Animating Keyer Properties

The following properties can be animated:

• Setup properties: key-in blur width and height.
• Key properties: the key color, and the minimum and maximum tolerance and softness values.
• Matte properties: lift, gain, shrink width, erode width, blur width and height, histogram input and output levels.

To view animatable properties, show the Timeline and expand the Keyer operator.

To play the clip while adjusting the key, use the two-viewport layout. See Setting Up the Viewports for Keying.

To animate the Keyer properties:

1. Use the frame controls or the indicator to navigate in your clip and preview the key on different frames.
2. Enable Animate.
3. Go to the frame where you need to adjust the key, and adjust the properties.

A keyframe is added at that frame. combustion calculates the in-between frames. When you play or scroll the clip, the image is updated to reflect any animation of the Keyer properties.

4. Preview the clip again. Add keyframes where necessary. To fine-tune the progression of the key, adjust the animation curve in Graph mode. For more information, see Keyframing.