what libararies are their available for importing .3ds models, that allow you to gain access the exact triangle geometry, i.e. vertex position, normals, tex coordinates and everything. im working on a game, and ive never used any modelling programs before, ive only ever used heightmap terrain, and procedurally generated models, and i need to be able to access the geometry for the physics in the game. at the same time, the engine is optimized, so that there is a list of geometry that is collidable - in otherwords will be interacted with - and that which wont, to increase speed of player-geometry collision detection, in modelling programs like 3dsmax, is there anything that can be done, so that you can sort of, add an identifier to certain models and triangles that will be passed into the .3ds file, so that i can retrieve it automaticly?