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Rendering CSG scenes with general antialiasing
Abstract : Ray-tracing is one of the most popular techniques for rendering 3D images. Effects such as shadows, reflection, refraction and so on can e produced with this technique. However, ray-tracing is a point-sampling technique with well-known aliasing problems. In particular, small objects and small shadows can be hidden between rays and not be detected. No ray-tracing method, even using oversamplin , can solve this problem entirely. The solution is to use an extension of ray-tracing in which the concept of the infinitesimal ray is replaced by that of the beam, which has a volume of the scene. Beam-tracing is more complex than ray-tracing: in particular because of the beam-object intersection computations. So beam-tracers are usually limited to polygonal objects. The method presented here is a beam-tracer with no explicit beam-object intersection computations; so it can be used for rendering CSG scenes with antialiasing.
Cited literature [5 references]
https://hal.inria.fr/inria-00510116
Contributor : Team Evasion <>
Submitted on : Tuesday, August 17, 2010 - 3:17:09 PM
Last modification on : Friday, June 26, 2020 - 4:04:02 PM
Document(s) archivé(s) le : Thursday, November 18, 2010 - 3:08:07 AM
Contributor : Team Evasion <>
Submitted on : Tuesday, August 17, 2010 - 3:17:09 PM
Last modification on : Friday, June 26, 2020 - 4:04:02 PM
Document(s) archivé(s) le : Thursday, November 18, 2010 - 3:08:07 AM
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CSG96.pdf
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