liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Adaptive Hardware-accelerated Terrain Tessellation
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this master thesis report, a scheme for adaptive hardware terrain tessellation is presented. The scheme uses an offline processing approach where a height map is analyzed in terms of curvature and the result is stored in a resource called density map. This density map is then bound as a resource to the hardware tessellation stage and used to bias the tessellation factor for a given edge. The scheme is implemented inside FrostbiteTM2 by EATM DICETM and produces good results while making the heightfield rendering more efficient. The performance gain can be used to increase the rendering detail, allowing for better visual appearance for the terrain mesh. The scheme is currently implemented for hardware tessellation but could also be used for software terrain mesh generation. The implementation works satisfactory and produces good results with a reasonable speed.

Abstract [sv]

I den här rapporten för examensarbete presenteras en algoritm för att utföra adaptiv hårdvarutessellation av terräng. Algoritmen använder sig av ett offline-steg där ett höjdfält analyseras med avseende på kurvatur och resultatet lagras i en densitets-karta. Den här densitets-kartan används sedan som en resurs i hårdvarutessellationen där den påverkar en tessellationsfaktor för en given triangel-kant. Algoritmen har implementerats i spelmotorn FrostbiteTM2 skapad av EATM DICETM och producerar goda resultat samtidigt som den gör rendering av terrängen effektivare. Detta medf¨or att detaljnivån för terrängrenderingen kanökas, vilket i sin tur leder till en visuell förbättring. Algoritmen är för närvarande endast implementerad för hårdvarutessellation men skulle också kunna användas för mjukvarugenerering av terrängens geometri. Algoritmen fungerar tillfredsställande och producerar goda resultat med en acceptabel hastighet.

Place, publisher, year, edition, pages
2012. , 60 p.
National Category
Media and Communication Technology
Identifiers
URN: urn:nbn:se:liu:diva-91334ISRN: LiU-ITN-TEK-A--12/073--SEOAI: oai:DiVA.org:liu-91334DiVA: diva2:617225
Subject / course
Media Technology
Uppsok
Technology
Supervisors
Examiners
Available from: 2013-04-22 Created: 2013-04-22 Last updated: 2013-04-22Bibliographically approved

Open Access in DiVA

fulltext(1637 kB)206 downloads
File information
File name FULLTEXT01.pdfFile size 1637 kBChecksum SHA-512
28ef10dc92714c36a5f9ec8397941c6b3e074211335f845c0a8299a5bd3e4d7d0a69d229ba20b631dd9534ad5ad25aa8682d8fa308dd151e0baa5d4002a97017
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Cervin, Albert
By organisation
Media and Information TechnologyThe Institute of Technology
Media and Communication Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 206 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 728 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf