Re: [r300] ARB vp attribs broken?

[Brian P. <bri...@tu...>]

Rune Petersen wrote:
> Tilman Sauerbeck wrote:
> 
>>Rune Petersen [2006-06-25 16:31]:
>>
>>>I've been looking at vertex shaders this weekend.
>>>
>>>It would appear that attribs are broken. The most straight forward way 
>>>to test this it to compare progs/tests/arbvptest3 to progs/tests/vptest3
>>>
>>>On my system I get different colors when I resize the window.
>>>
>>>Can someone confirm this? (it would explain why Doom 3 is broken)
>>
>>Yes, I have reported this some weeks ago:
>>http://marc.theaimsgroup.com/?l=dri-devel&m=114855685402158&w=2
>>
> 
> Don't know how I fixed that...
> 
> It would appear to be caused bu the reshuffling of the attribs.
> 
> Any idea where the attribs are passed to the driver?
> and how to read the data in the attribs...

I can't comment on the r300 driver, but the change in vertex aliasing 
in core Mesa is pretty simple.  It's really just a change of which 
index into the VB->Attribs[] array corresponds to 
glVertexAttribARB(index, ...).

-Brian