https://bugs.freedesktop.org/show_bug.cgi?id=31013

--- Comment #16 from Roland Scheidegger <srol...@vmware.com> 2010-10-27 
06:43:24 PDT ---
> Ok, so it looks like I was wrong about this.  I input a shader with 4
> indirections to the AMD Shader Analyzer and it crashed, so I'm pretty sure 
> r300
> is limited to 3 indirections.  I'm guessing that the reason this works on
> Windows with r300 hardware is because that driver has some sort of software
> fall-back, which r300g doesn't have.

I dunno maybe the driver does some tricks like trying to move out the
calculation leading to the first texture lookup back to the vertex shader? No
idea if that would actually work...

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