Sometime ago, I took, maybe a wrong turn, and have ended up using selection to determine various parameters associated with a 3D cursor ... hotspot, collision and vertical height ...
It works well ... but I'd like it to go a little faster as there multiple renders to get the information. During the selection rendering, I use a minimized object geometry for the entire scene and pre-cull some objects that won't be relevant ... but is there anything else that I can do to make the process maybe a bit faster ? ... I presume that GL_SELECT really doesn't care about lights, textures, etc ? and that there's nothing that I should specifically disable ?