Creating a Custom Colour Transform

You can create and apply a custom colour transform that is applied on import from the Image / Transcode / LUT Options menu. In addition, you can create and apply a custom colour transform that is applied when rendering from the Render / Output menu.

1. From the LUT Type box, select Colour Transform.
2. Click Enable.
3. Click Custom.
4. Click Add to insert an empty row.
5. Click the Type button and select a type:
   • Shared: The default location for shared custom colour transforms (available to all applications that use Autodesk Colour Management).
   • Project: The project transform folder (saved with the project).
   • Autodesk: The default location for preset colour transforms supplied with the application. See Autodesk Color Transform Collection.
   • Import: Browse for colour transforms on your file system.
6. After you've selected a colour transform type, click the Transform button and select a transform. In addition to native .ctf files, you can also select files in several other supported LUT and transform formats.

   Information is displayed about the transform and the operations it contains.

7. To add more transforms to the end of the chain, repeat steps 4 to 6.
   You can also:

   • Select a row and click the Type or Transform buttons again to change a transform in the chain.
   • Select a row and mute the current transform using Shift+M.
   • Select a row and click Delete to remove a transform from the chain.
   • Use the Up or Down buttons to reorder the chain. Moving a transform up applies it earlier in the chain, and moving it down applies it later.
   • Activate the Invert button to invert the entire chain, that is, to convert from the original destination back to the original source.
     Note: Some colour transforms are impossible to invert perfectly. This happens when they map multiple input colours to the same output colour, such as when transforming from a large space to a smaller space. It is analogous to the fact that you cannot convert from a 12-bit signal to 8 bits and back to 12 bits again without data loss. In these situations, the Invert option maps the original output colour back to one of the original input colours, but applying the forward transform followed by the inverse transform will inevitably change some colours.

   All transforms in the list are applied. The highlighted row indicates which transform will be affected by Up, Down, and other buttons. Information about the highlighted transform also appears in the metadata panel.