I'm trying to use rvio to rename the RGB channels in an exr to some artibrary name. I have that working with this command:
rvio in.exr -inchannelmap R G B -outchannelmap x y z -o out.exr
This works, however the compression is different (in.exr was zip, out.exr is piz), and all of the header from in.exr is lost. Is there a way to change channel names but preserve compression and metadata?