When you save a file to the Corel Painter file format (RIFF), the alpha channels that are stored in the file are retained. They are also retained when exporting Corel Painter files in the Adobe Photoshop (PSD) format. In addition, if you import an Adobe Photoshop file that contains alpha channels in Corel Painter, the alpha channels are supported.
It is important to note that when you open RGB-based Adobe Photoshop files in Corel Painter, anything in the alpha channels (#4 and above) appear as a channel in Corel Painter. Conversely, when you export your Corel Painter file in the Photoshop format, all channels are placed into channels #4 and above.
