Zmugg, René ; Havemann, Sven ; Fellner, Dieter W. (2010)
Towards a Voting Scheme for Calculating Light Source Positions from a Given Target Illumination.
Eigth Eurographics Italian Chapter Conference.
doi: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2010/041-048
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Lighting conditions can make the difference between success or failure of an architectural space. The vision of space-light co-design is that architects can control the impression of an illuminated space already at an early design stage, instead of first designing spaces and then searching for a good lighting setup. As a first step towards this vision we propose a novel method to calculate potential light source positions from a given user defined target illumination. The method is independent of the tessellation of the scene and assumes a homogeneous diffuse Lambertian material. This allows using a voting system that determines potential positions for standard light sources with chosen size and brightness. Votes are cast from an illuminated surface point to all potential positions of a light source that would yield this illumination. Vote clusters consequently indicate a more probable light source position. With a slight extension the method can also identify mid-air light source positions.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2010 |
| Autor(en): | Zmugg, René ; Havemann, Sven ; Fellner, Dieter W. |
| Art des Eintrags: | Bibliographie |
| Titel: | Towards a Voting Scheme for Calculating Light Source Positions from a Given Target Illumination |
| Sprache: | Englisch |
| Publikationsjahr: | 2010 |
| Verlag: | Eurographics Association, Goslar |
| Veranstaltungstitel: | Eigth Eurographics Italian Chapter Conference |
| DOI: | 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2010/041-048 |
| Kurzbeschreibung (Abstract): | Lighting conditions can make the difference between success or failure of an architectural space. The vision of space-light co-design is that architects can control the impression of an illuminated space already at an early design stage, instead of first designing spaces and then searching for a good lighting setup. As a first step towards this vision we propose a novel method to calculate potential light source positions from a given user defined target illumination. The method is independent of the tessellation of the scene and assumes a homogeneous diffuse Lambertian material. This allows using a voting system that determines potential positions for standard light sources with chosen size and brightness. Votes are cast from an illuminated surface point to all potential positions of a light source that would yield this illumination. Vote clusters consequently indicate a more probable light source position. With a slight extension the method can also identify mid-air light source positions. |
| Freie Schlagworte: | Forschungsgruppe Semantic Models, Immersive Systems (SMIS), Radiosity, Color textures, Shading |
| Fachbereich(e)/-gebiet(e): | 20 Fachbereich Informatik 20 Fachbereich Informatik > Graphisch-Interaktive Systeme |
| Hinterlegungsdatum: | 12 Nov 2018 11:16 |
| Letzte Änderung: | 04 Feb 2022 12:41 |
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