DVE_Nowa中法向量纹理合成算法的研究与应用

Normal Map Generation Method in DVE_Nowa System

随着计算机图形学在模拟真实环境方面的广泛应用和快速发展,人们对其模拟的视觉真实性要求越来越高。法向量纹理(NormalMap)凭借其本身特征,在虚拟环境中可以营造出非常细腻且逼真的表面材质效果。目前法向量纹理的生成主要是利用ATi、NVIDIA的特殊工具,这种工具需要读入专有的模型类型,但DVE_Nowa系统中三维模型均采用OpenFlight文件格式存储。文章在分析现有生成工具的情况下,提出了可行的改进方法,提高了法向量纹理的生成质量,使生成工具支持OpenFlight格式。

With the wide application and quick development of computer graphics in simulating the real environment, the vision authenticity is highly required more and more.Normal map can build a very detailed and real effect of object material in virtual reality environment by itself characters.Now normal map is produced by special tool of ATi or NVIDIA which needs special model,but DVE_Nowa system reads OpenFlight format.This paper presents a feasible method based on above tool and makes it to read OpenFlight format.