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[REBOL] Re: alpha image blending...

From: antonr:iinet:au at: 23-Jul-2003 14:12

Just a reminder of the alpha-channel bug. Rebol/view shows the alpha channel of an image only when the top-left pixel has a non-zero alpha value. Compare these two: img1: make image! [2x2 #{ff0000ffff0000ffff0000ff} #{eeeeeeee}] img2: make image! [2x2 #{ff0000ffff0000ffff0000ff} #{00eeeeee}] view layout [image 100x100 img1 image 100x100 img2] Both undoubtedly have alpha channel data on them, but img2 has a zero alpha value on its top-left pixel. Perhaps this has something to do with it. Anton.