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Real-time drawing method and system for large-batch three-dimensional ground-contacting wakes

A large-scale, trailing technology, applied in 3D image processing, instruments, computing, etc., can solve problems such as low frame rate, slow refresh, freeze, etc., to achieve smooth simulation process, reduce impact, and improve efficiency.

Active Publication Date: 2020-11-13
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

[0004] Purpose of the invention: In view of the problems such as stuttering, low frame rate, and slow refresh that occur when rendering a large number of situational object trails on the ground in the current 3D battlefield environment simulation system, the present invention provides a large-scale 3D ground-mounted trail The real-time drawing method includes the following steps:

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  • Real-time drawing method and system for large-batch three-dimensional ground-contacting wakes
  • Real-time drawing method and system for large-batch three-dimensional ground-contacting wakes
  • Real-time drawing method and system for large-batch three-dimensional ground-contacting wakes

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Embodiment Construction

[0052] The present invention proposes a method and system for real-time drawing of large-scale three-dimensional ground-sticking wakes, a method for real-time drawing of large-scale ground-sticking wake lines, the method adopts cuda parallel computing technology, and the interpolation calculation process of ground-sticking lines that consumes more CPU resources is proposed. Hand it over to the GPU, give full play to the parallel computing advantages of the GPU, and rationally use the computing resources of the CPU and GPU to achieve the purpose of improving computing speed and optimizing rendering efficiency.

[0053] Such as figure 1 As shown, the method first judges the current terrain grid to determine whether it is necessary to update the trails on the ground, screens out the objects that need to be updated on the trails on the ground, and submits the request; after the request processing thread receives the update request , filter out the trail segments that need to be up...

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Abstract

The invention provides a real-time drawing method and a real-time drawing system for large-batch three-dimensional ground-contacting wakes. The method is applied to a battlefield environment simulation process. A large number of wake points generated by various situation targets in real time are screened and compared to find out wakes needing to be subjected to ground line updating, a multi-threadtechnology is used for organizing wake data and topographic grid data, a cuda parallel computing technology is used for carrying out topographic grid interpolation computation on wake line segments,and ground wake lines are obtained. According to the method, real-time drawing of large-batch three-dimensional ground-contacting wakes in the battlefield environment analog simulation process can beachieved; compared with the mode that CPU interpolation is directly used, the method disclosed in the invention is advantageous in that interpolation calculation can be reduced on the basis that the ground-contacting effect is guaranteed, the calculation and drawing efficiency is remarkably improved, and the battlefield environment analog simulation process is smoother.

Description

technical field [0001] The invention belongs to the field of computer graphics, and in particular relates to a method and system for real-time rendering of a large number of three-dimensional trails attached to the ground. Background technique [0002] In the 3D battlefield environment simulation system, in order to show the movement state of various situation targets, it is necessary to use the trail as an auxiliary rendering element to directly reflect the movement trajectory of the situation target and predict the target action intention. important role in decision-making. The motion of the 3D situation target is represented by batches of wake point data received by the simulation system. In the 3D scene rendering, various modifications are performed on these wake points, and they are displayed in various forms of wake lines. For the situational target on the ground, its movement trajectory must be generated along the terrain fluctuations, and only through the fitting of...

Claims

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Application Information

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IPC IPC(8): G06T15/00G06T19/20
CPCG06T15/005G06T19/20
Inventor 占伟伟袁思佳蒉露超王辉李佳祺郑瑞杰
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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