Thanks for all the great info, people.

While we're on the subject, just in case I've totally misunderstood:

Am I right in thinking that within a single batch, I can't draw one
set of vertices with one modelview matrix setting, and a different (or
even the same) set of vertices with another modelview setting?

Thanks for any confirmation (or otherwise) of my understanding.




On Nov 6, 2:14 pm, "Tristam MacDonald" <[EMAIL PROTECTED]> wrote:
> On Thu, Nov 6, 2008 at 12:08 AM, josch <[EMAIL PROTECTED]> wrote:
>
> > a guy called __doc__ advised me to replace my GL_QUADS by GL_TRIANGLES
> > in my tile engine a few days ago because of performance isues. I did
> > that and on my "modern" intel X3100 hardware i had EXACTLY the same
> > framerates with triangles as with quads.
>
> My X3100 seems to defy several basic rules of optimisation - I think
> integrated hardware just has very different performance characteristics. On
> my old ATI X1600, index triangle strips were definitely the fastest,
> followed very closely by indexed triangle lists. I found the difference too
> small to measure if you are pushing less than 1,000 triangles per draw call
> - so it may not be worth the bother to change.
>
>
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