Applies tone mapping to an OpenEXR image, reducing the dynamic range of the image so that it can be viewed on your monitor. The Exposure, Defog, Knee Low, and Knee High parameters allow you to control how the pixels in the high-dynamic range image are mapped to a lower dynamic range.
A recommended workflow is to apply the OpenEXR Tone Map filter to the result of your composite. In other words, apply the OpenEXR Tone Map filter after you’ve applied other filters to the OpenEXR image or blended the image with other images in your project.
Note: An OpenEXR file imported into Motion 5.0.2 or later is maintained as a high-dynamic range image and will appear brighter than in earlier versions of Motion (until you specifically alter the image). Prior to version 5.0.2, Motion forced tone mapping on imported OpenEXR images. In Motion 5.0.2 or later, when you open an older project containing an OpenEXR image, an OpenEXR Tone Map filter is automatically applied to the image so that the project retains its original appearance.
To maintain the full dynamic range of an image being exported as an OpenEXR file, disable the OpenEXR Tone Map filter prior to exporting.
Adjust this filter using the parameter controls in the Filters Inspector:
Exposure: Lightens or darkens the displayed image, revealing more detail at the low end or high end of the image.
Defog: Attempts to remove “fog” in an image. While recording, stray light in the camera may cause fogging of your image, creating unwanted light.
Knee Low: Sets the low end of the white and middle gray values displayed in the image. Values between Knee Low and Knee High are compressed, allowing you to display a wider range of pixel values without clipping.
Knee High: Sets the high end of the white and middle gray values displayed in the image.
Mix: Sets the percentage of the original image to be blended with the modified image.