Mat4
type t = float array
val look_at : ?up:Vec3.t -> eye:Vec3.t -> target:Vec3.t -> unit -> t
val perspective : fov_degrees:float -> aspect:float -> near:float -> far:float -> t
val orthographic : height:float -> aspect:float -> near:float -> far:float -> t
val mul : t -> t -> t
val transpose : t -> t