nanogui: Usage of Alpha Transparency in PNG Files
Subject:
Usage of Alpha Transparency in PNG Files
From:
Marius Zwicker ####@####.####
Date:
11 Mar 2009 22:07:04 -0000
Message-Id: <575DFA76-4C85-4677-8188-DD2F62AFF692@numlz.de>
Hi,
I'm trying to use a PNG File with Alpha Channel via
GrDrawImageFromFile to realize shadows and certain design elements. As
this seemed not to be implemented in the 0.91 release of nano-X I
already downloaded and built the latest CVS version. According to this
mailing list the png-transparency issue should be fixed by now.
Unfortunately this is not the case (?). When trying the latest
development version, it leaves out 100% transparent parts (as
expected) but draws parts with less transparency (e.g. 50%) as pure
black areas and not semi transparent.
Where's my mistake? All png's were created using photoshop... Please
help.
Thanks a lot,
Marius Zwicker
