https://bugs.freedesktop.org/show_bug.cgi?id=31013
--- Comment #12 from Alex Deucher agd5f@yahoo.com 2010-10-23 09:29:24 PDT --- (In reply to comment #11)
(In reply to comment #9)
r3xx/r4xx actually supports 4 indirections, so if the current code is limiting it to 3, it should be upped to 4. See US_CONFIG.NLEVEL
Isn't the level 3 indirection limited to reading from input registers?
I though you could have up to 4 indirections in addition to the input, but it's been a while since I looked at 3xx. If the shader works on the same hw using the proprietary driver, it would seem to indicate that was the case (barring some other bug).