基于虚幻4引擎的长白山虚拟现实场景地形制作

Making of North Changbai Mountain VR-Terrain Based on UE4 Engine

本文主要论述了虚拟现实体验平台中长白山北麓地形的数字化构建方法。首先介绍了虚拟现实体验平台和构建长白山地形的意义,然后主要从地形数据处理、地形数据导入和地形关卡划分几个方面阐述了现实地形导入虚幻4引擎的制作方法。前期对长白山景区内部地形做实地勘察,使用ARCGIS软件制作DEM图,之后将DEM图提取为高度图作为地形转换的基础;为了提升地形制作效率以及提升用户体验,把地形划分为若干小块,使用虚幻4引擎中的关卡流送功能分别加载,完成整个地形。最后针对地形精度和显示效果等问题进行了讨论。

In this article,we mainly discusses the method of terrain construction in the northern foot of Changbai Moun-tain.First of all,article introduces the significance of the virtual reality experience platform and the construction of Changbai mountain terrain.Back into the main discuss,this paper discusses the processing of terrain data.After that,we analyses the import of terrain data and how to split over large area in UE4.In the early stage,we respectively conduct field survey on the internal topography of Changbai Mountain scenic spot,use ArcGIS software to make DEM map,and then extract DEM map as height map as the basis of terrain conversion.In order to speed up the progress of terrain production and improve the quality of user experience,we divide the terrain into several small pieces,and use the level flow function in unreal 4 to load separately to complete the whole terrain.Finally discusses the terrain ac-curacy and display effect.