Using Floating Point Images

3D Compositing with Action > Action: Basics >

You can use 16-bit floating point OpenEXR clips in Action. You can use clips of different resolutions on separate media, but you cannot specify clips of different resolutions to act as the front and matte clip of a specific media. Here are some things to keep in mind when working with 16-bit floating point clips:

You are not able to enter the Colour Corrector, Keyer, or Stabilizer from Action with a 16-bit floating point clip. An error appears in the Action message bar, and the module does not open.
All other Media List effects, such as blurring, cropping, and slipping are supported for 16-bit floating point clips, as are all Action objects.
Action operations and settings that are supported with 16-bit floating point clips include 3d tracking, textures, displacement mapping, motion blur, blending modes, anti-aliasing, and depth of field.
You can enable or disable colour clamping when working with 16-bit floating point clips in Action. When colour clamping is disabled, a light’s intensity can be set to brighter than 100% or darker than 0%, for example. The Colour Clamping button is located in the Setup menu’s Rendering section.
You can set the output resolution for your Action composite to 16-bit fp in the Frame Depth box located in the Setup menu’s Resolution section.
You are not able to burn 16-bit floating point clips. An error appears in the Action message bar.