Houdini 17.0 Compositing

Mask off areas of an image

Most compositing nodes support a mask. The mask confines the operation of the node to specific areas of the input image.

To...Do this

Mask an operation with a separate image

  1. Set up the compositing node that contains the mask image.

  2. Connect the mask node to the bottom (mask) input of the node you want to mask.

  3. You may need to go to the masked node’s Mask tab and set Operation mask to "Mask input".

Mask an operation using a plane (such as Alpha) from the input

  1. Go to the filter node’s Mask tab and set Operation mask to "First input".

  2. Use the pop-up menu next to "First input" to choose the plane or component to use as the mask.

    Houdini displays the name of the masking plane next tot the connection in the network editor .

Scale the effect of an operation (with or without a mask)

  • Go to the filter node’s Mask tab and change the Effect amount parameter.

Turn off masking of a node

  • Go to the node’s Mask tab and set Operation mask to "None".

Compositing

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Layers

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Advanced

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