The PerspectiveCamera doc says
0 is not a valid value for a PerspectiveCamera’s near plane.
Why is this?
The PerspectiveCamera doc says
0 is not a valid value for a PerspectiveCamera’s near plane.
Why is this?
There’s some discussion here.
Essentially, it would cause this equation, which is used in the setup of the projection matrix, to return 0:
-(2 * zFar * zNear) / (zFar - zNear)