[Csgl-users] Vertex Array Objects in CsGL

[Steve R. <Ste...@In...>]

Hello -

I've been poking around with CsGL a bit with an eye towards starting to use C#
and CsGL for a VR app.  My initial interest is in determining how efficient this
combination is relative to straight C++/OGL.  

So far things look very good.  The samples that I've created don't show any
appreciable performance reduction at all.  With the exception of the
glDrawElementArrayATI function.  Strangely, when using Vertex Array Objects in
CsGL, things work, but the triangle rate is 1/2 what I get for compiled vertex
arrays.  However, in C++ with VAO's, the triangle rate is triple what I get for
compiled vertex arrays.  (The triangle rate for compile vertex arrays is the
same in C#/CsGL and C++/OGL.)

Is there any known reason why VAO's wouldn't work as well with CsGL?  Or am I
just having trouble finding the inefficiency in my code?

Thanks,

- Steve

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