A focus switching method and system for 3D scenes

Abstract

The invention discloses a focus switching method and system for a 3D scene. The method includes the steps that a center of each top vertex in an object module of the 3D scene is calculated to serve as a node; vectors from current focuses to other nodes in an enclosing box are calculated to form a vector set of the current focuses; a 3D scene model view coordinate system based on the observation direction of a user is acquired, and the 3D scene model view coordinate system is horizontally moved to the current focuses; an X-axis projection, a Y-axis projection and a Z-axis projection of each vector in the vector set of the current focuses in the 3D scene model view coordinate system are calculated, and vectors corresponding to the minimum projections in positive intervals and negative intervals of an X axis, a Y axis and a Z axis are respectively acquired; when a focus switching instruction of the user is received, direction moving information is acquired according to the focus switching instruction of the user, the vectors corresponding to the minimum projections are acquired from the positive intervals or the negative intervals of the corresponding axes according to the direction moving information, and focuses are skipped to goal nodes the vectors point to from the current focuses.

Description

technical field [0001] The present invention relates to the field of 3D technology, in particular to a focus switching method and system for 3D scenes. Background technique [0002] The focus of the 3D scene refers to applying a specific color and light effect transformation to a certain object module in the 3D scene, and through this special effect to achieve the effect of prompting the user. The object module therein may be a vertex, or a plane or an object formed by connecting multiple vertices. In the present invention, this vertex may be called a node of a 3D scene. [0003] Traditional 3D technology is mainly used in dynamic simulation of games and some experimental scenes, and the use of dynamic switching of focus points is seldom used, and focus switching is limited to switching on a certain 3D plane. With the advancement of technology, 3D applications are gradually emerging in TVs and mobile phones, so various focus switching technologies emerge as the times requir...

AI Technical Summary

Problems solved by technology

[0007] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a focus switching method and system for 3D scenes, aiming to solve the problem that the existing focus switching methods are not flexible enough

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