Blends two of three animations additively inside of an [AnimationNodeBlendTree]. A resource to add to an [AnimationNodeBlendTree]. Blends two animations out of three additively out of three based on the amount value. This animation node has three inputs: - The base animation to add to - A "-add" animation to blend with when the blend amount is negative - A "+add" animation to blend with when the blend amount is positive If the absolute value of the amount is greater than [code]1.0[/code], the animation connected to "in" port is blended with the amplified animation connected to "-add"/"+add" port. [b]Note:[/b] The signs are only used to distinguish ports, and additive blending occurs based on absolute values always, meaning the animation of a "-add" port does not subtract from the animation of an "in" port. $DOCS_URL/tutorials/animation/animation_tree.html https://godotengine.org/asset-library/asset/2710