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Assign Position Click a location on the viewport bitmap to place a screen
coordinate point visually against the background image. The point you place
corresponds to the currently selected CamPoint object. After activating the
Assign Position button, select a CamPoint object from the list, and then click
in the viewport at a position on the bitmap background that corresponds with
where the associate CamPoint object should be in the 3D scene. After repeating
this process with each CamPoint object in the list, you can click the Create
Camera button to create a camera that matches the placed coordinates with
their associate CamPoint objects.
Camera Match rollout
Create Camera Creates a camera in the scene whose position, orientation,
and field of view is based on the current location of the CamPoint helpers
and the assigned screen coordinate points.
Modify Camera Modifies the position, orientation and FOV of an existing,
selected camera based on the CamPoint helpers and assigned screen coordinate
points.
Iterations Maximum number of iterations used to calculate the camera
position. Default is 500, though a stable solution is usually found in less than
100 iterations.
Freeze FOV Prevents the FOV (field of view) of the camera from being changed
when using the Create Camera or Modify Camera buttons. Use if the FOV of
the camera that took the photograph is known and you want to preserve it.
5254 | Chapter 18 Lights and Cameras