Houdini 22.0 Nodes Copernicus nodes

Layer Merge Copernicus node

Combines all inputs.

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This node outputs a combination of all its inputs based on the set Operation. This is done per channel.

Note

If you set Border to Auto and the input’s border property is Constant, the node instead applies the Clip border property.

Note

The inputs must all have the same Signature type. If you connect an input of a different type, Houdini applies the channel extension rules to automatically convert it into the required layer based on either the set Signature or first input.

Parameters

Signature

The layer type that the source accepts.

See Signatures for more information.

Space

The method used to determine which pixels in the foreground and background match.

See Spaces for more information.

Image

Match layers by image coordinates. Pixels remain square and match based on the 2D canvas in which the images are embedded, but ignore 3D transformations.

Texture

Match the data windows of the two layers. This stretches the layers so they overlap exactly.

Pixel

Match the display windows in pixel space. This ensures pixels are the same size, and uses the data window offset to offset the coordinates.

World

Use the background layer’s camera to project the foreground onto the background. This matches what you expect to see in the 3D viewport.

Border

The sampling behavior outside of the incoming layer’s boundaries. Automatically uses the layer’s border property.

See Border types for more information.

Filter

The method used to sample the image.

See Filters for more information.

Operation

The method used to combine the pixel values of the layers.

Add

Add the input layers' pixel values together.

Average

Use the average pixel value of the combined input layers.

Multiply

Multiply the input layers' pixel values together.

Min

Use the minimum pixel value of the combined input layers.

Max

Use the maximum pixel value of the combined input layers.

Over

Place the preceeding RGBA values over the following RGBA values. Non-RGBA layers copy the final layer’s pixels.

Clip by Data Window

Adds an implied mask that matches the data window of the fg input. This prevents the image from extending into the destination.

Note

The clipping is sharp.

Crop to Content

Crops the output layer to the size of the source layers' transformed data windows.

Inputs

source#

The original layer, VDB, or attribute to combine.

Outputs

combine

The combined source layers, VDBs, or attributes.

Copernicus nodes