Flash Filter Checks
To prevent motion tweens from functioning incorrectly in the event of a missing filter at one end of the tween or filters applied in a different order, Flash performs the following checks:
- If a movie clip has filters applied on one frame, and a motion tween is applied to the frame, upon inserting a keyframe at the opposite end of the tween, the ending keyframe will automatically have the same filters with the same stacking order as at the starting frame of the tween.
- If you place movie clips on two different frames with different filters applied to each, and a motion tween is applied between the frames, the movie clip with the most filters is processed first. Flash then compares the filters applied to the first movie clip against those used by the second movie clip.
- If a motion tween exists between two keyframes:
- Adding a filter to the object in one keyframe automatically adds a dummy filter to the keyframe at the other end of the tween.
- Removing a filter from an object in one keyframe automatically removes the matching filter from the keyframe at the other end of the tween.
- If filter parameters are set inconsistently between the beginning and end of a motion tween, interpolated frames have the filter settings of the starting frame applied. Inconsistent settings occur when the following parameters are set differently between the beginning and end of the tween: Knockout, Inner Shadow, Inner Glow, type of Gradient Glow, and Gradient Bevel. For example, if you create a motion tween using the drop shadow filter, and apply a drop shadow with a knockout on the first frame of the tween, and an inner shadow on the last frame of the tween, Flash corrects the inconsistent use of the filter in the motion tween. In this case, Flash applies the filter settings used on the first frame of the tween—a drop shadow with a knockout.
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