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

[Dave M. <Dav...@dy...>]

> When I looked at vertex arrays, it was not clear to me how
> they could even be used to share vertex data, which is my
> aim.
>
http://www.sgi.com/software/opengl/examples/redbook/source/varray.c

> 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.
>
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.

--Dave