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- Nysjö, Fredrik,1985-Uppsala universitet,Avdelningen för visuell information och interaktion,Bildanalys och människa-datorinteraktion (author)
RayCaching : Amortized Isosurface Rendering for Virtual Reality
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- 2019-06-25
- Wiley,2020
- electronicrdacarrier
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- LIBRIS-ID:oai:DiVA.org:uu-398397
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-398397URI
- https://doi.org/10.1111/cgf.13762DOI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- Real‐time virtual reality requires efficient rendering methods to deal with high‐ resolution stereoscopic displays and low latency head‐tracking. Our proposed RayCaching method renders isosurfaces of large volume datasets by amortizing raycasting over several frames and caching primary rays as small bricks that can be efficiently rasterized. An occupancy map in form of a clipmap provides level of detail and ensures that only bricks corresponding to visible points on the isosurface are being cached and rendered. Hard shadows and ambient occlusion from secondary rays are also accumulated and stored in the cache. Our method supports real‐time isosurface rendering with dynamic isovalue and allows stereoscopic visualization and exploration of large volume datasets at framerates suitable for virtual reality applications.
Subject headings and genre
- NATURVETENSKAP Data- och informationsvetenskap Datavetenskap hsv//swe
- NATURAL SCIENCES Computer and Information Sciences Computer Sciences hsv//eng
- ray tracing
- visibility
- point-based models
- virtual reality
- Computerized Image Processing
- Datoriserad bildbehandling
Added entries (persons, corporate bodies, meetings, titles ...)
- Malmberg, Filip,1980-Uppsala universitet,Bildanalys och människa-datorinteraktion,Avdelningen för visuell information och interaktion(Swepub:uu)filma606 (author)
- Nyström, Ingela,1967-Uppsala universitet,Bildanalys och människa-datorinteraktion,Avdelningen för visuell information och interaktion(Swepub:uu)ingenyst (author)
- Uppsala universitetAvdelningen för visuell information och interaktion (creator_code:org_t)
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- In:Computer graphics forum (Print): Wiley39:1, s. 220-2300167-70551467-8659
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