Re: Windows GL problems

[Jeremiah M. <mos...@ya...>]

--- Nick Sayer <ns...@qu...> wrote:
> I've tried this some more. The machine is running Windows 98 (I
> forgot
> to mention that), and I have tried every possible variety of driver
> rev for the G200. They all behave the same way -- they don't draw
> anything
> on the bottom part of the screen, but the top part (viewscreen) is
> flawless.
> 
> If I force Generic GDI (by choosing 24 bit color modes), everything
> works,
> albiet with terrible performance (of course).
> 
> While one could simply dismiss this as a driver bug, I find it
> amazing that
> the same driver bug is hitting two different cards. And I would
> still like to
> know more so that I can submit a proper bug report to Matrox.
> 
> I know this is a very naive question, but what is different about
> how the
> top part of the display is created compared to the bottom? One
> difference is
> clearly the top part has to be re-rendered frequently. But then, so
> must the
> radar, and that's not showing up. But the framing in the bottom
> part -- is
> that only drawn once? Is it some sort of overlay? If it is, is it
> possible
> to make a test version of bzflag that does things in a different
> order or
> something?

Yes, the framing seems to be drawn only one.  Aliased lines on my
computer overlap (apparently, they aren't clipped when rendering via
software), and eventually mess up the control panel completely on my
computer, so I have to keep anti-aliasing on.

The biggest difference between the top and bottom is that the top is
rendered in 3D, while the bottom uses 2D routines.  I'm not sure why
the radar doesn't work.

> 
> I don't have a development environment on Windows, unfortunately,
> but I would
> like to hunt this down, if I can get any help doing so.

I do, but I don't have a card, so I'm not much closer to solving the
problem than you are.  Can anybody else help?

Jeremiah (CobraA1)


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