Road grid creation method and device based on unity engine terrain system

Abstract

The invention discloses a method and apparatus for creating road mesh based on Unity engine terrain system. The method comprises the following steps: acquiring sampling points from scene to create road curves; obtaining vertices of piecewise grids, and creating vertex preparatory arrays; creating a bounding box of vertices of a segmented mesh and a cutting face; creating a secondary vertex preparation array; creating a triangular index array of secondary vertex provisioning arrays; a sub-level vertex preparation array being obtained by cutting a secondary vertex preparation array with a cutting surface, and a sub-level triangle index array being obtained by reorganizing that triangle index array; obtaining a UV array of child vertex preparatory arrays based on a cutting surface; the road mesh being created by using child vertex preparation array child triangle index array and UV array. The invention discloses a road grid creation method and device based on a Unity engine terrain system, which can create a road model completely conforming to the Unity engine terrain system.

Description

technical field [0001] The invention relates to the technical field of image modeling, in particular to a method and device for creating a road grid based on a Unity engine terrain system. Background technique [0002] Unity is a multi-platform comprehensive 3D graphics engine developed by Unity Technologies that allows developers to create interactive content such as 3D video games, architectural visualization, and real-time 3D animation. Other current game engines, such as CryENGINE3 engine, Unreal 4 engine, etc., provide editing tools for creating roads based on the terrain system of the Unity engine, but the Unity engine does not provide developers with editing tools for creating roads based on the terrain system of the Unity engine . [0003] The editing tool for creating roads is a tool that can create simulated real-world road models in a virtual three-dimensional space. The functions of the editing tools for creating roads generally include customizing the start po...

AI Technical Summary

Problems solved by technology

Among them, the deferred rendering method draws the terrain by sampling road textures in the deferred rendering stage, but this method does not support implementation on mobile devices; the projector method cannot render custom shapes; the method of creating grids , then use the method of generating a grid based on path sampling points, set sampling points on the terrain system, sample the height of the terrain, and generate a road model, but this method also has problems that cannot completely fit the terrain, and the fineness of the road grid is not enough Defects

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