Camera identifiers may be declared to make scene files more readable and to parameterize scenes so that changing a single declaration changes many values. You may declare several camera identifiers if you wish. This makes it easy to quickly change cameras. An identifier is declared as follows.
#declare = CAMERA |
#local = CAMERA
Where IDENTIFIER is the name of the identifier up to 40 characters long and CAMERA is any valid camera statement. See "#declare vs. #local" for information on identifier scope. Here is an example...
#declare Long_Lens =
camera {
location -z*100
angle 3
}
#declare Short_Lens =
camera {
location -z*50
angle 15
}
camera {
Long_Lens // edit this line to change lenses
look_at Here
}