Fast shadows and lighting effects using texture mapping
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Fast calculation of soft shadow textures using convolution
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Efficient image-based methods for rendering soft shadows
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Homomorphic factorization of BRDFs for high-performance rendering
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
An efficient representation for irradiance environment maps
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Numerical Recipes in C: The Art of Scientific Computing
Numerical Recipes in C: The Art of Scientific Computing
Fast, arbitrary BRDF shading for low-frequency lighting using spherical harmonics
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
Collision Detection for Interactive Graphics Applications
IEEE Transactions on Visualization and Computer Graphics
All-frequency shadows using non-linear wavelet lighting approximation
ACM SIGGRAPH 2003 Papers
Clustered principal components for precomputed radiance transfer
ACM SIGGRAPH 2003 Papers
A geometry-based soft shadow volume algorithm using graphics hardware
ACM SIGGRAPH 2003 Papers
Precomputing interactive dynamic deformable scenes
ACM SIGGRAPH 2003 Papers
Adaptive medial-axis approximation for sphere-tree construction
ACM Transactions on Graphics (TOG)
Triple product wavelet integrals for all-frequency relighting
ACM SIGGRAPH 2004 Papers
Variational shape approximation
ACM SIGGRAPH 2004 Papers
Proceedings of the 2005 symposium on Interactive 3D graphics and games
The Scaling and Squaring Method for the Matrix Exponential Revisited
SIAM Journal on Matrix Analysis and Applications
Mean value coordinates for closed triangular meshes
ACM SIGGRAPH 2005 Papers
Soft shadow volumes for ray tracing
ACM SIGGRAPH 2005 Papers
Precomputed shadow fields for dynamic scenes
ACM SIGGRAPH 2005 Papers
Local, deformable precomputed radiance transfer
ACM SIGGRAPH 2005 Papers
ACM SIGGRAPH 2006 Papers
Hemispherical rasterization for self-shadowing of dynamic objects
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Real-time ambient occlusion for dynamic character skins
Proceedings of the 2007 symposium on Interactive 3D graphics and games
Hardware accelerated ambient occlusion techniques on GPUs
Proceedings of the 2007 symposium on Interactive 3D graphics and games
4D compression and relighting with high-resolution light transport matrices
Proceedings of the 2007 symposium on Interactive 3D graphics and games
Implicit visibility and antiradiance for interactive global illumination
ACM SIGGRAPH 2007 papers
Compact and efficient generation of radiance transfer for dynamically articulated characters
Proceedings of the 5th international conference on Computer graphics and interactive techniques in Australia and Southeast Asia
Real-time, all-frequency shadows in dynamic scenes
ACM SIGGRAPH 2008 papers
Real-time smoke rendering using compensated ray marching
ACM SIGGRAPH 2008 papers
Interactive global illumination based on coherent surface shadow maps
GI '08 Proceedings of graphics interface 2008
Soft irregular shadow mapping: fast, high-quality, and robust soft shadows
Proceedings of the 2009 symposium on Interactive 3D graphics and games
Approximating dynamic global illumination in image space
Proceedings of the 2009 symposium on Interactive 3D graphics and games
Multiresolution splatting for indirect illumination
Proceedings of the 2009 symposium on Interactive 3D graphics and games
Affine double- and triple-product wavelet integrals for rendering
ACM Transactions on Graphics (TOG)
Precomputation-Based Rendering
Foundations and Trends® in Computer Graphics and Vision
Normal mapping with low-frequency precomputed visibility
SIGGRAPH 2009: Talks
Micro-rendering for scalable, parallel final gathering
ACM SIGGRAPH Asia 2009 papers
All-frequency rendering of dynamic, spatially-varying reflectance
ACM SIGGRAPH Asia 2009 papers
ACM SIGGRAPH ASIA 2009 Courses
Proceedings of the 2010 ACM SIGGRAPH symposium on Interactive 3D Graphics and Games
Technical Section: Cosine lobes for interactive direct lighting in dynamic scenes
Computers and Graphics
Proceedings of the Conference on High Performance Graphics
Proceedings of the 2011 SIGGRAPH Asia Conference
SIGGRAPH Asia 2011 Sketches
Sparse zonal harmonic factorization for efficient SH rotation
ACM Transactions on Graphics (TOG)
The State of the Art in Interactive Global Illumination
Computer Graphics Forum
Tensor clustering for rendering many-light animations
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
Real-time shading with filtered importance sampling
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
Fast soft self-shadowing on dynamic height fields
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
Fast global illumination on dynamic height fields
EGSR'09 Proceedings of the Twentieth Eurographics conference on Rendering
Precomputed radiance transfer for real-time indirect lighting using a spectral mesh basis
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
Large-scale data management for PRT-based real-time rendering of dynamically skinned models
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
Precomputed radiance transfer for dynamic scenes taking into account light interreflection
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
Interactive illumination with coherent shadow maps
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
A real-time beam tracer with application to exact soft shadows
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
Multi-layer screen-space ambient occlusion using hybrid sampling
Proceedings of the 12th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry
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Previous methods for soft shadows numerically integrate over many light directions at each receiver point, testing blocker visibility in each direction. We introduce a method for real-time soft shadows in dynamic scenes illuminated by large, low-frequency light sources where such integration is impractical. Our method operates on vectors representing low-frequency visibility of blockers in the spherical harmonic basis. Blocking geometry is modeled as a set of spheres; relatively few spheres capture the low-frequency blocking effect of complicated geometry. At each receiver point, we compute the product of visibility vectors for these blocker spheres as seen from the point. Instead of computing an expensive SH product per blocker as in previous work, we perform inexpensive vector sums to accumulate the log of blocker visibility. SH exponentiation then yields the product visibility vector over all blockers. We show how the SH exponentiation required can be approximated accurately and efficiently for low-order SH, accelerating previous CPU-based methods by a factor of 10 or more, depending on blocker complexity, and allowing real-time GPU implementation.