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Academic Journal of Engineering and Technology Science, 2020, 3(8); doi: 10.25236/AJETS.2020.030810.

Research on Large-Scale Solar Ray Tracing Based on Ray Adaptation


Zhi YAO, Junpeng Ren

Corresponding Author:

Faculty of Science, Xi'an Aeronautical University, Xi’an, Shaanxi 710000, China


Accurate capture of solar rays can improve the solar energy utilization rate of solar devices, especially concentrated solar devices. The existing concentrated solar power generation system mainly adopts the methods of program control, sensor control and joint control of program and sensor. In order to improve the speed of ray tracing algorithm, a fast algorithm for traversing three-dimensional straight line uniform voxels is proposed. In this structure, the empty nodes of octree model are adaptively aggregated into bounding volumes, which reduces the intersection times of light and empty nodes as much as possible. Then, empty spatial grids are gathered adaptively with fewer empty boxes to speed up the calculation of ray tracing. The running speed of this algorithm is increased by about 56.5% compared with the existing fastest single-step algorithm, which greatly improves the efficiency of ray tracing, and can be realized only by using simple integer operation.


Ray tracing, Adaptive algorithm, Solar ray

Cite This Paper

Zhi YAO, Junpeng Ren. Research on Large-Scale Solar Ray Tracing Based on Ray Adaptation. Academic Journal of Engineering and Technology Science (2020) Vol. 3 Issue 8: 90-97. https://doi.org/10.25236/AJETS.2020.030810.


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