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Camera "world" "float[10] shutteropening" [opentime closetime c1 c2 d2d1 d2 e1 e2 f1 f2]

The first two parameters, opentime and closetime are the same as the simpler version of shutteropening; they are the times at which the shutter becomes fully open and at which it begins to close. The subsequent eight parameters represent four points on a graph representing the motion of the shutter:

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