I
am sorry to ask this, but I am new to Mac Programming. Do you have to switch entire
application to use OpenGL? Or is
there a routine to access specific OpenGL
routines?
Thanks
Kanghoon
Lee
From: John Stiles
[mailto:email@hidden]
Sent: Tuesday, November 16, 2004 1:55
AM
To: klee04
Cc: email@hidden
Subject: Re: Fast Screen
update
You could use OpenGL. It would
be much faster.
If you require 10.4, you could use CoreImage. That would
also be faster.
Another idea for performance: make a borderless window
that's filled with solid white. Position it directly above your image. Now
change the alpha of this window corresponding to how bright you want the
picture to be. (If you want to turn the brightness DOWN, then fill the window
with black instead of white). This is kind of cheesy but is less work than
switching your entire app to use OpenGL.
On Nov 15, 2004, at 2:32
AM, klee04 wrote:
Hi,
Is
there a way to update changes to image faster on the screen? I tried to
change brightness of a 2 MB photo image, and it is too slow. I, however,
tried another program, and it changes brightness instantaneously. Any
help would be greatly
appreciated.
Thanks,
Kanghoon
Lee.
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