Articulation Node

The Articulation node is no longer used in the current release of Harmony. This node is still available for compatibility purposes with previous deformation rigs.

The Articulation node is used between two bones (legacy) to create a joint where the limb or element will rotate. The current Bone and Game Bone nodes include the articulation parameters.

Properties

Parameter Description
Enable/Disable

Enables or disables the selected node in the Camera, Timeline, and Node views.

Colour Swatch

Changes the node and layer colour.

Name Use this field to rename the node.
Resting Parameters
Rest Radius Lets you set the resting radius of the articulation (size of the circle).
Resting Orientation Lets you set the resting rotation angle value of the articulation.
Rest Bias Lets you set the resting bias value of the articulation, which can also be seen as the steepness of the articulation. The smaller the bias value, the smoother the articulation angle, and the larger the bias value, the more angular the articulation is.
Deformation Parameters
Radius Lets you set the radius of the articulation (size of the circle). When animated, this value will be connected to a function.
Orientation Lets you set the rotation angle value of the articulation. When animated, this value will be connected to a function.
Bias Lets you set the bias value, which can also be seen as the steepness of the articulation. When animated, this value will be connected to a function.
Region of Influence
Influence Fade Radius This defines the size of the fade area around the actual region of influence's boundaries—see Articulation Node.
Transversal Influence Radius Left

When the Symmetric Ellipse of Influence option is enabled, this field controls the Left and Right transversal radius values. When disabled, it controls the size of the left transversal radius. By default, this value is set to 2.

Transversal Influence Radius Right

When the Symmetric Ellipse of Influence option is enabled, this field becomes inactive. The Left Transversal radius value is automatically applied to the Right Transversal. When the Symmetric Ellipse of Influence option is disabled, it controls the size of the Right Transversal radius. By default, this value is set to 2.

Longitudinal Influence Radius Begin

When the Symmetric Ellipse of Influence option is enabled, this field becomes inactive. The End Longitudinal value is automatically applied to the Begin Longitudinal value. When the Symmetric Ellipse of Influence option is disabled, it controls the size of the Begin Longitudinal radius. By default, this value is set to 0.25.

Longitudinal Influence Radius End

When the Symmetric Ellipse of Influence option is enabled, this field controls both the Begin and End Longitudinal radius values. When this option is disabled, it controls the size of the End Longitudinal radius. By default, this value is set to 0.25.

Symmetric Ellipse Influence

Enabled by default. The shape of the ellipse will be symmetrical on both the transversal and longitudinal radii. In this case, use the Transversal Influence Radius Left field to set the transversal radius value and use the Longitudinal Influence Radius End field to set the longitudinal radius value. The two other fields will remain unused unless you disable the Symmetric Ellipse Influence option. In that case, you can set up different radius sizes for the four radii directions.