Masking plugins for Acorn

CreateMask.py           v0.1    01-Oct-2007
MaskDown.py             v0.1    01-Oct-2007
MaskDownToNew.py        v0.1    01-Oct-2007

I'll have a proper page here real soon now.

In the meantime, please see the thread on the Acorn forum. To install, save (changing the extension from _py.txt to .py) in ~/Library/Application Support/Acorn/Plug-Ins.

Note: If what you want to mask against is not the alpha value of an underlying layer but the white value (that is, you want to erase your image where the layer is white, and keep it where it is black), you'll want to first apply the White to Alpha CoreImage plugin to the lower layer to convert it to an alpha mask. Then use the above plugins to apply the mask.

Update 31-Oct: Welcome, readers of Image is Everything, Jon Whipple’s thorough review of Acorn (plus two other young whippersnapper image editors).

~ds • toastycode