[Sidefx-houdini-list] VEX Surface SHOP Type : Pz
svdbg at free.fr
Wed Nov 14 17:41:48 EST 2007
Mark Alexander a écrit :
>> What is exactly Pz ?
> Pz is the distance from the camera plane to the plane that the shaded
> point is on (parallel to the camera plane; the camera plane is
> perpendicular to the camera viewing direction and passes through the
> camera position). It is *not* the 3D distance from the camera to the
> point shaded.
OK. Too be sure I understood, it is so the distance between the point
and its projection (parallel to the viewing direction) on the camera plane ?
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