Out of screen render

Hello all ,

I would like to what happened with triangles that end up out side of the screen , is opengl waste time in calculate this triangle and its better I will track this triangle or no reduce in performance ?


It is a big waste of time and a big problem. All vertices has to be transformed. If you need more speed is doing your own frustum culling probably a good idea.

When the 3d geometry is static (never change his position) pherheaps you can (with work) implement a BSP, octree or family.

You must consider carefully if that efford make great benefits.