Re: [Dri-devel] Premultiplication of the texture homogeneous coordinates in mach64

2002-03-06 Thread Ian Romanick
On Wed, Mar 06, 2002 at 12:38:38PM +, José Fonseca wrote: > I finally figured out what I was doing wrong when attempting to do > premultiply the tex coords. Unfortunately I was making a lot of mistakes > (such as remultiplying in reused vertices on primitive drawing functions, > igoring the

Re: [Dri-devel] Premultiplication of the texture homogeneous coordinates in mach64

2002-03-06 Thread José Fonseca
On 2002.03.06 13:17 Keith Whitwell wrote: > José Fonseca wrote: > > > > ... > > > > In the end I come up to the conclusion that this is neither one is the > way > > to do it: > > > > - Premultipling in the _emit function is not enough because clipping is > > made after. Even if we premultiply the

Re: [Dri-devel] Premultiplication of the texture homogeneous coordinates in mach64

2002-03-06 Thread Keith Whitwell
José Fonseca wrote: > > I finally figured out what I was doing wrong when attempting to do > premultiply the tex coords. Unfortunately I was making a lot of mistakes > (such as remultiplying in reused vertices on primitive drawing functions, > igoring the coordinate pointer increment in _vbtmp.h

[Dri-devel] Premultiplication of the texture homogeneous coordinates in mach64

2002-03-06 Thread José Fonseca
I finally figured out what I was doing wrong when attempting to do premultiply the tex coords. Unfortunately I was making a lot of mistakes (such as remultiplying in reused vertices on primitive drawing functions, igoring the coordinate pointer increment in _vbtmp.h so effectively reading the