OCIO Transform Copernicus node

Converts color spaces using OCIO transforms.

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Parameters
Inputs
Outputs

This node provides access to OpenColorIO (OCIO) and uses your current OCIO settings to control the meaning and behavior. OCIO allows for standardized transforms between different spaces.

The Transform Method parameter controls which OCIO approach to color conversion the node uses. One approach moves between two color spaces, which handles remapping for the different white points and primaries and is invertible. The other approach computes a view transform, which can include tone mapping and isn’t invertible.

Note

Some parameters include a dropdown menu of color spaces. These include roles (the application’s workspace) that exist regardless of the configuration used and the color spaces defined in the default Houdini configuration file.

For more information about OCIO and color conversion, see Color management in Houdini.

Parameters ¶

Signature

The layer type that the source accepts.

See Signatures for more information.

Transform Method

The method used to convert the color spaces.

Between Spaces

Transform from one OCIO space to another. The meaning of these spaces depends on your OCIO configuration. This is invertible.

Space to View

Transform from an OCIO space into a view. This requires specifying a view and a display, and bakes the colors into final values that the hardware uses. This isn’t invertible.

Original Space

The space that the input color is in.

To Space

When Transform Method is Between Spaces, this is the desired output color space.

To Display

When Transform Method is Space to View, this is the desired output display device.

To View

When Transform Method is Space to View, this is the desired view. This may include non-linear tone maps.

Note

The choice of view may depend on the current display

Treat RGBA as Premultiplied

Un-premultiplies the RGBA layers before applying the transform, and then premultiplies the RGBA layers after applying the transform. This means areas with a black alpha have a black output.

Note

Color transforms are defined in RGB and may be non-linear, so they can’t be applied to just the RGB components of a premultiplied RGBA layer.

Inputs ¶

source

The original layer for which to adjust colors.

Outputs ¶

transform

The source layer with the adjusted colors.

Parameters ¶

Inputs ¶

Outputs ¶

Copernicus nodes