Houdini 21.0 Nodes Copernicus nodes

Camera Properties Copernicus node

Adjusts the camera properties of a layer.

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Every layer in COPs has a location and orientation in space, plus a camera attached to it. This lets you use the layer as an image receiver with the Rasterize COP or as a projector with the Project on Layer COP.

The default camera is an orthographic camera that sits 1 unit back from the center of the layer, with an imaging volume going from 1 unit back to the unit past the layer in Z.

Parameters

Projection

The basic projection type.

Perspective

A perspective transform where rays converge on the camera position. This is offset back by the focal length from the origin of the layer.

Orthographic

An orthographic transform where all rays are parallel.

Imaging Distance

The layer is placed a certain distance away from the eye of the layer’s camera. This controls how far this is. The distance can be set explicitly or adjusted from the current distance. It can also be set to automatically set the distance at which the layer will go through a particular point.

Imaging Point

The point in worldspace the imaging layer should go through. The imaging distance will be adjusted so the imaging plane will intersect this point. This makes it straightforward to stick the imaging layers on a focus object despite camera motion.

Near/Far

The near and far clipping of the camera, measured from the distance from the camera origin (rather than from the layer’s origin).

Focal Length

The distance, in the same units as Aperture, to set the camera’s origin back from the layer’s origin.

Aperture (mm)

The width of the camera’s aperture. This can be viewed as the width of the layer.

The ratio of focal length and aperture is what determines the offset of the camera. The absolute values are not relevant, so they can be in any unit as long as they're consistent.

Aperture Offset

The horizontal adjustment of the aperture, allowing offseting of the imaging point.

Shutter Open/Close

The metadata that controls when the camera should start receiving light and stop receiving light. This is relative to the frame rate.

Currently not used.

Focus Distance

The distance that should be in focus, relative to the layer’s origin. By default the layer is at the focus plane.

Currently not used.

F-Stop

Metadata specifying the f-stop for the camera.

Currently not used.

Inputs

source:

Outputs

camera_ref:

See also

Copernicus nodes