42 lines
1.3 KiB
ReStructuredText
42 lines
1.3 KiB
ReStructuredText
Transform node
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~~~~~~~~~~~~~~
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The transform node applies a scale operation, a rotation and a translation to the input image.
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.. image:: images/node_transform.png
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Inputs
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++++++
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The transform node accepts a color image as input.
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It also accepts a greyscale input image for each transform parameter. In that case,
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instead of applying a uniform transform to the input image, the transform parameter
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will, for each pixel, be multiplied by a value from -1 to 1 that depends linearly
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on the corresponding greyscale input image (a black pixel will multiply the parameter
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by -1, a white pixel will not change the parameter, a grey50 pixel will set it to 0).
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Outputs
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+++++++
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The transform node outputs the transformed image.
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The input image is first rotated around its center, then the scale operation is applied and
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finally the translation.
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Using the scale operation to zoom on a detail of the input image is only recommended if the
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input does not rely on resolution dependant nodes.
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Parameters
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++++++++++
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The transform node has the following parameters:
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* *Translate X* and *Translate Y* define the translation.
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* *Rotate* define the rotation expressed in degrees.
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* *Scale X* and *Scale Y* define the scale operations along the X and Y axes.
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* If *Repeat* is checked, zooming out will repeat the image, otherwise it will be clamped.
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