Artur: Thank you for your comment. What I am doing is (in each loop): firstly render a image which is needed. Immediately after this image is successfully rendered, another image (say black image or 'drawing nothing') is rendered to exactly the same position as the first one, so that the long existance (persistence) of the first image is covered by 'nothing'. I hope through this way the ghost image can be minimized. However, in the program I attached, the 'drawing nothing' image completely covered the first image before I can view the first one. I am wondering whether there is a way to let the first image visible and then the 'drawing nothing' image is rendered?
Thank you! G.B. Liu --- Artur Biesiadowski <[EMAIL PROTECTED]> 寫道：> Guang Bin Liu wrote: > > > My purpose is to > > use the black gratings to cover the green gratings > so > > that the image persistence is reduced. > > I don't know if I have understoof you correctly, but > I doubt if it will > work. You know, there is no such thing as 'drawing > black something'. It > just means not drawing anything. There is no way to > use electrons in > monitors gun to extenguish luminance. > > But it might be possible to achieve that with > white/bright background. I > don't know if it makes sense for your application, > but at least should > be possible from technical point of view. > > > > > Artur > > _________________________________________________________ Do You Yahoo!? 登記免費的 @yahoo.com 中文電子郵件 @ http://chinese.mail.yahoo.com Get your free @yahoo.com address at http://chinese.mail.yahoo.com =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
