- 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.