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Procedural Generation of Volumetric Data for Terrain
KTH, School of Electrical Engineering and Computer Science (EECS).
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

A procedural method is proposed to generate volumetric data for terrain using a surface height map and information about materials as input. In contrast to previous explored methods this approach takes advantage of the extensive research on surface terrain generation by adapting the material layers to the topology of the input terrain. The method allows the user to specify materials as stratified or eroded, which are generated differently: stratified materials are stacked to generate material layers while eroded materials accumulate on even terrain. We compare a thermal erosion method and an original approach that uses information about the slope of the terrain as a shortcut to generate eroded layers and performs significantly better. The advantages and drawbacks of each technique are explored and discussed.

Abstract [sv]

En proceduell metod har framställts för att generera volymdata för terränger med hjälp av en höjdkarta samt information om terrängens material. Till skillnad från tidigare metoder har följande nyttjat den omfattande forskningen kring genererad terräng. Det här genom att anpassa materialens lager till terrängens topologi. Metoden tillåter användaren att specifiera materialen som stratifierade eller eroderade, vilket genereras olika: stratifierat material staplas och generar på så vis materialen i lager, medan eroderat material samlas på jämn terräng. Vi jämför en termisk erosionsmetod med originellt tillvägagångssätt som nyttjar användarinformation om terrängens lutning som en genväg till att generera eroderade lager samt presterar signifikant bättre. Fördelar samt nackdelar med båda teknikerna utforskas och diskuteras.

Place, publisher, year, edition, pages
2019. , p. 10
Series
TRITA-EECS-EX ; 2019:439
Keywords [en]
procedural terrain generation, volumetric terrain, thermal erosion, procedural modelling
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:kth:diva-260320OAI: oai:DiVA.org:kth-260320DiVA, id: diva2:1355216
Supervisors
Examiners
Available from: 2019-10-18 Created: 2019-09-27 Last updated: 2019-10-18Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • Other locale
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Output format
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