I’m updating the Matrix4 docs and there’s a method called Matrix4.makePerspective( fov, aspect, near, far )
Internally this calculates the values of left, right, top and bottom and calls
Matrix4.makeFrustum( left, right, bottom, top, near, far )
and it looks like it is intended for use in PerspectiveCamera.updateProjectionMatrix()
However the PerspectiveCamera calculates its own versions of left, right, top and bottom in a slightly more complex way, taking into account zoom, view (if set) and filmOffset, and then calls Matrix4.makeFrustum directly.
So it seems that Matrix4.makePerspective() is superfluous – is there a use case that I am missing?