Method and device for node selection of object in three-dimensional virtual reality scene

Abstract

The invention discloses a method for node selection of an object in a three-dimensional virtual reality scene. The method comprises the following steps of: receiving a positioning signal of the target object in the three-dimensional virtual reality scene; projecting the target object to a set position of a display window according to the positioning signal; if the target object is shown in the set position, getting two-dimensional coordinates corresponding to a clicking position in the display window after the behavior of clicking the target object is perceived; determining a monomer corresponding the clicking position according to the two-dimensional coordinates; getting a leaf node corresponding to the monomer in a tree-shaped management structure and getting a father node of the leaf node; if the attribute of the father node is of unlocking, selecting the monomer; and if the attribute of the father node is of locking, tracing the nearest node with the unlocking attribute of the father node from the father node along the root node direction of the tree-shaped management structure and selecting an assembly corresponding to the node. The invention further discloses a device for node selection of the object in the three-dimensional virtual reality scene.

Description

technical field [0001] The invention relates to the technical field of three-dimensional virtual reality, in particular to a method and a device for selecting objects in a three-dimensional virtual reality scene. Background technique [0002] The rapid development of computer image technology has promoted the progress of 3D virtual reality technology. The basis for establishing a 3D scene in 3D virtual reality includes three aspects: first, the picture has a perspective effect; the perspective effect is the basis for viewing the 3D world and the basic requirement for the picture to produce a three-dimensional effect. Second, the picture has correct changes in light and shade; in the real world, according to the brightness, color, position and quantity of the light source, the object will have corresponding bright parts, dark parts, projection and gloss, etc. In addition, the nearby objects have different colors. Aspects such as saturation, brightness, and contrast are relat...

AI Technical Summary

Problems solved by technology

[0005] In the above method of selecting objects by using rays, the point where the rays intersect with the object is a point, so the category of the selected object cannot be confirmed. In the real scene, it is difficult to realize the category definition of selecting the whole object, part of the object or the whole scene by pointing at the object; in addition, because the occluded, contained or surrounded objects cannot be mapped in the three-dimensional virtual scene window, it cannot be realized. Point centering and selection of containing, enclosed, or occluded objects

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