defines the value input range that is mapped to output range The default CompressionMode of RCM_UNorm will modify values to fit in [0,1] it is recommended to always use RCM_MinMax instead, which leaves values unchanged if you do want scaling into [0,1] do it after the fact using ScaleChannelsSoMinMaxIsInZeroToOne
InCubeFace
defined which cubemap side is used, only required for cubemap content, then it needs to be a valid side