[Bug 28359] Regression running Second Life viewer on r600 (mipmap generation issue?)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=28359

--- Comment #3 from Aidan Thornton <makosoft at googlemail.com> 2010-06-20 04:50:20 PDT ---
Small additional detail: the mipmaps themselves appear to be generated fine as
far as I can tell, and everything works so long as no mipmap generation is
happening. However, when a mipmap is generated the next frame rendered by the
viewer reliably fails to render a lot of the in-world objects. In fact, whilst
textures are being loaded rapidly enough that at least one mipmap is generated
per frame, the same affected objects are consistently not rendered on every
frame. 

It appears that hardware mipmap generation and rendering are interacting badly
somehow. Given that Second Life relies heavily on streaming textures, this is
enough to make it unusable.

(Oh, and the patch pointed to by git bisect does indeed force hardware mipmap
generation rather than software as it claims).

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