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Core Image layer transparency on 10.5

Posted by Tom De Smedt on Oct 20, 2008

I've noticed some issues with the Core Image library on Mac OS X 10.5 (Leopard). If you use fill and gradient layers that are not entirely opaque the output may be garbled. One trick to fix this is to use a solid background instead of a transparent one:

coreimage = ximport("coreimage")
canvas = coreimage.canvas(500, 500)
bg = canvas.append(color(1))
...
It might be a while before I have the time to fix the bug.