Logical reasoning-based rapid collision detection method in virtual operation simulation

Abstract

The invention relates to a logical reasoning-based rapid collision detection method in virtual operation simulation, which comprises the following steps: tracking all joint motions of one hand of an operator by utilizing a data glove, and implementing motion control on a virtual hand; according to the positional relationship between the virtual hand and a virtual object when the virtual hand grabs the virtual object, computing the included angle between the motion vector of the tail end of each finger and the normal vector of the position at which the tail end of the finger is contacted with the surface of the object last time; judging the motion directions of all fingers according to the included angles; performing logic reasoning according to the motion directions of the fingers; reasoning whether the fingers are contacted with the object or not on the basis whether fingers are contacted with the object or not in a previous frame; if the fingers are contacted with the object, not performing basal collision detection computation in the frame; and if the fingers are not contacted with the object, performing the basal collision detection computation in the frame, thereby, the invention provides the logical reasoning-based rapid collision detection method in the virtual operation simulation, which is capable of enabling the operation simulation that the virtual hand grabs the virtual object to be accurate and rapid.

Description

technical field [0001] The invention relates to the technical field of computer simulation, in particular to how to quickly adopt a logical reasoning method based on the static collision detection method and the contact situation of the previous frame for the characteristics of the hand grasping process in the virtual operation simulation process in a virtual environment. Determine the collision detection method between each part of the virtual hand and the grasped object. Background technique [0002] In the virtual operation simulation, it is necessary to judge whether the virtual hand is grasping the object according to the collision detection results between the virtual hand and the virtual object. During the grasping interaction process, real-time collision detection calculation between five fingers and the virtual object needs to be performed simultaneously. , and it is a process of continuous contact, which puts forward higher requirements on the running speed of the ...

AI Technical Summary

Problems solved by technology

For two objects that are in continuous contact, the program needs to perform collision detection calculations according to this step from beginning to end in each frame cycle, and the running speed is slow

And when an object enters another object, because the computer models of both are surface models, it is judged that the two do not touch through this method, which does not conform to the contact situation of two objects in the real world.

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