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| single pass depth peeling via cuda rasterizer | |
| Liuz Fang; Huang Meng-Cheng; Liu Xue-Hui; Wuz En-Hua | |
| 2009 | |
| Conference Name | SIGGRAPH 2009: Talks, SIGGRAPH 09 |
| Source | SIGGRAPH 2009: Talks, SIGGRAPH 09 |
| Conference Date | August 3, |
| Conference Place | New Orleans, LA, United states |
| 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. |
| Keyword | Computer Graphics Equipment Pipelines Pixels |
| Content Type | 会议论文 |
| URI | http://ir.iscas.ac.cn/handle/311060/8484 |
| Collection | 基础软件与系统重点实验室 |
| Recommended Citation GB/T 7714 | Liuz Fang,Huang Meng-Cheng,Liu Xue-Hui,et al. single pass depth peeling via cuda rasterizer[C]. United States,2009. |
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