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Title:
multi-layer depth peeling via fragment sort
Author: Liu Baoquan ; Wei Li-Yi ; Xu Ying-Qing ; Wu Enhua
Source: Proceedings - 2009 11th IEEE International Conference on Computer-Aided Design and Computer Graphics, CAD/Graphics 2009
Conference Name: 11th International Conference on Computer-Aided Design and Computer Graphics
Conference Date: AUG 19-21,
Issued Date: 2009
Conference Place: Yellow Mountain City, PEOPLES R CHINA
Keyword: GPU ; MRT ; RGBA8 color precision ; fragment sort program ; graphics hardware ; multilayer accelerated depth peeling algorithm ; multiple fragment color ; multiple fragment depth ; order-independent transparency scene rendering ; transparency ordering ; transparent geometry ; transparent pixel ; unreliable parallel read-after-write behavior ; colour graphics ; computational geometry ; rendering (computer graphics) ; sorting
Publisher: 2009 11TH IEEE INTERNATIONAL CONFERENCE ON COMPUTER-AIDED DESIGN AND COMPUTER GRAPHICS, PROCEEDINGS
Publish Place: 345 E 47TH ST, NEW YORK, NY 10017 USA
ISBN: 978-1-4244-3700-9
Department: Liu, Baoquan; Wu, Enhua Chinese Acad Sci, Inst Software, Beijing 100864, Peoples R China.
Sponsorship: IEEE, Natl Nat Sci Fdn China, Zhejiang Prov
English Abstract: We present an accelerated depth peeling algorithm for order-independent transparency rendering on graphics hardware. Unlike traditional depth peeling which only peels one layer of transparent pixels per rendering pass, our algorithm peels multiple layers simultaneously per rendering pass. Our acceleration is achieved via our fragment program which sorts and writes multiple fragment colors and depths via MRT. A notable :feature of our algorithm is that it is robust against the unreliable parallel read-after-write behavior in current graphics hardware, guaranteeing correct transparency ordering. For ordinary scenes rendered under RGBA8 color precision, we achieve up to 8 x speed-up over conventional depth peeling with current generation graphics hardware. Our algorithm is simple to implement on current GPU without any hardware modification. In addition, it does not require applications to perform any pre-sorting of transparent geometry.
Content Type: 会议论文
URI: http://ir.iscas.ac.cn/handle/311060/8240
Appears in Collections:计算机科学国家重点实验室 _会议论文

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Recommended Citation:
Liu Baoquan,Wei Li-Yi,Xu Ying-Qing,et al. multi-layer depth peeling via fragment sort[C]. 见:11th International Conference on Computer-Aided Design and Computer Graphics. Yellow Mountain City, PEOPLES R CHINA. AUG 19-21,.
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