orthographic
inline fun <T : Number, Comparable<T>> orthographic(left: T, right: T, bottom: T, top: T, near: T, far: T): Mat4<T>
fun <T : Number, Comparable<T>> orthographic(left: T, right: T, bottom: T, top: T, near: T, far: T, type: KClass<T>): Mat4<T>
Creates a projection matrix for an orthographic (parallel) projection defined by a given set of clipping planes: left, right, bottom, top, near and far.