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 =========================================================================== 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".
