Coord

Matrix

A normal matrix within Cinema 4D contains four vectors, for the position as well as the three axis directions on an object.

Via the Coordinates rubric of the object-creating nodes, additional parameters are offered, which allow e.g. the rotation of a matrix via angles or also the skewing of a matrix.

The following vectors are available to define a matrix:

  • Matrix.P: This is the position vector of the matrix, also called offset. This is used to specify the position of the axis system.
  • Matrix.R: These three values indicate the rotation of the matrix. The matrix can thus be rotated around the X, Y and Z axis directions via this rotation vector. The axis lengths remain the same and also the usual 90° angles between the axes remain. The matrix is therefore not distorted, but only rotated. You set the order in which the angles are transferred to the matrix under "Matrix.Order".
  • Matrix.S: This vector specifies the length of the three axis directions. The normal size of a matrix corresponds to the scale vector 1,1,1. The length of all three axes is therefore one unit each. Values deviating from this result in a compression or stretching of the geometry in the corresponding axis direction. Note that a scaling of the axes is also transferred to subordinate objects and can also lead to distortions of the geometry there.
  • Matrix.Sh: Here you specify the three angles of a Shear vector. This involves the rotation of individual matrix axes, leaving the remaining axes unaffected. The normal alignment of the axes in a 90° angle to the neighboring axis directions is thus canceled here, which leads to a skewing of the geometry. The first rotation angle tilts the Y-axis in the direction of the X-axis. The second value rotates the Z-axis of the matrix towards the X-axis and the third value rotates the Z-axis in the direction of the Y-axis direction.

Inputs

Op Input

Op Children

The Add Input and Remove Input buttons on the node can be used here to create the desired number of inputs for shapes that are to be grouped under the Null system.

Matrix

Here you can set the matrix of the node or route a matrix to the node.

Outputs

Op Output

Here you will find the created group with the null structure as parent and the assigned children shapes as child objects.

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