Re: [Plib-devel] Q1: Shared vertex data

[Steve B. <sjb...@ai...>]

"Vallevand, Mark K" wrote:

> > I don't have the SSG source code to quickly look at, but
> > I thought that ssgVtxTable used vertex arrays.  It seems
> > like a natural fit.

That's not an accident.

One of the reasons to go to the present ssgVtxTable from the
old ssgVTable was to make it easy to build a compatible
class that used CVA's (or just VA's) - so that is indeed the
next logical step.

> ssgVtxTable stores the vertex data in an array but passes it
> to OpenGL via glVertex
> 
>   glBegin ( gltype ) ;
>   for ( i = 0 ; i < num_vertices ; i++ )
>     glVertex3fv ( vx [ i ] ) ;
>   glEnd () ;
> 
> This is nice and straight-forward but not exactly optimal for large models.
> A seperate class, using vertex arrays, would be a useful addition to SSG.

Yep. 

> This might be worth looking at.  Hmm, Hmm.  You could use the
> existing SSG collection classes.  A class named ssgVtxArray, or
> some such thing.

Yes - that is exactly the plan...but in my present state of busy-ness,
I'm not going to be getting to do that very soon - so all contributions
are gratefully accepted.

-- 
Steve Baker                  http://web2.airmail.net/sjbaker1
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