Transform node
~~~~~~~~~~~~~~

The **Transform** node is variadic and applies a scale operation, a rotation and a
translation to the input images.

.. image:: images/node_transform.png
	:align: center

Inputs
++++++

The **Transform** node accepts one or more color images as input.

It also accepts a grayscale input image for each transform parameter. In that case,
instead of applying a uniform transform to the input image, the transform parameter
will, for each pixel, be multiplied by a value from -1 to 1 that depends linearly
on the corresponding grayscale input image (a black pixel will multiply the parameter
by -1, a white pixel will not change the parameter, a grey50 pixel will set it to 0).

Outputs
+++++++

The **Transform** node outputs the transformed inputs images.

The input images are first rotated around its center, then the scale operation is applied and
finally the translation.

Using the scale operation to zoom on a detail of the input image is only recommended if the
input does not rely on resolution dependant nodes.

Parameters
++++++++++

The **Transform** node has the following parameters:

* *Translate X* and *Translate Y* define the translation.

* *Rotate* define the rotation expressed in degrees.

* *Scale X* and *Scale Y* define the scale operations along the X and Y axes.

* *Mode* Defines the behavior beyond the limits for the input image:

    * **Clamp** stretches the edges
    * **Repeat** tiles the input
    * **Extend** shows parts of the input that are beyond the edges

Example images
++++++++++++++

.. image:: images/node_transform_samples.png
	:align: center
