harry dalek wrote:Boy 15 lines looks ok Gary i was not expecting that perhaps the montor has a lot to do with it .. the Sequential colour looks good too ! have no idea how you have done in in your software its Magic

Yes it is surprisingly effective - of course I have smoothed the line structure out with bilinear interpolation, and whilst something similar IS possible with a mechanical monitor (via aperture shape and size) not many do it. In fact some frown on interpolating as it is a form of low-pass filtering. In addition a computer render of this format has the advantage of storage, and whilst even that COULD be done with a mechanical monitor, that would be much harder. It will be interesting to see how well the eye interpolates the RGB fields at 30 fields per second.
The other possible weakness of this format as a simulation of the real thing is that all three RGB fields are extracted from the one frame, whereas in a mechanical camera the three fields would be temporally displaced. This could have been done in software too, but most video is less than 30 frames per second and so would be duplicated to some extent anyway.
Never-the-less the whole idea of the software is to give an idea, a benchmark if you like, as to how good the format COULD be made to look on a mechanical monitor.
Perfecting an NBTV system is like trying to slam a revolving door...