[Bug 20626] r200 texgen with glVertex4f(x, y, z, w) error

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=20626





--- Comment #10 from Roland Scheidegger <sr...@tu...>  2009-03-17 06:38:07 PST ---
(In reply to comment #8)
> R200 is correct, and you. The real world is 3D world, we can only use three 
> indenpendent parameters talk with it.
> 
> But can I set q coordinate to 1.0f when I disable texgen Q?
As said the chip might have problem with disabling only some texgen coords,
though in this case if you don't need a texture matrix it might be fine.
You can play with R200_TEXGEN_FORCE_W_TO_ONE but this setting doesn't seem
useful to generate OpenGL-compliant results.


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