Interactive VPL-based global illumination on the GPU using fuzzy clustering
Physically-based synthesis of high quality imagery, including global illumination light transport phenomena, results in a significant workload, which makes interactive rendering a very challenging task. We propose a VPL-based ray tracing approach that runs entirely in the GPU and achieves interactiv...
| Authors: | ; ; |
|---|---|
| Format: | Article |
| Status: | Published version |
| Publication date: | 2022 |
| Country: | España |
| Institution: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repository: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/192282 |
| Online Access: | https://hdl.handle.net/2445/192282 |
| Access Level: | Open access |
| Keyword: | Infografia Algorismes computacionals Computer graphics Computer algorithms |
| _version_ | 1878729820282552320 |
|---|---|
| author | Colom, Arnau |
| author2 | Rodrigues Sepúlveda Marques, Ricardo Jorge Santos, Luís Paulo |
| author2_role | author author |
| author_browse | Colom, Arnau Rodrigues Sepúlveda Marques, Ricardo Jorge Santos, Luís Paulo |
| author_facet | Colom, Arnau Rodrigues Sepúlveda Marques, Ricardo Jorge Santos, Luís Paulo |
| author_role | author |
| collection | Recercat. Dipósit de la Recerca de Catalunya |
| description | Physically-based synthesis of high quality imagery, including global illumination light transport phenomena, results in a significant workload, which makes interactive rendering a very challenging task. We propose a VPL-based ray tracing approach that runs entirely in the GPU and achieves interactive frame rates while handling global illumination light transport phenomena. This approach is based on clustering both shading points and VPLs and computing visibility only among clusters' representatives. A new massively parallel K-means clustering algorithm, enables efficient execution in the GPU. Rendering artifacts, that could result from the piecewise constant approximation of the VPLs/shading points visibility function introduced by the clustering, are smoothed away by resorting to an innovative approach based on fuzzy clustering and weighted interpolation of the visibility function. The effectiveness of the proposed approach is experimentally verified for a collection of scenes, with frame rates larger than 3 fps and up to 25 fps being demonstrated. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_0fb283de6ae83ae8ea89ee5618bcbba3 |
| institution | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| instname_str | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:recercat.cat:2445/192282 |
| publishDate | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| reponame_str | Recercat. Dipósit de la Recerca de Catalunya |
| spelling | Interactive VPL-based global illumination on the GPU using fuzzy clustering Colom, Arnau Rodrigues Sepúlveda Marques, Ricardo Jorge Santos, Luís Paulo Infografia Algorismes computacionals Computer graphics Computer algorithms Physically-based synthesis of high quality imagery, including global illumination light transport phenomena, results in a significant workload, which makes interactive rendering a very challenging task. We propose a VPL-based ray tracing approach that runs entirely in the GPU and achieves interactive frame rates while handling global illumination light transport phenomena. This approach is based on clustering both shading points and VPLs and computing visibility only among clusters' representatives. A new massively parallel K-means clustering algorithm, enables efficient execution in the GPU. Rendering artifacts, that could result from the piecewise constant approximation of the VPLs/shading points visibility function introduced by the clustering, are smoothed away by resorting to an innovative approach based on fuzzy clustering and weighted interpolation of the visibility function. The effectiveness of the proposed approach is experimentally verified for a collection of scenes, with frame rates larger than 3 fps and up to 25 fps being demonstrated. Elsevier https://hdl.handle.net/2445/192282 |
| spellingShingle | Interactive VPL-based global illumination on the GPU using fuzzy clustering Colom, Arnau Infografia Algorismes computacionals Computer graphics Computer algorithms |
| status_str | publishedVersion |
| title | Interactive VPL-based global illumination on the GPU using fuzzy clustering |
| title_full | Interactive VPL-based global illumination on the GPU using fuzzy clustering |
| title_fullStr | Interactive VPL-based global illumination on the GPU using fuzzy clustering |
| title_full_unstemmed | Interactive VPL-based global illumination on the GPU using fuzzy clustering |
| title_short | Interactive VPL-based global illumination on the GPU using fuzzy clustering |
| title_sort | Interactive VPL-based global illumination on the GPU using fuzzy clustering |
| topic | Infografia Algorismes computacionals Computer graphics Computer algorithms |
| topic_facet | Infografia Algorismes computacionals Computer graphics Computer algorithms |
| url | https://hdl.handle.net/2445/192282 |