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Plausible Image Based Soft Shadows Using Occlusion Textures
- Source :
- Proceedings of the Brazilian Symposium on Computer Graphics and Image Processing, 19 (SIBGRAPI), Proceedings of the Brazilian Symposium on Computer Graphics and Image Processing, 19 (SIBGRAPI), IEEE, 2006, Manaus, Brazil, SIBGRAPI
- Publication Year :
- 2006
- Publisher :
- HAL CCSD, 2006.
-
Abstract
- International audience; This paper presents a novel image-based approach to render plausible soft shadows for complex dynamic scenes with rectangular light sources. The algorithm's performance is mostly independent of the scene complexity and the source's size. Occluders and receivers do not need to be separated and no knowledge about the scene representation is required, making the method easy to use. The main idea is to approximate the occlusion in the scene with pre- filtered occlusion textures. The visibility of the light source at a point in space is estimated by accumulating the occlusion caused by each texture, using a novel formula based on probabilities.
- Subjects :
- Texture atlas
Computer science
business.industry
Visibility (geometry)
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
real-time
020207 software engineering
02 engineering and technology
Image-based modeling and rendering
[INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR]
Real-time computer graphics
Computer graphics
Image texture
Occlusion
0202 electrical engineering, electronic engineering, information engineering
soft shadows
020201 artificial intelligence & image processing
Point (geometry)
Computer vision
Artificial intelligence
image-based
business
ComputingMethodologies_COMPUTERGRAPHICS
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Proceedings of the Brazilian Symposium on Computer Graphics and Image Processing, 19 (SIBGRAPI), Proceedings of the Brazilian Symposium on Computer Graphics and Image Processing, 19 (SIBGRAPI), IEEE, 2006, Manaus, Brazil, SIBGRAPI
- Accession number :
- edsair.doi.dedup.....6a5a076a9fd786d1fd0f0b583eaff0f6