基于Flash三维引擎的虚拟布光系统的设计与开发

Design and development of virtual lighting arrangement system based on Flash three-dimensional engine

虚拟布光是指使用者借助于摄影布光模拟软件可以像在真实的摄影棚内一样完成各种灯光强度和方向的调整,所取得的效果等价于真实影棚内所取得的效果。介绍了虚拟布光系统的设计思想、开发工具和具体实现方法。研究了视图的创建、三维拍摄主体的创建、三点布光的光源创建、光源有形化、光源的选择、光源强度调节和光源位置调节等实用技术。应用Flash AS3三维引擎开发虚拟布光系统可为开展网上虚拟实验教学提供借鉴。

Virtual lighting arrangement （VLA） means that the user can adopt simulation sottware of photographic lighting arrangement to adjust the direction and strength of lights in computer with equal effects in real photo studio. The aim and ideas of VLA system design, and its developing tools are described. The implementation methods are presented, together with how to create the viewport, 3D shooting objects and three-point lighting, how to form and choose light source, how to adjust lighting strength and position. It will be a good reference for virtual experiment instructions in online courses.