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https://freedesktop.org/bugzilla/show_bug.cgi?id=1776
------- Additional Comments From [EMAIL PROTECTED] 2004-11-14 17:22 -------
Created an attachment (id=1309)
--> (https://freedesktop.org/bugzilla/attachment.cgi?id=1309&action=view)
stencilwrap output with hacked driver
I've confirmed that the windows drivers exhibit the same bug. Since I didn't
have an explicit stencil wrap test binary for windows, I used q3a with stencil
shadows enabled (q3 uses gl_keep for zfail and stencilfail, and switches
between gl_decr and gl_incr for zpass). This will cause rendering error due to
the wrapping of gl_decr (shadow around shock rifle fire, and sometimes the
whole image gets too dark).
So it's not fixable.
I've attached the output of stencilwrap when the driver was hacked to use the
INC value for gl_incr_wrap, and DEC for gl_decr_wrap, which seems like the
"closest" solution, even though gl_incr_wrap (and gl_decr) stay broken. I would
say that especially gl_decr is very problematic due to the unwanted wrapping
but we'd probably just have to live with it :(.
Oh, and btw, I think ATI was lucky that quake 3 shipped without stencil shadows
as default ;)
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