山东国土资源Issue(7)：59-64,71,7.
基于GPU的全球地形数据加速绘制技术研究
Research on Accelerated Rendering Technique of Global Terrain Based on GPU
李浩 1相恒茂 1孙久虎1
作者信息
- 1. 山东省国土测绘院，山东 济南 250102
- 折叠
摘要
Abstract
Through studying the method for making large scale terrain datas in real-time based on graphic processing units,pointing to the characteristics of the batch of rendering of GPU,an improvement method of geometry instancing has been put forward.It can be used to render global grid quickly.The terrain datas are recoded and stored in height maps.Combing with the vertex texture fetch capability in Shader Model 3. 0,and decoded in GPU,the primitive DEM datas can be gained.It will avoid carrying out vertex buffer on CPU.This algorithm can not only reduce the CPU load,but also reach a higher frame rate.关键词
图形处理器/实时绘制/四叉树/瓦片块/高度图Key words
Graphic processing unit/real-time mapping/quad tree/tiled block/height maps分类
信息技术与安全科学引用本文复制引用
李浩,相恒茂,孙久虎..基于GPU的全球地形数据加速绘制技术研究[J].山东国土资源,2015,(7):59-64,71,7.
