[kde-edu]: [OpenGL] efficient spheres drawing ?

[Benoît Jacob]

Hi,

I'm working on the 3D stuff in Kalzium. I need to render spheres, and to 
optimize that for rendering speed on software-only systems.

So has anyone investigated this issue? Optimizing for software rendering is 
probably not the same thing as optimizing for hardware-accelerated systems.

Currently, I do a gluSphere inside a display list, but that's certainly not 
very efficient. I am considering using a Vertex Array / VBO instead. Do you 
think VBOs make sense on software-only systems?

I was wondering if other developers here (KStars devs maybe?) had already 
thought about that, and I don't want to reinvent the wheel.

Cheers,
Benoit