ACM Transactions on Graphics (TOG)
Predicting reflectance functions from complex surfaces
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Multi-pass pipeline rendering: realism for dynamic environments
Proceedings of the 1997 symposium on Interactive 3D graphics
An image-based model for realistic lens systems in interactive computer graphics
Proceedings of the conference on Graphics interface '97
Environment matting and compositing
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
An improved illumination model for shaded display
Communications of the ACM
Light field mapping: efficient representation and hardware rendering of surface light fields
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Proceedings of the 12th Eurographics Workshop on Rendering Techniques
Transparency for computer synthesized images
SIGGRAPH '79 Proceedings of the 6th annual conference on Computer graphics and interactive techniques
Beam tracing polygonal objects
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
Clustered principal components for precomputed radiance transfer
ACM SIGGRAPH 2003 Papers
Graphics gems revisited: fast and physically-based rendering of gemstones
ACM SIGGRAPH 2004 Papers
Real-time reflection mapping with parallax
Proceedings of the 2005 symposium on Interactive 3D graphics and games
An approximate image-space approach for interactive refraction
ACM SIGGRAPH 2005 Papers
Light field techniques for reflections and refractions
EGWR'99 Proceedings of the 10th Eurographics conference on Rendering
Accelerated, high-quality refraction computations for volume graphics
VG'05 Proceedings of the Fourth Eurographics / IEEE VGTC conference on Volume Graphics
Real-time refraction through deformable objects
Proceedings of the 2007 symposium on Interactive 3D graphics and games
Interactive refractions with total internal reflection
GI '07 Proceedings of Graphics Interface 2007
CGIM '07 Proceedings of the Ninth IASTED International Conference on Computer Graphics and Imaging
Realistic water volumes in real-time
NPH'06 Proceedings of the Second Eurographics conference on Natural Phenomena
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Accurate refraction, thanks to raytracing, has always been a popular effect in computer graphics imagery. However, its use has been severely hindered in interactive rendering due to the lack of efficient and realistic techniques geared toward polygon oriented rendering.In this paper, a method to achieve realistic and interactive refractive effects through complex static geometry is proposed. It relies on an offline step where many light paths through the object are pre-evaluated. During rendering, these precomputed paths are used to provide approximations of actual refracted paths through the geometry, enabling further sampling of an environment map. Light paths valuable information, namely final output direction when leaving refractive object, is compressed using frequency domain based spherical harmonics. The matching decompression procedure, entirely offloaded onto graphics hardware, is handled at interactive speed.