Soft Shadow Map Method for Exploration Scene Simulation of Lunar Rover

Authors

Yang Cheng, 1. Key Lab of National Defense on Aerospace Flight Dynamics Technology, Beijing 100094, China;;2. Beijing Aerospace Control Center, Beijing 100094, China;
Jianliang Zhou, 2. Beijing Aerospace Control Center, Beijing 100094, China;
Geshi Tang, 1. Key Lab of National Defense on Aerospace Flight Dynamics Technology, Beijing 100094, China;;2. Beijing Aerospace Control Center, Beijing 100094, China;
Li Xie, 1. Key Lab of National Defense on Aerospace Flight Dynamics Technology, Beijing 100094, China;;2. Beijing Aerospace Control Center, Beijing 100094, China;
Guangming Chen, 1. Key Lab of National Defense on Aerospace Flight Dynamics Technology, Beijing 100094, China;;2. Beijing Aerospace Control Center, Beijing 100094, China;
Shushi Liu, 1. Key Lab of National Defense on Aerospace Flight Dynamics Technology, Beijing 100094, China;;2. Beijing Aerospace Control Center, Beijing 100094, China;

Abstract

Abstract: Scene simulation technology has gained a vast range of application in many different fields, such as aerospace measurement and controlling, by displaying the mission process and flight status in 3D real-time graphics interactively, which provided a comprehensive and intuitive controlling platform. The lunar exploration has been implemented with unmanned lunar rovers to detect the environments of the moon. Tele-operation was adopted to control the whole process by making and sending detecting plan and programming to the rover, in which the position of the sun was the key constraint condition. An effective real-time soft shadow map algorithm was presented to visualize the geometry relation between the rover and the sun directly. The shadow map from the light view was generated. The key pixels on the edge of shadow were classified into five types for further procession according to its neighbours. Then the bilinear smoothing was used to remove the aliasing on the edge of shadow. This improved method was applied to generate the shadow of the scenario including a lunar rover and the moon ground. The results and experiments indicate that the algorithm produces a good soft shadow with real-time effect for dynamic scenes.

Recommended Citation

Cheng, Yang; Zhou, Jianliang; Tang, Geshi; Xie, Li; Chen, Guangming; and Liu, Shushi (2020) "Soft Shadow Map Method for Exploration Scene Simulation of Lunar Rover," Journal of System Simulation: Vol. 27: Iss. 10, Article 54.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol27/iss10/54

First Page

2600

Revised Date

2015-08-04

DOI Link

https://doi.org/

Last Page

2606

CLC

TP391.3

Recommended Citation

Yang Cheng, Zhou Jianliang, Tang Geshi, Li Xie, Chen Guangming, Liu Shushi. Soft Shadow Map Method for Exploration Scene Simulation of Lunar Rover[J]. Journal of System Simulation, 2015, 27(10): 2600-2606.