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Camera Match Helper 1391
Came ra Match He lper
Obj ects
Came ra Mat ch He lper
Create panel > Helpers > Camera M atch (from drop-down
list)
Create menu > Helper s > Cam era Point
Camera Match helper objects (CamPoints) are
used by the Camera Match utility to reproduce
in a camera the same sett ings (position, roll,
and FOV) that were used by a real-world
camera to shoot a background image. This
allows you to view your scene from the same
perspective as the background image, which is
a key step to mixing computer-generated and
photographically-generated images in a single
composited shot.
Camerapointobjectsareplacedinthesceneat
locations that will be visible in the background
photograph. By comparing the X/Y/Z position of
several camera p oint objects to their analogous
positions in a background image, the Camera
Match utility is able to determine the real-world
camera’s settings, and use these sett ings to either
create a new camera or move/reset an existing
camera to match them.
To s e e t h e CamPoint (page 2–1391) object ty p e ,
choose CameraMatch from the Object set list.
See also
CamPoint Helper (page 2–1391)
Camera Match Utility (page 2–1387)
CamPoint Help er
Create p a nel > Helpers > Camera Match > CamPoint
Create menu > Helpers > Camera Point
The CamPoint helper lets you create camera
points in your scene. These points are used by the
Camera Match (page 2–1387) utility to match the
camera with a photographic backg round. The
vi rtual camera is positioned to mimic t he position
of the actual c amera t hat was used to ta ke the
photograph.
Clicking Cam Point displays the Keyboard Entry
and Camera Match Point rollouts, which you use
to create and name the camera points.
Procedures
To crea te a camera mat ch point:
1.
OntheCreatepanel,clicktheHelperstab.
2. Choo se Camera Match from the list and click
theCamPointbuttonintheObjectTyperollout.
The button turns yellow w hen it is ac t ive. You
are now ready to create a camera point.
3. ChooseCreatemenu>Helpers>Camera
Point.
4. Click in the viewport to create a CamPoint
helper object. Alternatively, you can use the
keyboard to create a CamPoint object by
expanding the Keyboard Entry rollout, entering
values in the fields, and then clicking Create.
To position camera match points in y our scene, do
one of the fol lowing:
•Createyourcameramatchpointsusing
keyboard entry. Use this if you have accurate
actual measurements of the loc at ions of the
points.
• Build geometry that matches your scene
geometry, and then snap the points to the