Hi,
I'm using a 3d software package that can only generate texture depths by using the pixels from a PNG alpha channel. In Photoshop this is a straight forward process. You would simply create a new alpha channel in the channels palate, copy the texture map and paste it into the newly created alpha channel. Then save the file as a PNG with the alpha channel option checked.
How do you achieve this in Affinity Photo?
I have attached two JPG files. What I'm looking to do is make the ROUGH file an alpha channel of the COLOR file. Any advice would be appreciated.
Many thanks.
