[egmehl]

It looks like if merge a set of mxi files that have channels beyond just the RGB (not sure about alpha) they are not saved in the exr file I specify for output.

They are in the MXI file though, so would it be possible to get mximerge to put those channels (custom alphas, material id, etc.) saved in images that support multiple channels like exr?

thanks!

[Brany]

You have to use the mximerge flag "-extractchannels". If your channels output mode was set to "Embedded", all channels and the render will be saved in the same exr/tiff file.

[egmehl]

Oh, very cool. I had interpreted that as meaning that it would save the channels to separate image files regardless of file format. Thanks for the clarification!