Hi all, I was wondering what are the criteria to decide upon using display lists or just openGL instruction. Particularly why the rendering of the particles in the osgParticle::Particle::render is done by openGL instructions and not display list or something more efficient.
If the reason is changing in the vertex attributes like the particle alpha, and position, then suppose all these attributes are static and I use display list, what performance gain (if any) it is reasonable to expect? I'm asking this because I use shaders in my application, and if there could be performance gain I might want to change the render to update shader attributes and render using these attributes. Do you think it worth the effort implementing such mechanism? Thanks, Guy.
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