#50183 [Com]: PNG alpha blending doesn't seem to work

ID: 50183 Comment by: scratch65535 at att dot net Reported By: scratch65535 at att dot net Status: Feedback Bug Type: GD related Operating System: W2K PHP Version: 5.2.11 New Comment: So the documentation is broken then? "The two images will be merged according to pct which can range from 0 to 100. When pct = 0, no action is taken, when 100 this function behaves identically to imagecopy() for pallete images, while it implements alpha transparency for true colour images. " Previous Comments: ------------------------------------------------------------------------ [2009-11-15 18:26:39] scratch65535 at att dot net UGH! I just did another test using a more sophisticated image (semi-transparent pixels) and "GIF mode" doesn't work for what I want. It seems possible that imageCopyMerge() might be the culprit here or at least one of them, because if I call imagePNG on the $src, I don't get the white background color. ------------------------------------------------------------------------ [2009-11-15 18:21:58] pajoye@php.net Quick note: imagecopymerge is not supposed to work with alpha. See the examples code here: http://pierre.libgd.org/watermark/ ------------------------------------------------------------------------ [2009-11-15 17:50:06] scratch65535 at att dot net Expected: http://www.kalleload.net/uploads/gricmj/suhmidvvdrvt.jpg Got: http://www.kalleload.net/uploads/otgxlc/fdahibpvswas.jpg As I mentioned, I can get rid of the magenta - I left it in to show the size of the "assembly" area. But that white background in the PNG defeats me. ------------------------------------------------------------------------ [2009-11-15 17:31:56] pajoye@php.net Upload the two images here: http://kalleload.net/, that will do it just fine. ------------------------------------------------------------------------ [2009-11-15 17:30:40] scratch65535 at att dot net AT&T is my only web access, and they don't seem to support PHP. I can upload screenshots if that's what you're looking for, but of course they'll just be dead bitmaps. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/50183 -- Edit this bug report at http://bugs.php.net/?id=50183&edit=1