Efficient Rendering of Single-Pass Order-Independent Transparency via CUDA Renderer
Author:
Affiliation:

Clc Number:

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    This paper presents a highly efficient algorithm for efficient order-independent transparency via compute unified device architecture (CUDA) in a single geometry pass. The study designs a CUDA renderer system to rasterize the scene by the scan-line algorithm, generating multiple fragments for each pixel. Meanwhile, a fixed size array is allocated per pixel in a GPU (graphics processing unit) global memory for storage. Next, this paper describes two schemes to capture and sorts the fragments per pixel via the atomic operations in CUDA. The first scheme stores the depth values of the fragments into an array of the corresponding pixel and sorts them on the fly using the atomicMin operation in CUDA. A following CUDA kernel will blend the fragments per pixel in depth order. The second scheme captures the fragments in rasterization order using the atomicInc operation in CUDA. During post-processing, the fragments per pixel array will be sorted in depth order before blending. Experimental result shows that this algorithm shows a significant improvement in classical depth peeling, producing faithful results.

    Reference
    Related
    Cited by
Get Citation

黄梦成,刘芳,刘学慧,吴恩华.基于CUDA 渲染器的顺序独立透明现象的单遍高效绘制.软件学报,2011,22(8):1927-1933

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:January 05,2010
  • Revised:August 13,2010
  • Adopted:
  • Online:
  • Published:
You are the firstVisitors
Copyright: Institute of Software, Chinese Academy of Sciences Beijing ICP No. 05046678-4
Address:4# South Fourth Street, Zhong Guan Cun, Beijing 100190,Postal Code:100190
Phone:010-62562563 Fax:010-62562533 Email:jos@iscas.ac.cn
Technical Support:Beijing Qinyun Technology Development Co., Ltd.

Beijing Public Network Security No. 11040202500063