Real-time illumination and its applications in VR based on environment map;

Environmental subsidies are originally non-actionable subsidies in SCM Agreement, but the terms of non-actionable subsidies of 5-year period terminated in 1999, and the members did not agree on whether or not continue or terminate the application of it, so the legal effect of the relevant rules to environmental subsidies then have been temporary frozen.

The paper analyzes the environmental technology subsidy which is neglected in strategic environmental policy.

Various secondary development works to set up AutoCAD drawing environment in Qishuyan Locomotive and Rolling Stock Works are described.

This paper presents the methods to set up main parameters of drawing environment by programming,including graphic scales,text styles,dimension standard styles,layers,line types,colors,and so on,and introduces the relevant program examples which were established by using VBA of AutoCAD2000.

In this paper, its historical development is at first outlined, followed by a detailed review on the main matting technologies, including blue screen matting, natural image matting, as well as some extended technologies of matting on image, such as environment matting, shadow matting, and video matting.