| Title: | single pass depth peeling via cuda rasterizer |
| Author: | Liuz Fang
; Huang Meng-Cheng
; Liu Xue-Hui
; Wuz En-Hua
|
| Source: | SIGGRAPH 2009: Talks, SIGGRAPH 09
|
| Conference Name: | SIGGRAPH 2009: Talks, SIGGRAPH 09
|
| Conference Date: | August 3,
|
| Issued Date: | 2009
|
| Conference Place: | New Orleans, LA, United states
|
| Keyword: | Computer graphics equipment
; Pipelines
; Pixels
|
| Publish Place: | United States
|
| ISBN: | 9781605588346
|
| Department: | (1) Institute of Software, Chinese Academy of Sciences; (2) University of Macaux
|
| English Abstract: | Multi-fragment effects play important roles on many graphics applications, which require operations on more than one fragment per pixel. The classical depth peeling algorithm [Everitt 2001] peels off one layer each pass, but the performance degrades for large scenes. We prefer to capture multiple fragments in a single pass, which is difficult because the fragments generated in graphics pipeline are not allowed to be scattered to arbitrary positions of the buffers. Compute unified device architecture (CUDA) [NVIDIA 2008] provides more flexible control over the GPU memory, but accessing of the fragments generated by graphics pipeline is not yet supported. In this work we design a CUDA rasterizer so that many graphics applications can benefit from the free control of GPU memory, especially for the multi-fragment effects. We present two efficient schemes to capture and sort multiple fragments per pixel in a single geometry pass via the atomic operations of CUDA without read-modify-write (RMW) hazards. Experimental results show significant speedup to classical depth peeling, especially for large scenes. |
| Content Type: | 会议论文
|
| URI: | http://ir.iscas.ac.cn/handle/311060/8484
|
| 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: | |
Liuz Fang,Huang Meng-Cheng,Liu Xue-Hui,et al. single pass depth peeling via cuda rasterizer[C]. 见:SIGGRAPH 2009: Talks, SIGGRAPH 09. New Orleans, LA, United states. August 3,.
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