Global ETD Search

1	Rendering with Marching Cubes, looking at Hybrid Solutions / Rendering med Marching Cubes, en närmare titt på hybrid lösningar. Andersson, Patrik, Johansson, Sakarias January 2012 (has links) Marching Cubes is a rendering technique that has many advantages for a lot of areas. It is a technique for representing scalar fields as a three-dimensional mesh. It is used for geographical applications as well as scientific ones, mainly in the medical industry to visually render medical data of the human body. But it's also an interesting technique to explore for the usage in computer games or other real-time applications since it can create some really interesting rendering. The main focus in this paper is to present a novel hybrid solution using marching cubes and heightmaps to render terrain; moreover, to find if it’s suitable for real-time applications. The paper will follow a theoretical approach as well as an implementational one on the hybrid solution. The results across several tests for different scenarios show that the hybrid solution works well for today's real-time applications using a modern graphics card and CPU (Central Processing Unit). marching cubes terrain hybrid hybrid solution rendering heightmaps voxel rendering marching tetrahedrons Computer Sciences Datavetenskap (datalogi) Human Computer Interaction Software Engineering Programvaruteknik
2	Adaptive rendering of celestial bodies in WebGL Zeitler, Jonas January 2015 (has links) This report covers theory and comparison of techniques for rendering massive scale 3D geospa- tial planet data in a web browser. It also presents implementation details of a few of these tech- niques in WebGL and Javascript, using the Three.js [1] 3D library. The thesis project is part of the implementation of Unitea, a web based education platform for interactive astronomy visualizations. Unitea is a derivative of Uniview, which is a fulldome interactive simulation of the universe. A major part of this thesis is dedicated to the implementa- tion of Hierarchical Level of Detail (HLOD) modules for Three.js based on the theory presented by T. Ulrich [2] and later generalized by Cozzi and Ring [3]. HLOD techniques are dynamic level of detail algorithms that represent the surface of objects as accurately as possible from a certain viewing angle. By using space partitioning tree-structures, view based error metrics and culling techniques detailed representations of the objects (in this case planets) can be efficiently rendered in real-time. The modules developed provide a general-purpose library for rendering planets (or other spher- ical objects) with dynamic level of detail in Three.js. The library also features connections to online web map services (WMS) and tile services. WebGL Three.js Javascript HLOD Geometry Clipmaps Planet rendering Level of Detail Real-time rendering Mobile devices Heightmaps Massive terrain Out-of-core rendering GPU programming Astronomy Visualization Web Map Services Datateknik Datateknik Computer Engineering Datorteknik

Search results

Rendering with Marching Cubes, looking at Hybrid Solutions / Rendering med Marching Cubes, en närmare titt på hybrid lösningar.

Adaptive rendering of celestial bodies in WebGL