Rendering fur with three dimensional textures
SIGGRAPH '89 Proceedings of the 16th 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
Efficient simulation of light transport in scenes with participating media using photon maps
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
A ray tracing solution for diffuse interreflection
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
A practical model for subsurface light transport
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
A practical model for subsurface light transport
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Realistic image synthesis using photon mapping
Realistic image synthesis using photon mapping
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
Light scattering from human hair fibers
ACM SIGGRAPH 2003 Papers
Radiance Caching for Efficient Global Illumination Computation
IEEE Transactions on Visualization and Computer Graphics
Ray maps for global illumination
EGSR'05 Proceedings of the Sixteenth Eurographics conference on Rendering Techniques
A Survey on Hair Modeling: Styling, Simulation, and Rendering
IEEE Transactions on Visualization and Computer Graphics
Efficient multiple scattering in hair using spherical harmonics
ACM SIGGRAPH 2008 papers
Dual scattering approximation for fast multiple scattering in hair
ACM SIGGRAPH 2008 papers
A mass spring model for hair simulation
ACM SIGGRAPH 2008 papers
SBIM '07 Proceedings of the 4th Eurographics workshop on Sketch-based interfaces and modeling
Advanced material appearance modeling
ACM SIGGRAPH 2008 classes
Digital Modeling of Material Appearance
Digital Modeling of Material Appearance
Capturing hair assemblies fiber by fiber
ACM SIGGRAPH Asia 2009 papers
A practical approach for photometric acquisition of hair color
ACM SIGGRAPH Asia 2009 papers
Advanced material appearance modeling
ACM SIGGRAPH 2009 Courses
Line space gathering for single scattering in large scenes
ACM SIGGRAPH 2010 papers
Interactive hair rendering under environment lighting
ACM SIGGRAPH 2010 papers
An artist friendly hair shading system
ACM SIGGRAPH 2010 papers
Advanced techniques in real-time hair rendering and simulation
ACM SIGGRAPH 2010 Courses
A comprehensive theory of volumetric radiance estimation using photon points and beams
ACM Transactions on Graphics (TOG)
Interactive hair rendering and appearance editing under environment lighting
Proceedings of the 2011 SIGGRAPH Asia Conference
A framework for rendering complex scattering effects on hair
I3D '12 Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
Virtual ray lights for rendering scenes with participating media
ACM Transactions on Graphics (TOG) - SIGGRAPH 2012 Conference Proceedings
State of the art in photon density estimation
ACM SIGGRAPH 2012 Courses
ISHair: Importance Sampling for Hair Scattering
Computer Graphics Forum
High-quality curve rendering using line sampled visibility
ACM Transactions on Graphics (TOG) - Proceedings of ACM SIGGRAPH Asia 2012
An energy-conserving hair reflectance model
EGSR'11 Proceedings of the Twenty-second Eurographics conference on Rendering
A volumetric approach to predictive rendering of fabrics
EGSR'11 Proceedings of the Twenty-second Eurographics conference on Rendering
Efficient and accurate rendering of complex light sources
EGSR'09 Proceedings of the Twentieth Eurographics conference on Rendering
Single photo estimation of hair appearance
EGSR'09 Proceedings of the Twentieth Eurographics conference on Rendering
Rendering discrete random media using precomputed scattering solutions
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
Recent advances in physically-based appearance modeling of cloth
SIGGRAPH Asia 2012 Courses
Modular flux transfer: efficient rendering of high-resolution volumes with repeated structures
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Special Section on CAD/Graphics 2013: Adaptive importance photon shooting technique
Computers and Graphics
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Simulating multiple scattering correctly is important for accurate rendering of hair. However, a volume of hair is a difficult scene to simulate because scattering from an individual fiber is very structured and forward directed, and because the radiance distributions that arise from many such scattering events remain quite directional. For these reasons, previous methods cannot compute accurate images substantially faster than Monte Carlo path tracing.This paper proposes a new physically accurate method for rendering hair that is based on previous volumetric photon mapping methods. The first pass generates a photon map by tracing particles through the hair geometry, depositing them along paths rather than at scattering events. The second pass ray traces the hair, computing direct illumination and looking up indirect radiance in the photon map. Photons are stored and looked up in 5D position-direction space to allow for the very directional radiance distributions that occur in hair. Together with a new radiance caching method for fibers, our method simulates difficult scattering problems in hair efficiently and with low noise.The new algorithm is validated against path tracing and also compared with a photograph of light scattering in real hair.