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kCGLPFABackingStore questions

Hi,

I am trying to use kCGLPFABackingStore in both a window and fullscreen to achieve some motion blurry type effects.

I have found that in fullscreen, you need a glFlush (or glFinish) for every CFGFlushDrawable, or all rendering seems to stall until you've drawn a bunch of stuff.

Hard to explain, but my test code is just setting a random color, drawing a random line, then CGLFlushDrawabling - and the lines are only showing up in chunks of 50 or so - unless I added a glFlush to the loop.

Is this a sign I'm doing something wrong? If not, should I be using glFlush, glFinish or something else?

Also in fullscreen, kCGLPFABackingStore appears to conflict (ie is ignored) if kCGLPFADoubleBuffer is present - is this correct? Is there something else I have to do?

In windowed mode, the presence or absence of kCGLPFABackingStore seems to have no effect. Should I have it in there anyway?

Bye!
Mark

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