Rendering fur with three dimensional textures
SIGGRAPH '89 Proceedings of the 16th annual conference on Computer graphics and interactive techniques
Measuring and modeling anisotropic reflection
SIGGRAPH '92 Proceedings of the 19th 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
Non-linear approximation of reflectance functions
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Illumination for computer generated pictures
Communications of the ACM
Light scattering from human hair fibers
ACM SIGGRAPH 2003 Papers
Efficient BRDF importance sampling using a factored representation
ACM SIGGRAPH 2004 Papers
Wavelet importance sampling: efficiently evaluating products of complex functions
ACM SIGGRAPH 2005 Papers
Simulating multiple scattering in hair using a photon mapping approach
ACM SIGGRAPH 2006 Papers
A Survey on Hair Modeling: Styling, Simulation, and Rendering
IEEE Transactions on Visualization and Computer Graphics
Light Scattering from Filaments
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
Numerical Recipes 3rd Edition: The Art of Scientific Computing
Numerical Recipes 3rd Edition: The Art of Scientific Computing
Interactive hair rendering under environment lighting
ACM SIGGRAPH 2010 papers
An artist friendly hair shading system
ACM SIGGRAPH 2010 papers
ACM SIGGRAPH 2010 Talks
Physically Based Rendering, Second Edition: From Theory To Implementation
Physically Based Rendering, Second Edition: From Theory To Implementation
Interactive hair rendering and appearance editing under environment lighting
Proceedings of the 2011 SIGGRAPH Asia Conference
Importance sampling of area lights in participating media
ACM SIGGRAPH 2011 Talks
An energy-conserving hair reflectance model
EGSR'11 Proceedings of the Twenty-second Eurographics conference on Rendering
Importance sampling for physically-based hair fiber models
SIGGRAPH Asia 2013 Technical Briefs
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We present an importance sampling method for the bidirectional scattering distribution function (bsdf) of hair. Our method is based on the multi-lobe hair scattering model presented by Sadeghi et al. [SPJT10]. We reduce noise by drawing samples from a distribution that approximates the bsdf well. Our algorithm is efficient and easy to implement, since the sampling process requires only the evaluation of a few analytic functions, with no significant memory overhead or need for precomputation. We tested our method in a research raytracer and a production renderer based on micropolygon rasterization. We show significant improvements for rendering direct illumination using multiple importance sampling and for rendering indirect illumination using path tracing. © 2012 Wiley Periodicals, Inc.