Dagens grafikkort är uppbyggda av kraftfulla multiprocessorer som gör dom ypperliga för att hantera parallelliserbara problem som skulle ta lång tid att utföra på en vanlig processor, så som exempelvis Level-of-detail eller raytracing.Denna rapport presenterar en parallelliserbar Level-of-detail algoritm för terränghöjdkartor samt implementerar denna för användning på grafikkort användande Nvidias CUDA API. Algoritmen delar upp den totala höjdkartan i sektioner som ytterligare delas upp i mindre block som beräknas parallellt på grafikkortet. Algoritmen räknar ut vertexpositioner, normaler och texturkoordinater för vardera block och skickar datan till applikationen som skapar vertex och indexbuffertar och renderar sektionerna. Implementationens prestanda och förmåga att reducera trianglar analyseras med två olika sorters culling-metoder; en metod som gallrar trianglar på sektionsnivå och en metod som gallrar på blocknivå.Resultaten visar att det är mycket fördelaktigt att låta grafikkortet hantera Level-of-detail beräkningar på detta vis även om minneskopiering över grafikkortsbussen är ett problem, då det tar upp ungefär åttiofem procent av den totala tiden för att hantera en sektion. Beräkningarna i sig tar väldigt lite tid och det finns gott om utrymme för utveckling för att uppnå en så bra fördelningen av trianglar över terrängområdet som möjligt..

Denna rapport presenterar ett alternativt sätt att ljussätta terräng i datorgrafik. Tidigare modeller har vanligtvis byggt på lokal ljussättning, som inte tar hänsyn till kringliggande geometri, och har med en extra process approximerat effekten av ljusinteraktionen. Genom att använda sig av en teknik som kallas precomputed radiance transfer (PRT) kan man förberäkna hur en punkt interagerar med ljus för olika inkommande riktningar och undviker därmed att göra detta under programkörningen. Det är viktigt att denna teknik även fungerar tillsammans med Level-of-detail (LOD) terrängrenderingsalgoritmer eftersom rendering av alla trianglar i terrängen för varje skärmuppdatering inte är optimalt för dagens grafikkort. Man vill därför representera den underliggande terrängen med fler trianglar närmare betraktaren och färre längre bort.

To render outdoor scenes with lots of vegetation in real time is a big challenge. This problem has important applications in the areas of visualization and simulation. Some progress has been made the last years, but a previously unsolved difficulty has been to combine high rendering quality with abundant variation in scenes. I present a method to mathematically generate and render vegetation in real time, with implementation in the scene graph Gizmo3D. The most important quality of the method is its ability to render scenes with many unique specimens with very low aliasing.

Three-dimensional computer graphics enjoys a wide range of applications of which games and movies are only few examples. By incorporating three-dimensional computer graphics in to a simulator the simulator is able to provide the operator with visual feedback during a simulation. Simulators come in many different flavors where flight and radar simulators are two types in which three-dimensional rendering of large terrains constitutes a central component.Ericsson Microwave Systems (EMW) in Skövde is searching for an algorithm that (a) can handle terrain data that is larger than physical memory and (b) has an adjustable error metric that can be used to reduce terrain detail level if an increase in load on other critical parts of the system is observed. The aim of this paper is to identify and evaluate existing algorithms for terrain rendering in order to find those that meet EMW: s requirements. The objectives are to (i) perform a literature survey over existing algorithms, (ii) implement these algorithms and (iii) develop a test environment in which these algorithms can be evaluated form a performance perspective.The literature survey revealed that the algorithm developed by Lindstrom and Pascucci (2001) is the only algorithm of those examined that succeeded to fulfill the requirements without modifications or extra software.

Previous research in the field of consumer marketing has confirmed the positive effects of divergence on advertising efficiency. Despite the coherent evidence, some industries lag in the adoption of these findings, one of which is the Swedish real estate market. Divergence has not been elaborately investigated within said context and this paper addresses the need of actionable insights for housing advertising. Starting with the proven success of housing firm Fantastic Frank who work with detail photos in contrast to the common wide angle, this paper examines theoretical implications of detail photos' characteristics. Besides being divergent, detail photos are also ambiguous which renders access to effects related to visual perception.

Det här examensarbetet utfördes från februari till mitten av april, våren 2010 på företaget Junebud. Jag arbetade efter hypotesen att en stark närvaro på sociala medier har en positiv effekt på aktiviteten på spelets hemsida samt för att få nya spelare att hitta till spelet. Spelet som marknadsfördes heter MilMo och är ett socialt massivt multiplayer spel för barn och ungdomar, som är gratis att spela. Om spelaren vill få tillgång till extra material kan han/hon betala en mindre summa pengar men något köptvång föreligger ej för att endast spela. För att genomföra marknadsföringen på de sociala medierna valdes fyra stycken nätverk på Internet ut; Facebook, Deviantart, MySpace och Youtube.

This Bachelor?s thesis consists of two parts; one with prefabrication (prefab) in focus and thesecond part includes detail design of a house project. These parts are linked together by designingsome parts of the house project as prefabricated.The focus section investigates how prefabrication can act time-, costs- and environmentallyeffective to a building project. This is investigated by combining literary sources with sourcesbased on reality in the shape of interviews. The result of the investigation is that prefabcould acteffectively on previously mentioned factors,if this way of building is used in a proper way.The detail design of the house started in a residential area with a new local plan in Huddinge,named Sjöängen II.

Producing a building is a long and complex process. It consists of several parts, from the feasibility study and design stage onto the construction and finally the management of the building. The design process is a critical part of the process where construction plans are made. The quality of the plans affect the production phase in great extent and faulty plans can pose a risk for extra costs for all parts in the process. The cost of producing dwellings has increased the last years and the detail design process is one of many phases where improvements can mean cost savings within the whole building process.This report aims to point at parts within the detail design process which could be more efficient, regarding communication, follow-up and time planning, and to give suggestions for improvements.

This thesis work resulted in a template for how the thermal spray process can be controlled through robot programs. The robots today and their programs need to be replaced, therefore a new structure which can be matched with the new robot systems is needed. The work is limited to only concern structured programming on the new robots on Thermal Spray Centre (TC) with the programming language Rapid. The basic data for the program was retrieved from interviews with concerned personnel at TC, from studies on process parameters for thermal spray and from existing specifications at Volvo Aero Corporation (VAC). The thesis work briefly describes the process thermal spray and the four methods used at VAC.

This paper examines the European Commission?s, newly established, ?Register of interest representatives? The analysis is divided in two parts, first I analyze the registers purpose, the kind, and detail, of information it contains and the different kinds of groups that are supposed to register. After that I analyze the organizations in the register more thoroughly, using a database of my own creation. The database was constructed with information drawn from the register, as well as information from external sources. Regarding the design and purpose of the register, I find that improvements in the design are needed, if the register is to fulfill its purpose.

This thesis work resulted in a template for how the thermal spray process can be controlled through robot programs. The robots today and their programs need to be replaced, therefore a new structure which can be matched with the new robot systems is needed. The work is limited to only concern structured programming on the new robots on Thermal Spray Centre (TC) with the programming language Rapid. The basic data for the program was retrieved from interviews with concerned personnel at TC, from studies on process parameters for thermal spray and from existing specifications at Volvo Aero Corporation (VAC). The thesis work briefly describes the process thermal spray and the four methods used at VAC.

AbstractThis report is made in cooperation with the municipality of Vasteras and technical committeestaff. The report addresses several topics that affect fuel stations in Vasteras. The reportcontains two parts, first is a inventory that review all stations in the area to be addressed. Theinventory is made with consideration to various things that geographic situation, whatcompanies are represented and what level of service stations have. And the second part of thereport, is done with the analysis of how it looks in daily situations review.

AbstractThis report is made in cooperation with the municipality of Vasteras and technical committeestaff. The report addresses several topics that affect fuel stations in Vasteras. The reportcontains two parts, first is a inventory that review all stations in the area to be addressed. Theinventory is made with consideration to various things that geographic situation, whatcompanies are represented and what level of service stations have. And the second part of thereport, is done with the analysis of how it looks in daily situations review.

In this master thesis we suggest a recreational directed forest management plan for the Skedalaskogen. The forest is situated 10 kilometres east of the city of Halmstad and is owned by the municipality. We have in literature and in research investigated what people like and want in the forest, how to manage the forest for recreation according to for example tree species, mixtures and density. We tried to adapt the forestry methods more to recreational thinking. We have also looked at issues like what is rare and not rare in this part of the country according to nature and forest, where people live and which connection they have to the Skedalaskogen. The Skedalaskogen is a quite big area, totally 830 hectares. The area have about 100 000 visitors a year.

This thesis investigates how the level of implementation of New Public Management affects an organization?s efficiency. According to theory, a high level of implementation leads to a more efficient organization. This thesis is based on two case studies conducted on two units within Stockholms Stad. One of the units shows a high level of implementation of NPM and a high level of efficiency.