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|a eng
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|a Jiawei Ou
|e verfasserin
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|a Evaluating progressive-rendering algorithms in appearance design tasks
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|c 2013
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|a Date Completed 30.03.2015
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|a Date Revised 08.05.2014
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Progressive rendering is becoming a popular alternative to precomputational approaches to appearance design. However, progressive algorithms create images exhibiting visual artifacts at early stages. A user study investigated these artifacts' effects on user performance in appearance design tasks. Novice and expert subjects performed lighting and material editing tasks with four algorithms: random path tracing, quasirandom path tracing, progressive photon mapping, and virtual-point-light rendering. Both the novices and experts strongly preferred path tracing to progressive photon mapping and virtual-point-light rendering. None of the participants preferred random path tracing to quasirandom path tracing or vice versa; the same situation held between progressive photon mapping and virtual-point-light rendering. The user workflow didn’t differ significantly with the four algorithms. The Web Extras include a video showing how four progressive-rendering algorithms converged (at http://youtu.be/ck-Gevl1e9s), the source code used, and other supplementary materials
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|a Karlik, Ondrej
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|a Křivánek, Jaroslav
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|a Pellacini, Fabio
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|t IEEE computer graphics and applications
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|g 33(2013), 6 vom: 10. Nov., Seite 58-68
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