一款基于OpenGL的佩珀尔幻象实现方案

An Experimental Scheme That Implements Pepper’s Ghost Using OpenGL

佩珀尔幻象是虚拟现实的一种实现手段。而OpenGL是一种用于渲染二维、三维图形的应用程序接口。介绍佩珀尔幻象的实现原理,并给出一个利用OpenGL强大的三维渲染能力来实现佩珀尔幻象的方案。不仅从硬件角度介绍该方案的光路设计,还将从软件角度详细阐述如何正确运用OpenGL对虚拟影像进行建模。最后还会展示一个实例的效果:地球的动态虚拟影像。

Pepper’s Ghost is a means of implementing Virtual Reality,and OpenGL defines a set of software application interfaces that render two-dimensional and three-dimensional Graphics.The principal of Pepper’s Ghost is described.Furthermore,a scheme that implements Pepper’s Ghost using OpenGL’s powerful 3D rendering capability is also presented.The scheme not only describes the hardware design,but also explains in detail how to correctly utilize OpenGL to model the virtual object.Finally,a real instance is illustrated:a dynamic image of a virtual earth globe.