http://bugs.freedesktop.org/show_bug.cgi?id=20626
raoxianhong <raoxianh...@163.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #6 from raoxianhong <raoxianh...@163.net> 2009-03-16 04:48:52 PST
---
(In reply to comment #5)
> (In reply to comment #3)
> > Thank for replay,
> > I use the texgen function use with GL_OBJECT_LINEAR option and expexted tex
> > coord as px * x + py * y + pz * z + pw * w, it looks like r200 set object
> > coord
> > to normalized (x/w, y/w, z/w, 1.0), so the result is px * x / w + py * y /
> > w +
> > pz * z / w + pw, is it a hw limitation or parameter setting bug?
> The hw should be able to handle it, so should the driver. You should try a
> newer mesa version.
The problem is solved by update mesa version. But I must DISABLE
GL_TEXTURE_GEN_R and GL_TEXTURE_GEN_Q to do it. If GL_TEXTURE_GEN_R or
GL_TEXTURE_GEN_Q is enabled, R200 looks line to object coord to normalized
(x/w, y/w, z/w, 1.0), it is same when I use with ATI's driver under windows XP,
so it must be a limitation of R200. (and I get the same result on RADEON X300,
X1300)
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