Accelerating Refractive Rendering of Transparent Objects

In this paper, a technique is proposed for the rendering of transparent objects interactively using the method of refractive rendering. In the proposed technique, the refractive rendering algorithm is performed in two stages, namely the pre‐computation stage and the shading stage. In the pre‐computa...

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Veröffentlicht in:Computer graphics forum Jg. 26; H. 1; S. 24 - 33
Hauptverfasser: Hui, K. C., Lee, A. H. C., Lai, Y. H.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Oxford, UK Blackwell Publishing Ltd 01.03.2007
Schlagworte:
Crystals
Design
gemstones
I.3.3 Picture/Image Generation: Display algorithms
I.3.7 Three-Dimensional Graphics and Realism: Shading
Image retrieval
Jewelry
jewelry design
Methods
Proposals
ray tracing
Raytracing
refractive rendering
Studies
ISSN:0167-7055, 1467-8659
Online-Zugang:Volltext
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Zusammenfassung:In this paper, a technique is proposed for the rendering of transparent objects interactively using the method of refractive rendering. In the proposed technique, the refractive rendering algorithm is performed in two stages, namely the pre‐computation stage and the shading stage. In the pre‐computation stage, ray‐traced information, including directions and positions of rays, are generated by a ray tracing process and are stored in a set of ray lists. In the shading stage, these data are retrieved from the ray lists for computing the shading of an object. Using the proposed technique, photorealistic image of transparent objects and gemstones with various cuttings, material properties, lighting and background can be rendered interactively. By combining the refractive rendering technique with conventional shading techniques, jewelry and crystal designs can be rendered at a much higher speed comparing with conventional ray tracing techniques.
Bibliographie:istex:D9C69C468344F923090DB9137BCC473D2A0659A2
ark:/67375/WNG-JCLZFHQ7-K
ArticleID:CGF936
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0167-7055
1467-8659
DOI:10.1111/j.1467-8659.2007.00936.x