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OCIO colour space transform

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OCIO colour space transform is a Colour effect.

Converts the layer’s pixels from one colour space of the project’s OCIO config to another. The lists come from the config chosen in File ▸ Project settings ▸ Colour. A space left at Working space is the space Lumit composites in, so setting only Output colour space is an output transform and setting only Input colour space is an input transform.

ParameterControlRangeDefaultUnit
Input colour spaceDropdownThe config’s colour spacesWorking space-
Output colour spaceDropdownThe config’s colour spacesWorking space-
MixSlider0 to 100100Per cent
BlendDropdownNormal · Darken · Multiply · Colour burn · Linear burn · Darker colour · Add · Lighten · Screen · Colour dodge · Lighter colour · Overlay · Soft light · Hard light · Linear light · Vivid light · Pin light · Hard mix · Difference · Exclusion · Subtract · Divide · Hue · Saturation · Colour · LuminosityNormal-
OCIO configurationRead-onlyThe project’s config, read-only--
MatteLayerAny layer in the compositionNone-
InvertCheckboxOn or offOff-
ChannelDropdownLuminance · Alpha · Red · Green · BlueLuminance-

In the Effect Controls panel:

  • Matte is an input to an effect, scaling the strength. Invert inverts the mattes for calculating strength.
  • Input colour space: the space the layer’s pixels are taken to be in.
  • Output colour space: the space the pixels are converted to.
  • Mix: how much of the result replaces the original.
  • OCIO configuration: the name of the project’s config, read-only.
  • Matte and Invert drive the strength of the effect from another layer’s brightness; see Effects.