Re: Changing number of Channels

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Lance R. Marrou (marrou++at++vsl.ist.ucf.edu)
Wed, 22 Feb 1995 09:32:14 -0500 (EST)

On Wed, 22 Feb 1995, deepa wrote:

...
> mode remains drawn there. How do I get this area cleared when I
> switch from the 1 channel to the three channel mode?

Make yet another channel that covers the whole screen. Have its draw channel
function be like so:

void mainDrawChannel (pfChannel *channel, void *data)
{
  short mainBackground[3] = {0.0f,0.40f,0.40f};

  c3s(mainBackground);
  clear();
}

This worked for me (before I realized that multiple channels were not efficient
on a single pipeline and single CPU machine). I haven't looked at this in
about a year or more (Performer 1.0, beta I think) so it might be missing
something.

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