SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
Optimally combining sampling techniques for Monte Carlo rendering
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Realistic image synthesis using photon mapping
Realistic image synthesis using photon mapping
Robust monte carlo methods for light transport simulation
Robust monte carlo methods for light transport simulation
ACM SIGGRAPH 2006 Papers
Matrix row-column sampling for the many-light problem
ACM SIGGRAPH 2007 papers
ACM SIGGRAPH Asia 2008 papers
Stochastic progressive photon mapping
ACM SIGGRAPH Asia 2009 papers
Virtual spherical lights for many-light rendering of glossy scenes
ACM SIGGRAPH Asia 2009 papers
Photon density estimation using multiple importance sampling
ACM SIGGRAPH ASIA 2009 Posters
Effects of global illumination approximations on material appearance
ACM SIGGRAPH 2010 papers
Combining global and local virtual lights for detailed glossy illumination
ACM SIGGRAPH Asia 2010 papers
A progressive error estimation framework for photon density estimation
ACM SIGGRAPH Asia 2010 papers
Progressive photon mapping: A probabilistic approach
ACM Transactions on Graphics (TOG)
Robust adaptive photon tracing using photon path visibility
ACM Transactions on Graphics (TOG)
LightSlice: matrix slice sampling for the many-lights problem
Proceedings of the 2011 SIGGRAPH Asia Conference
Bidirectional light transport with vertex merging
SIGGRAPH Asia 2011 Sketches
ACM Transactions on Graphics (TOG) - SIGGRAPH 2012 Conference Proceedings
ACM Transactions on Graphics (TOG) - SIGGRAPH 2012 Conference Proceedings
A path space extension for robust light transport simulation
ACM Transactions on Graphics (TOG) - Proceedings of ACM SIGGRAPH Asia 2012
Metropolis photon sampling with optional user guidance
EGSR'05 Proceedings of the Sixteenth Eurographics conference on Rendering Techniques
A path space extension for robust light transport simulation
ACM Transactions on Graphics (TOG) - Proceedings of ACM SIGGRAPH Asia 2012
A practical algorithm for rendering interreflections with all-frequency BRDFs
ACM Transactions on Graphics (TOG)
State of the art in photon density estimation
SIGGRAPH Asia 2013 Courses
Improving robustness of Monte-Carlo global illumination with directional regularization
SIGGRAPH Asia 2013 Technical Briefs
Special Section on CAD/Graphics 2013: Adaptive importance photon shooting technique
Computers and Graphics
Sorted deferred shading for production path tracing
EGSR '13 Proceedings of the Eurographics Symposium on Rendering
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Developing robust light transport simulation algorithms that are capable of dealing with arbitrary input scenes remains an elusive challenge. Although efficient global illumination algorithms exist, an acceptable approximation error in a reasonable amount of time is usually only achieved for specific types of input scenes. To address this problem, we present a reformulation of photon mapping as a bidirectional path sampling technique for Monte Carlo light transport simulation. The benefit of our new formulation is twofold. First, it makes it possible, for the first time, to explain in a formal manner the relative efficiency of photon mapping and bidirectional path tracing, which have so far been considered conceptually incompatible solutions to the light transport problem. Second, it allows for a seamless integration of the two methods into a more robust combined rendering algorithm via multiple importance sampling. A progressive version of this algorithm is consistent and efficiently handles a wide variety of lighting conditions, ranging from direct illumination, diffuse and glossy inter-reflections, to specular-diffuse-specular light transport. Our analysis shows that this algorithm inherits the high asymptotic performance from bidirectional path tracing for most light path types, while benefiting from the efficiency of photon mapping for specular-diffuse-specular lighting effects.