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https://bugs.freedesktop.org/show_bug.cgi?id=8060
------- Additional Comments From [EMAIL PROTECTED] 2006-08-30 16:59 -------
(In reply to comment #12)
> The failing assertion:
>
> arbvptest1: r200_vertprog.c:564: r200_translate_vertex_program: Assertion
> `mesa_vp->Base.OutputsWritten & (1 << 0)' failed.
>
> might be an invalid assertion. I just double-checked the GL_ARB_v_p spec and
> apparently it's not an error to use a vertex program that does not write to
> result.position. It IS an error for GL_NV_v_p. The spec says the results
> will
> be undefined if result.position is not written (but we shouldn't crash).
>
> The arbvptest1.c program tests several program strings, one of which does not
> write result.position. That's probably the one that's failing.
Yes. I'm going to add a fallback instead. I'll also fix up writing to the BFC
outputs just the same (this is actually strange, r200 can handle that with tnl,
but I _never_ got fglrx to write a vertex prog to the hardware which writes that
- the instruction to write it gets optimized away completely, and if you
actually enable two-side lighting for vertex progs it runs a lot slower so
presumably hits a fallback).
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