM SIGGRAPH 2009 papers
Approximation algorithms for tensor clustering
ALT'09 Proceedings of the 20th international conference on Algorithmic learning theory
LightSlice: matrix slice sampling for the many-lights problem
Proceedings of the 2011 SIGGRAPH Asia Conference
ManyLoDs: parallel many-view level-of-detail selection for real-time global illumination
EGSR'11 Proceedings of the Twenty-second Eurographics conference on Rendering
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Rendering animations of scenes with deformable objects, camera motion, and complex illumination, including indirect lighting and arbitrary shading, is a long-standing challenge. Prior work has shown that complex lighting can be accurately approximated by a large collection of point lights. In this formulation, rendering of animation sequences becomes the problem of efficiently shading many surface samples from many lights across several frames. This paper presents a tensor formulation of the animated many-light problem, where each element of the tensor expresses the contribution of one light to one pixel in one frame. We sparsely sample rows and columns of the tensor, and introduce a clustering algorithm to select a small number of representative lights to efficiently approximate the animation. Our algorithm achieves efficiency by reusing representatives across frames, while minimizing temporal flicker. We demonstrate our algorithm in a variety of scenes that include deformable objects, complex illumination and arbitrary shading and show that a surprisingly small number of representative lights is sufficient for high quality rendering. We believe out algorithm will find practical use in applications that require fast previews of complex animation.