I'm having problems with graphical corruption on MorphOS 3.1 on my Mac Mini G4 1.5GHz. The problem seems to occur when using OpenGL textures larger than 1024x1024 (as used for the background image in the default XAMOS example - textures are rounded up to the next power-of-two):

xamos_mos_bug.png

There are also colour (and alpha channel) endianness issues at present which should be relatively easy to fix.
When ran on an SDL screen on MorphOS, it is pretty smooth though now with less than 50% CPU load.

(An Intel Atom netbook with WinXP does better - less than 5% CPU load with no graphics corruption.)

[ Edited by Mequa 28.08.2012 - 02:59 ]