[A83] Re: Grey scale(and enterlacing, is that the right word for it?)
[Prev][Next][Index][Thread]
[A83] Re: Grey scale(and enterlacing, is that the right word for it?)
On Sun, 30 Dec 2001 Mike3465@aol.com wrote:
>
> Ok, i've though a bit on the comments made on grey scale before and
> how to do it, including drawing a pixel from 1 buffer, then a pixel
> from the other buffer and stuff, and i have this old(er) code from a
> previous talk about grey scale. This is how i did it: 2 buffers,
> buffer a and buffer b i go through and i and buffer a with %10101010
> and then and buffer b with %01010101 and or them together. I then send
> it out to the port. Is this anything like we were talking about? I've
> tried running it on the emulator and it has faint lines, and i'm
> looking into how i would flip the buffers(w/o copying of course) every
> line. any ideas?
Have you tried it on a real calculator? Because VTI displays grey when it
detects that a pixel is being turned on and off quite fast. Using the
technique I proposed, that sometimes gives wrong results. On a real
calulator however, it may display better.
Follow-Ups:
References: