Good catch Scott. I have been reading through the snow leopard changes
and have not come across this yet. Am looking for it now.
Thanks
Tom McGrath III
Lazy River Software
3mcgr...@comcast.net
iTunes Library Suite - libITS
Information and download can be found on this page:
http://www.lazyriversoftware.com/RevOne.html
On Jan 14, 2010, at 1:27 PM, Scott Rossi wrote:
This might be useful for folks delivering image-heavy apps on Mac OS
X 10.6
and later...
Apparently with Snow Leopard, Apple has changed the default gamma of
the
system to 2.2 (used to be 1.8).
<http://blogs.adobe.com/jnack/2009/09/why_your_web_content_will_look_darker
.
html>
I was recently throwing some PNG images on a card on Rev that looked
significantly darker than where they were created (in Photoshop),
and for
the life of me could not figure out why. I'm still searching for a
reliable
way to strip the gamma information from PNG images, but after
finding the
above article, I tried changing the screenGamma in Rev to 2.2 and
amazingly
(or maybe expectedly) the image seems to display properly.
set the screenGamma to 2.2
I need to do some more testing, but it appears that when delivering
apps on
Snow Leopard that make heavy use of PNGs, one will need to do
something to
the effect of:
if "mac" is in platform() and systemVersion() > 10.5 then ...
Also used the following method to force refresh the display of the
image:
set text of img 1 to text of img 1
Hope this saves some head banging for other folks using images.
Regards,
Scott Rossi
Creative Director
Tactile Media, UX Design
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