Hi Sébastien, I had to add two lines to get reasonable results:
> > -- get the original alpha channel > alphaBuffer = imgDest.extractAlpha() imgDest.useAlpha = FALSE > > > -- copy the bitmap data > copyPixels(imgDest, imgSrc, rDest, rSrc) > > -- copy the alphachannel pixelmap > alphatoAdd = imgSrc.extractAlpha() > alphaBuffer.copyPixels(alphatoAdd, rDest, rSrc, [#ink:39]) > > -- apply the alpha changes > imgDest.setAlpha(alphaBuffer) imgDest.useAlpha = TRUE > > > end -- CopyPix32 handler Without those changes, the background had the right alpha, but with color taken from the top image. With these changes, it's much better, but any partially transparent pixels in imgSrc become white (the more transparent, the more white they become). So in the example I posted before (which I have reposted using your code), the drop shadow of the top text becomes white, instead of black. Many composites won't have large transparent sections in the top image, so it wouldn't always be a problem. I tried many variations on inks and masks with copypixels in my testing before writing the pixel by pixel method, including isolating the masks and using darken ink. None of them produced a proper composite. As you imply, the method to use depends on the desired results. Thanks! Daniel [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
