Anyone? Please?
> I'm trying to figure out the size of an object in screenspace. A simple > sphere at the origin using a perspective lens for the camera. I thought > the following should give me the radius of the sphere in screen space > (i.e. pixels): > > camera.lens.getPerspective( > camera.position.distance( new Number3D())) * sphere.radius > > The value is close and clearly correlates with the actual object size > but it's off by about 5%. What am I missing?
