| Presentation | 2005-02-04 Dynamic Shadow Map Generation Based on the Relationship between Viewpoint and Object Tomohide IWAO, Msayuki KANBARA, Naokazu YOKOYA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Many algorithms which draw a shadow in real time have been proposed in computer graphics field. The most famous method among them is the shadow map method which calculates the distance from a light source to objects in advance. and stores the results in the buffer called shadow map. However there is an aliasing problem caused by the low resolution of the shadow map allocated to the object in the scene. which depends on the relationship between viewpoint and objects. This paper describes a technique which can cope with the aliasing problem by generating a shadow map dynamically according to the relationship between viewpoint and objects. In experiments, the proposed method is applied to the conventional shadow map method and the perspective shadow map method which assigns a shadow map in consideration of the distance from a viewpoint to objects. Finally we discuss the usefulness of the proposed method based on the results of rendering images and processing time. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | shadow map method / dynamic shadow map generation / perspective shadow map method / real time rendering |
| Paper # | ITS2004-80,IE2004-214 |
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| Conference Information | |
| Committee | ITS |
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| Conference Date | 2005/1/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Intelligent Transport Systems Technology (ITS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Dynamic Shadow Map Generation Based on the Relationship between Viewpoint and Object |
| Sub Title (in English) | |
| Keyword(1) | shadow map method |
| Keyword(2) | dynamic shadow map generation |
| Keyword(3) | perspective shadow map method |
| Keyword(4) | real time rendering |
| 1st Author's Name | Tomohide IWAO |
| 1st Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology() |
| 2nd Author's Name | Msayuki KANBARA |
| 2nd Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology |
| 3rd Author's Name | Naokazu YOKOYA |
| 3rd Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology |
| Date | 2005-02-04 |
| Paper # | ITS2004-80,IE2004-214 |
| Volume (vol) | vol.104 |
| Number (no) | 647 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |