To access the
Transform Offset Parent Matrix
- Select the node tab in the
Attribute Editor, locate the
Transform Attributes and expand
Transform Offset Parent Matrix drop-down.
The
Transform Offset Parent Matrix widget in the
Attribute Editor lets you put a matrix into a node so you can edit the values. You can also view and edit, in a separate tab, its composition. It is an adaptable new paradigm in Rig animation, gives you cleaner rigs and better performance. See also
Edit Transform Offset Parent Matrix attributes.
The Matrix is a 4 x 3 (Composition tab) or 4 x 4 (Matrix tab) array of floats that represent the translation, rotation, scale, and sheer of a transform node. It inserts itself between its parent and local calculation, so that if you move the parent, the child is moved.
The Transform Parent Matrix tabs in the Attribute Editor
A. Composition
B. Matrix
The values in both the
Composition and
Matrix tabs are linked, as they represent the same transformation but in two different ways. If you change the values in the
Composition tab, it affects values in the
Matrix tab, and the same is true in the inverse.
Note: An
Identity Matrix is a neutral matrix that represents the World, or center of you scene. It contains 16 values: value of 1 on the diagonals, but with everything (translation, rotation, and scaling) set to 0 so it decomposes to a translation, rotation of 0, with a scale of 1 and a shear of 0.
- Composition tab
- Modify the
Scale,
Translate,
Rotate,
Shear components. The Composition Matrix is a 4 x 3 table.
- Right-click any editable field in the widget to set the matrix to Identity, Invert, or Locked. Refer to
Transform Offset Parent Matrix states, below, for status colors. The composition tab lets you view and edit the matrix attributes.
- Matrix tab
- Right-click any editable field in the widget to set the matrix to Identity, Invert, or Locked. The Matrix is a 4 x 4 Identity matrix.
- Refer to
Transform Offset Parent Matrix states, below, for status colors.
For information on chaining matrix operations together, see
Matrix Utility nodes.
Transform Offset Parent Matrix states
The
Transform Offset Parent Matrix value fields display colored fields to give you visual feedback on attribute status:
Background Color
|
Meaning
|
Yellow
|
Attributes connected., which means the attribute is controlled by another attribute.
To edit
Composition and
Matrix tabs, they must not be in a Connected (yellow) state.
|
Grey
|
Attributes locked
|
Black
|
Attributed not connected
|
Note: You cannot edit fields when they are connected or locked. To unlock or disconnect an attribute, right-click the field and select
Unlock. See
Edit Transform Offset Parent Matrix for a description of the contextual menu.
|