Fred Kiefer wrote:
Clemens Arth wrote:
I've tried to implement the OpenGL example in Aaron Hillegass' Cocoa
Programming book (chapter 33) in gnustep. Unfortunately I couldn't get
it to work - the window doesn't show anything.
Can someone provide me with a small simple OpenGL example in gnustep? I
couldn't find anything useful googling...
An example for OpenGL usage with GNUstep can be found in the myGL
project in the gui samples (devmodules/usr-apps/examples/gui/MyGL).
But I just tested that and it seems to be broken. Most likely the whole
OpenGL code in GNUstep has bit rotted. This may be due to the changed
visual selection in GNUstep, we now try to get the best possible visual.
Somebody with a little bit more OpenGL knowledge should look into this.
The only thing I can suggest to verify this suspicion is hack into
bestContext() in back/Source/x11/context.m
Fred
PS: Just tried the gnustep-gears example and it has the same problem.
Hi Fred,
thanks for your hints. I downloaded the gnustep-gears from
http://amstradstuff.free.fr/GNUstep/
and compiled it. On startup, the view is simply a white field.
Starting the demo it looked a bit strange first, but this might be due
to some bad initialization of the width/height of the view. As soon
as I resize the entire window (and thus reshape the view), the demo
works perfectly well (at least on my configuration, running Ubuntu
8.10 and the default gnustep packages). I will test it on an other
machine this afternoon with the latest stable releases, because I
think the contents of the current Ubuntu repositories are a little
outdated (e.g. Gorm 1.2.2 vs. 1.2.8).
Anyway, thanks - I'll have a closer look at the gnustep-gears
Clemens
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