Hermanns, Lukas (2015)
Screen Space Cone Tracing for Glossy Reflections.
Technische Universität Darmstadt
Bachelorarbeit, Bibliographie
Kurzbeschreibung (Abstract)
Indirect lighting (also Global Illumination (GI)) is an important part of photo-realistic imagery and has become a widely used method in real-time graphics applications, such as Computer Aided Design (CAD), Augmented Realtiy (AR) and video games. Path tracing can already achieve photorealism by shooting thousands or millions of rays into a 3D scene for every pixel, which results in computational overhead exceeding real-time budgets. However, with modern programmable shader pipelines, a fusion of ray-casting algorithms and rasterization is possible, i.e. methods, which are similar to testing rays against geometry, can be performed on the GPU within a fragment (or rather pixel-) shader. Nevertheless, many implementations for real-time GI still trace perfect specular reflections only. In this Bachelor thesis the advantages and disadvantages of different reflection methods are exposed and a combination of some of these is presented, which circumvents artifacts in the rendering and provides a stable, temporally coherent image enhancement. The benefits and failings of this new method are clearly separated as well. Moreover the developed algorithm can be implemented as pure post-process, which can easily be integrated into an existing rendering pipeline. The core idea of this thesis has been presented as a poster at SIGGRAPH 2014 Hermanns and Franke, 2014.
| Typ des Eintrags: | Bachelorarbeit |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Hermanns, Lukas |
| Art des Eintrags: | Bibliographie |
| Titel: | Screen Space Cone Tracing for Glossy Reflections |
| Sprache: | Englisch |
| Publikationsjahr: | 2015 |
| Kurzbeschreibung (Abstract): | Indirect lighting (also Global Illumination (GI)) is an important part of photo-realistic imagery and has become a widely used method in real-time graphics applications, such as Computer Aided Design (CAD), Augmented Realtiy (AR) and video games. Path tracing can already achieve photorealism by shooting thousands or millions of rays into a 3D scene for every pixel, which results in computational overhead exceeding real-time budgets. However, with modern programmable shader pipelines, a fusion of ray-casting algorithms and rasterization is possible, i.e. methods, which are similar to testing rays against geometry, can be performed on the GPU within a fragment (or rather pixel-) shader. Nevertheless, many implementations for real-time GI still trace perfect specular reflections only. In this Bachelor thesis the advantages and disadvantages of different reflection methods are exposed and a combination of some of these is presented, which circumvents artifacts in the rendering and provides a stable, temporally coherent image enhancement. The benefits and failings of this new method are clearly separated as well. Moreover the developed algorithm can be implemented as pure post-process, which can easily be integrated into an existing rendering pipeline. The core idea of this thesis has been presented as a poster at SIGGRAPH 2014 Hermanns and Franke, 2014. |
| Freie Schlagworte: | Business Field: Visual decision support, Research Area: Computer graphics (CG), Realtime 3D graphics, Global illumination, Shaders, Ray casting |
| Fachbereich(e)/-gebiet(e): | 20 Fachbereich Informatik 20 Fachbereich Informatik > Graphisch-Interaktive Systeme |
| Hinterlegungsdatum: | 21 Mai 2019 11:03 |
| Letzte Änderung: | 21 Mai 2019 11:03 |
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