A resource to add to an AnimationNodeBlendTree. Blends two animations subtractively based on the amount value.

This animation node is usually used for pre-calculation to cancel out any extra poses from the animation for the "add" animation source in AnimationNodeAdd2 or AnimationNodeAdd3.

In general, the blend value should be in the [0.0, 1.0] range, but values outside of this range can be used for amplified or inverted animations.