Roam mode realizing method in three-dimensional scene simulation system

Abstract

The invention relates to a roam mode realizing method in a three-dimensional scene simulation system. The roam mode realizing method comprises the following steps of: 1, triggering the interruption of a scene paint cycle, defining and loading a new camera controller and an animation path; 2, dynamically obtaining positions of visual points interested by a user in real time, calculating to obtain corresponding key nodes and inserting the key nodes in key point lists of the defined animation path; 3, interpolating to generate all nodes of the path and inserting the nodes into the key point list; and 4, executing the animation path comprising all key point lists. A camera in a scene is used for capturing the nodes interested by the user along the real-time calculated path, and thus the roam mode realizing method has at least one of the advantages that the switching of scene observation visual points is completed by using a more vivid mode, the positional relation of two points before and after switching can be more clearly explained, and the scene integral position distribution is taken into account while the specific interested positions are concerned.

Description

technical field [0001] The invention relates to the design of a roaming mode in a three-dimensional visual simulation system, in particular to a method for realizing the roaming mode in a three-dimensional visual simulation system, which is especially suitable for browsing and roaming of large-scale scenes such as terrain and landform. Background technique [0002] The visual simulation system is a comprehensive utilization of virtual reality, computer simulation, optical imaging and other technologies, through the computer 3D visual simulation of the target object, to provide users with a practical, convenient, shocking and realistic, information-rich visual display and management platform. Immersive spatial 3D visual experience. This technology is widely used in the visual display and management of engineering information such as large-scale projects, urban planning, real estate projects, water, oil, gas and electricity pipeline networks. Roaming mode refers to the specif...

AI Technical Summary

Problems solved by technology

[0007] Through the comparison in the above table, we can find that the first type of mode is easy to operate, and the routine operation of scene roaming can be completed only by using the mouse. In the case of inspection, regardless of the size of the scene, the content of the entire scene can be browsed conveniently and quickly; however, the implementation method of this mode is complicated, it is impossible to quickly switch between scenes and the subjective immersion to the user is poor

The second type of mode can bring users a good sense of immersion. Users can manipulate the first-person point of view through keyboard and mouse operations, which is often used in role-playing 3D e-sports games; Can browse the situation near the viewpoint position, but cannot conveniently view the overall scene distribution

The third type of mode is simple to implement, easy to operate and accurate in positioning; however, its main disadvantage is that it cannot express the positional relationship between the two points before and after switching and lacks vividness

Summarizing the actual development experience, we can know that a prominent problem in the design process of roaming mode is that it is difficult to take into account the macro and micro display in complex scenes at the same time.

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