Atmospheric illumination and shadows
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
Computing the antipenumbra of an area light source
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Illumination from curved reflectors
SIGGRAPH '92 Proceedings of the 19th 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
Theory and application of specular path perturbation
ACM Transactions on Graphics (TOG)
Primitives for computational geometry
Primitives for computational geometry
A practical analytic single scattering model for real time rendering
ACM SIGGRAPH 2005 Papers
Interactive rendering of caustics using interpolated warped volumes
GI '05 Proceedings of Graphics Interface 2005
Simulating multiple scattering in hair using a photon mapping approach
ACM SIGGRAPH 2006 Papers
OpenGL(R) Programming Guide: The Official Guide to Learning OpenGL(R), Version 2 (5th Edition) (OpenGL)
Eikonal rendering: efficient light transport in refractive objects
ACM SIGGRAPH 2007 papers
Radiance caching for participating media
ACM Transactions on Graphics (TOG)
Fogshop: Real-Time Design and Rendering of Inhomogeneous, Single-Scattering Media
PG '07 Proceedings of the 15th Pacific Conference on Computer Graphics and Applications
Interactive relighting of dynamic refractive objects
ACM SIGGRAPH 2008 papers
Real-time smoke rendering using compensated ray marching
ACM SIGGRAPH 2008 papers
Real-time KD-tree construction on graphics hardware
ACM SIGGRAPH Asia 2008 papers
Single scattering in refractive media with triangle mesh boundaries
ACM SIGGRAPH 2009 papers
Interactive volume caustics in single-scattering media
Proceedings of the 2010 ACM SIGGRAPH symposium on Interactive 3D Graphics and Games
Ray maps for global illumination
EGSR'05 Proceedings of the Sixteenth Eurographics conference on Rendering Techniques
Interactive screen-space accurate photon tracing on GPUs
EGSR'06 Proceedings of the 17th Eurographics conference on Rendering Techniques
A hierarchical volumetric shadow algorithm for single scattering
ACM SIGGRAPH Asia 2010 papers
Real-time volumetric shadows using 1D min-max mipmaps
I3D '11 Symposium on Interactive 3D Graphics and Games
Proceedings of the 2011 SIGGRAPH Asia Conference
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
Approximate Bias Compensation for Rendering Scenes with Heterogeneous Participating Media
Computer Graphics Forum
Accurate Translucent Material Rendering under Spherical Gaussian Lights
Computer Graphics Forum
Line segment sampling with blue-noise properties
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Joint importance sampling of low-order volumetric scattering
ACM Transactions on Graphics (TOG)
k-d Darts: Sampling by k-dimensional flat searches
ACM Transactions on Graphics (TOG)
Proceedings of the 18th meeting of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
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We present an efficient technique to render single scattering in large scenes with reflective and refractive objects and homogeneous participating media. Efficiency is obtained by evaluating the final radiance along a viewing ray directly from the lighting rays passing near to it, and by rapidly identifying such lighting rays in the scene. To facilitate the search for nearby lighting rays, we convert lighting rays and viewing rays into 6D points and planes according to their Plücker coordinates and coefficients, respectively. In this 6D line space, the problem of closest lines search becomes one of closest points to a plane query, which we significantly accelerate using a spatial hierarchy of the 6D points. This approach to lighting ray gathering supports complex light paths with multiple reflections and refractions, and avoids the use of a volume representation, which is expensive for large-scale scenes. This method also utilizes far fewer lighting rays than the number of photons needed in traditional volumetric photon mapping, and does not discretize viewing rays into numerous steps for ray marching. With this approach, results similar to volumetric photon mapping are obtained efficiently in terms of both storage and computation.