Hi everyone

I think i found a working fix for very screwy houdini interface refresh problem on Mac OS X.

There is more or less hidden option in Mac OS X to enable QuartzGL in order to somehow improve graphics performance.

Well after i did that little trick all my problems with houdini seems to go away!

No more problem redrawing interface which was really unusable.

Side effects from something like this? I dunno, but what i do know is that QuartzGL is framework apple implemented in OS X from some time now, which is disabled by default because it is replaced with more modern Quartz Extreme..

Anyways, here is the thing to do

Open Terminal.app which is located under Applications>Utilities>Terminal
and type this command

sudo defaults write /Library/Preferences/com.apple.windowserver QuartzGLEnabled -boolean YES

It will ask you for password, type your login password.

This command will force QuartzGL enabled on next reboot.

If you need to disable this option just use same terminal command with -boolean NO in the end of line.

I'm running Mac Pro with 10.5.6 Leopard.

P.S Note that i want to put disclaimer here, i'm not responsible if you want to try this “hack” on your own machine because this little trick might induce problems with other apps or something, for me it fixed the main problem and i can now use Houdini with no problems on a mac. It will also help if you dont run any other OpenGL based apps.

Cheers!

vedran 8)