SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
SIGGRAPH '89 Proceedings of the 16th annual conference on Computer graphics and interactive techniques
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Interactive Design of Complex Time-Dependent Lighting
IEEE Computer Graphics and Applications
Metropolis Light Transport for Participating Media
Proceedings of the Eurographics Workshop on Rendering Techniques 2000
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
All-frequency shadows using non-linear wavelet lighting approximation
ACM SIGGRAPH 2003 Papers
Robust monte carlo methods for light transport simulation
Robust monte carlo methods for light transport simulation
Real-time BRDF editing in complex lighting
ACM SIGGRAPH 2006 Papers
Interactive relighting with dynamic BRDFs
ACM SIGGRAPH 2007 papers
Modeling and rendering of heterogeneous translucent materials using the diffusion equation
ACM Transactions on Graphics (TOG)
Interactive multiple anisotropic scattering in clouds
Proceedings of the 2008 symposium on Interactive 3D graphics and games
A precomputed polynomial representation for interactive BRDF editing with global illumination
ACM Transactions on Graphics (TOG)
Simulating knitted cloth at the yarn level
ACM SIGGRAPH 2008 papers
SubEdit: a representation for editing measured heterogeneous subsurface scattering
ACM SIGGRAPH 2009 papers
Precomputation-Based Rendering
Precomputation-Based Rendering
A radiative transfer framework for rendering materials with anisotropic structure
ACM SIGGRAPH 2010 papers
Building volumetric appearance models of fabric using micro CT imaging
ACM SIGGRAPH 2011 papers
ACM Transactions on Graphics (TOG) - SIGGRAPH 2012 Conference Proceedings
A volumetric approach to predictive rendering of fabrics
EGSR'11 Proceedings of the Twenty-second Eurographics conference on Rendering
Microfacet models for refraction through rough surfaces
EGSR'07 Proceedings of the 18th Eurographics conference on Rendering Techniques
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Materials such as clothing or carpets, or complex assemblies of small leaves, flower petals, or mosses, do not fit well into either BRDF or BSSRDF models. Their appearance is a complex combination of reflection, transmission, scattering, shadowing, and inter-reflection. This complexity can be handled by simulating the full volumetric light transport within these materials by Monte Carlo algorithms, but there is no easy way to construct the necessary distributions of local material properties thatwould lead to the desired global appearance. In this article, we consider one way to alleviate the problem: an editing algorithm that enables a material designer to set the local (singlescattering) albedo coefficients interactively, and see an immediate update of the emergent appearance in the image. This is a difficult problem, since the function from materials to pixel values is neither linear nor low-order polynomial. We combine the following two ideas to achieve high-dimensional heterogeneous edits: precomputing the homogeneous mapping of albedo to intensity, and a large Jacobian matrix, which encodes the derivatives of each image pixel with respect to each albedo coefficient. Combining these two datasets leads to an interactive editing algorithm with a very good visual match to a fully path-traced ground truth.