inputMasteringLuminance
Specify which inputs use this 3D LUT, according to their luminance. To apply this 3D LUT to HDR10 or P3D65 (HDR) inputs with a specific mastering luminance: Enter an integer from 0 to 2147483647, corresponding to the input's Maximum luminance value. To apply this 3D LUT to any input regardless of its luminance: Leave blank, or enter 0.