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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5191

Title: Extending backward polygon beam tracing to glossy scattering surfaces
Authors: Duvenhage, B
Bouatouch, K
Kourie, DG
Keywords: Backward beam tracing
Caustics
Glossy scattering
Lumped transport model
Polygon beam tracing
Computer graphics
Issue Date: May-2011
Publisher: Blackwell Publishing
Citation: Duvenhage, B, Bouatouch, K and Kourie, DG. 2011. Extending backward polygon beam tracing to glossy scattering surfaces. Computer Graphics Forum, Vol. DOI: 10.1111/j.1467-8659.2011.01903.x, pp 1-12
Series/Report no.: Workflow request;6727
Abstract: Backward polygon beam tracing methods, that is beam tracing from the light source (L), are well suited to gather path coherency from specular (S) scattering surfaces. These methods are useful for modelling and efficiently simulating caustics on diffuse (D) surfaces; an effect due to LS + D transport paths. This paper generalizes backward polygon beam tracing to include a glossy (G) scattering surface. To this end the details of a beam tracing lumped model and implementation of L(S|G)D transport paths are presented. Although we limit the discussion to short transport paths, we show that backward beam tracing is faster than photon mapping by an order of magnitude for rendering caustics from glossy and specular surfaces.
Description: Copyright: 2011 The Authors
URI: http://onlinelibrary.wiley.com/doi/10.1111/j.1467-8659.2011.01903.x/pdf
http://hdl.handle.net/10204/5191
ISSN: 0167-7055
1467-8659
Appears in Collections:Optronic sensor systems
Advanced mathematical modelling and simulation
General science, engineering & technology

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