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En studie i spelvegetation: Hur man kan minimera skuggor mellan korsande polygonplan
Luleå University of Technology, Department of Arts, Communication and Education, Media, audio technology and experience production and theater.
2018 (Swedish)Independent thesis Basic level (degree of Bachelor of Fine Arts), 10 credits / 15 HE creditsStudent thesisAlternative title
A study in game foliage : How to reduce shadows on criss-crossing polygon planes (English)
Abstract [sv]

Den här rapporten fokuserar på att ta fram en grund i hur skapandet av spelvegetation med polygonplan som korsar varandra kan göras, utan att få problem med oönskade artefakter och skuggor. Det finns givetvis flertalet metoder för att lösa detta som varierar beroende på vilken typ av ljussättning som implementerats i spelet samt vilken spelmotor som används. I den här undersökningen kommer endast en spelmotor med grund ljussättning användas.Målet var att undersöka flertalet metoder för att nå det önskade resultatet, vilket var fungerande spelvegetation med korsande polygonplan utan några skuggor eller artefakter. Moment som inte ingick i den här undersökningen var ingående undersökningar i hur vertexnormaler fungerar på en mer matematisk nivå, samt hur dessa tekniker kan överföras till andra spelmotorer. För att uppnå dessa mål gjordes en del undersökningar i hur spelvegetations geometri och vertexnormaler påverkar resultatet, samt materialinställningar i den valda spelmotorn.Vikten av en klar bild av vilken typ av spelvegetation som ska skapas innan arbetet påbörjas visade sig tidigt i undersökningen. Organiska och mjuka former är att föredra, och det är även viktigt att kontrollera hur vertexnormalernas riktning påverkar objektet i den valda spelmotorn. I själva spelmotor är det materialet på objektet som har störst inverkan på resultatet, framförallt materialets underlagsfärg. Genom att följa dessa riktlinjer kan målet av spelvegetation, med korsande polygonplan, utan alltför tydliga skuggor och artefakter uppnås.

Abstract [en]

This report focuses on establishing a foundation in how to create game foliage with criss-crossing polygon planes, without getting unwanted artefacts or shadows. There are several different methods to achieve this depending on what kind of lighting the game has implemented, but also which game engine is being used. In this research, only one game engine with basic lighting will be used.The goal was to research several different methods that would give the desired result, which as stated above, was to create working game assets with criss-crossing polygon planes without artefacts. Stages that are not included in this research are how vertex normals work from a mathematics perspective, and how these methods would work in other game engines. Research was focused on how geometry and vertex normals affect the object visual appearance, as well as the impact the material settings in the games engine provided.The survey quickly showed the importance of having a clear vision on what type of game foliage was sought to be created before the work began. Organic and soft shapes are preferred, and it is also important to check how the vertex normals affect the object in the selected game engine. In the game engine itself, it is the material on the object that has the greatest impact on the result, especially the material's subsurface colour. By following these guidelines, the goal was achieving game foliage with less visible shadows and artefact.

Place, publisher, year, edition, pages
2018. , p. 20
Keywords [en]
Game foliage, Shadows, Polygons
Keywords [sv]
Spelvegetation, Skuggor, Polygoner
National Category
Design Visual Arts
Identifiers
URN: urn:nbn:se:ltu:diva-69424OAI: oai:DiVA.org:ltu-69424DiVA, id: diva2:1219596
Subject / course
Student thesis, at least 15 credits
Educational program
Computer Graphic Arts, bachelor's level
Supervisors
Examiners
Available from: 2018-06-19 Created: 2018-06-16 Last updated: 2018-06-19Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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