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REAL-TIME RENDERING OF DEFORMABLE SNOW COVERS
Umeå University, Faculty of Science and Technology, Department of Computing Science.
2019 (English)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Rendering snow environments in real-time requires e‚ffective methods for representing the snow and its properties. ‘This thesis explores methods for rendering deformable snow covers, where a dynamic heightfi€eld is used for storing snow heights. Collision detection for cylinder geometries is used to generate tyretracks from wheels. A depth buff‚er is used to make the snow follow the shap eof the terrain and the midpoint displacement algorithm to initialise values for the snow. Diff‚erent methods for triangulating the height€field are considered and the eff‚ects of changing the resolution of both the height€field and the underlying vertex grid are tested. Th‘e tests are run in a simulated environment.

Th‘e results show that height€fields in combination with collision detection for geometric primitives is a promising representation for deformable snow covers, both in regards to visual results and performance. However, some visual artefacts arise because of the heightfi€eld triangulation and representation of vertex normals. Regarding performance, the computational and rendering times seem to increase exponentially with the heightfi€eld resolution. Th‘e tests also show that the implementations reach the required frame rates for real-time rendering.

Place, publisher, year, edition, pages
2019. , p. 58
Series
UMNAD ; 1218
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:umu:diva-165167OAI: oai:DiVA.org:umu-165167DiVA, id: diva2:1369637
External cooperation
Oryx Simulations
Educational program
Master of Science Programme in Computing Science and Engineering
Supervisors
Examiners
Available from: 2019-11-12 Created: 2019-11-12 Last updated: 2019-11-12Bibliographically approved

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CiteExportLink to record
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  • apa
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