[Dri-devel] r200 HW TCL oddities

[Michel <mi...@da...>]

Yes, I have an M9 now. :)

I'm seeing strange behaviour in bzflag with HW TCL: sometimes, the
colour and/or the lighting of some vertices seems to flicker. It seems
to happen when many bullets are in flight, so it might be related to the
number of light sources (lightlab shows a similar problem when enabling
three light sources). Are people seeing the same thing on x86, or is
this a PPC specific problem?

Also, lighting with HW TCL seems to be odd in general with both r100 and
r200 drivers. The best I can describe it is that vertices far away from
the light source seem to be lit much too bright, e.g. in bzflag, distant
walls will mostly have the color of bullets. I'm pretty sure that this
problem isn't architecture specific. Could it be a bzflag problem in
fact (the problem doesn't seem obvious elsewhere, but I may just not
have noticed it), somehow not providing enough information for HW and SW
TCL to produce the same results?


Any comments or hints how I can provide better information appreciated.


-- 
Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member   /  CS student, Free Software enthusiast