Applying Visual Analytics to Physically Based Rendering

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dc.contributor.authorSimons, G.en_US
dc.contributor.authorHerholz, S.en_US
dc.contributor.authorPetitjean, V.en_US
dc.contributor.authorRapp, T.en_US
dc.contributor.authorAment, M.en_US
dc.contributor.authorLensch, H.en_US
dc.contributor.authorDachsbacher, C.en_US
dc.contributor.authorEisemann, M.en_US
dc.contributor.authorEisemann, E.en_US
dc.contributor.editorChen, Min and Benes, Bedrichen_US
dc.date.accessioned2019-03-17T09:56:52Z
dc.date.available2019-03-17T09:56:52Z
dc.date.issued2019
dc.description.abstractPhysically based rendering is a well‐understood technique to produce realistic‐looking images. However, different algorithms exist for efficiency reasons, which work well in certain cases but fail or produce rendering artefacts in others. Few tools allow a user to gain insight into the algorithmic processes. In this work, we present such a tool, which combines techniques from information visualization and visual analytics with physically based rendering. It consists of an interactive parallel coordinates plot, with a built‐in sampling‐based data reduction technique to visualize the attributes associated with each light sample. Two‐dimensional (2D) and three‐dimensional (3D) heat maps depict any desired property of the rendering process. An interactively rendered 3D view of the scene displays animated light paths based on the user's selection to gain further insight into the rendering process. The provided interactivity enables the user to guide the rendering process for more efficiency. To show its usefulness, we present several applications based on our tool. This includes differential light transport visualization to optimize light setup in a scene, finding the causes of and resolving rendering artefacts, such as fireflies, as well as a path length contribution histogram to evaluate the efficiency of different Monte Carlo estimators.Few tools allow a user to gain insight into the algorithmic processes of physically‐based rendering. In this work, we present such a tool, which combines techniques from information visualization and visual analytics with physically based rendering.en_US
dc.description.number1
dc.description.sectionheadersArticles
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume38
dc.identifier.doi10.1111/cgf.13452
dc.identifier.issn1467-8659
dc.identifier.pages197-208
dc.identifier.urihttps://doi.org/10.1111/cgf.13452
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13452
dc.publisher© 2019 The Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectglobal illumination
dc.subjectrendering
dc.subjectvisual analytics
dc.subjectvisualization
dc.subject•Human‐centered computing → Visual analytics; Visualization toolkits; •Computing methodologies → Ray tracing
dc.titleApplying Visual Analytics to Physically Based Renderingen_US
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