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Technology of Graphic & Image
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App. Res. of Comp. Printed Article
Vol. 37, 2020 No. 2
578-583

VCT global illumination algorithm based on cascade voxel texture

Zhang Jing1,2,3
Wang He1
Zhang Xiaodong1
1. College of Computer Science & Technology, Harbin Engineering University, Harbin 150006, China
2. College of Engineering, Shantou University, Shantou Guangdong 515063, China
3. School of Information Science & Engineering, University of Jinan, Jinan 250022, China
DOI: 10.19734/j.issn.1001-3695.2018.06.0573

Abstract

To solve the problem that the global illumination rendering of large scale scene can't meet the real-time requirement, this paper proposed a VCT global illumination algorithm. The algorithm included: a) In the phase of voxelization, this paper proposed a novel scene illumination information representation structure called cascade voxel textures, which could not only greatly reduce the memory consumption of the storage scenes, but also had anisotropy; b) In the phase of illumination calculation, this paper proposed an improved cone tracing filter based on the cascade texture structure, this filter improved the efficiency of illumination injection and reflected light calculation; c) The voxel updating strategy of the scene improved the runtime frame rate of the algorithm. Experimental results show that the proposed algorithm is much better than the original VCT algorithm in reducing the memory and improving the speed. The algorithm meets the real-time requirement of global illumination calculation in large-scale scene.

Foundation Support

国家自然科学基金资助项目(51679058)
中国高等专项研究基金资助项目(20132304110018)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2018.06.0573
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 2
Section: Technology of Graphic & Image
Pages: 578-583
Serial Number: 1001-3695(2020)02-058-0578-06

Publish History

[2020-02-05] Printed Article

Cite This Article

张菁, 王鹤, 张晓东. 基于级联体素纹理的VCT全局光照算法 [J]. 计算机应用研究, 2020, 37 (2): 578-583. (Zhang Jing, Wang He, Zhang Xiaodong. VCT global illumination algorithm based on cascade voxel texture [J]. Application Research of Computers, 2020, 37 (2): 578-583. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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