Suppose I have a viewport looking down the -Z axis. I have the distance of the viewport from the Z axis, the Z value of a vertex, and the ZNear and ZFar clipping plane values.
Now how do I figure out what the depth buffer value is going to be under that vertex?
I’m currently doing:
1.0-(ObjectZ+CameraZ)/(ZFar-ZNear)
but that doesn’t work quite right.