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658 Chapter 12: Animation
Cam era Tracker: Match Mo ve
Rollout
Utilities panel > Utilities rollout > More button > Utilities
dialog > Camera Tracker > Match Move rollout
The Camera Tracker uti lit y’s Match Move rollout
automatically generates a c amera animation by
correlating the 2D position data of the movie
features gathered during the tracking phase with
the associated 3D feature points in the 3ds Max
scene.
Inter face
Cam era—Enters an object-picking mode for you to
select the camera that y ou will match-move. You
can either select the camera directly in the scene or
press “H” to bring up select by name dialog. Once
selected, t he camera name is placed in the picker
button, and other buttons and controls are enabled
in the utility. The selected camera is remembered
in the
.mot
settingsfileandrestoredonreopening
themovieinthecameratracker. Aswiththe
tracker point scene objects, the camera name is
stored and used when reloading, so make sure
it’s unique. The camera selected must be a Free
camera. It can be at any position and orientation
in the scene.
Match group
Lets yo u choose which camera parameters will
be estimated d uring the match-move. Those
parameters turned off will be derived from the
current Camera animation or position, so it’s
possible to pre-position or pr e-animate the match
camera with known moves or parameter settings
andhavethematcherestimatejustthemissing
parameters. The accuracy of the estimation
process increases substantially as the number of
parameters that need est imation decreases.
FOV —Camera FOV (field-of-view).
Pan —Rotation about the local camera Z axis.
Tilt—Rotation about the local camera X axis.
Roll—Rotation about the local camera Y axis.
Dolly—Movement along the loca l camera Y axis.
Truck- H—Movement along the loca l camera X axis.
Truck- V—Movement along the local camera Z axis.
Match Range group
Let’s you set the range of frames that w ill be
matched to set up the relationship between the
movieframesandthe3dsMaxsceneanimation
fram es. By default, the start fr ames are both set to
zero and the frame count is set to the smaller of
thenumberofframesinthemovieorthescene
animation. Sett ing a different Movie Start or