Houdini 22.0 Nodes Compositing nodes

Window compositing node

Cuts a small window out of a larger image.

On this page

Old network

As of Houdini 20.5, use Copernicus nodes instead of Compositing nodes. Though both networks still exist, the Compositing network is now designated as COP Network - Old. The Compositing network and its nodes will be deprecated and then removed in a future Houdini release.

This operation reduces the resolution of the image, and allows you to focus in on a specific area of the image. It does not replace the area outside the windowed area with black; the original image information is kept.

This operation effectively does a Transform and Crop.

Note

If Large Canvas support is off, this node does exactly the same thing as the Crop operation.

Parameters

Method

The window area can either be represented by 2 opposite points of a rectangle, or the rectangles lower left corner and its width and height.

Units

Specifies the units to crop in, either pixels or UV.

Horizontal Area

The left/right bounds of the window area. This parameter cannot be animated; use the Offset parameter to pan the image through the window.

Vertical Area

The bottom/top bounds of the window area. This parameter cannot be animated; use the Offset parameter to pan the image through the window.

Offset

An animatable image offset, so the image may be panned through the area.

Hold Edges Outside Image Bounds

This determines the behavior of the crop when the crop window goes outside the normal image bounds. If on, the edge pixels will be streaked outward to fill the outside area. If off, black pixels will be used.

Locals

L

Sequence length

S

Start of sequence

E

End of sequence

IL

Input sequence length

SR

Sequence frame rate

NP

Number of planes in sequence

W,H

Width and height of image

I

Image index (0 at start frame)

IT

Image time (0 at start frame)

AI

Current plane array index

PI

Current plane index

PC

Num of channels in current plane

CXRES

Composite Project X resolution

CYRES

Composite Project Y resolution

CPIXA

Composite Project pixel aspect ratio

CDEPTH

Composite Project raster depth

CBP

Composite Project black point

CWP

Composite Project white point

See also

Compositing nodes