questions about drawing polygons

[Thant Tessman]

In article <9803 at watcgl.waterloo.edu>, jdchrist at watcgl.waterloo.edu (Dan Christensen) writes:
> [stuff omitted throughout]
> 
> In article <33129 at sgi.SGI.COM> thant at horus.SGI.COM (Thant Tessman) writes:
> >

> 
> >> 2) I am trying to draw a large mesh of shaded triangles.  The GT
> >>    Library has routines for drawing triangular meshes.  These
> >>    routines look like they would speed up drawing significantly because
> >>    only one third of the lighting calculations need to be done and one
> >              ^^^^^ 
> >One half.  In a single strip, each point is sent down once instead of twice
> >(not including the end points).  In a connected row of strips each point is 
> >sent down twice instead of four times.
> 
> I think it is one third, for a long strip.  To draw this using the

You're right.  I was thinking in comparison to quadrangles.

thant at sgi.com