I don't know much about those Apple specific YUV flags. But sniffing developer.apple.com, their docs warn that if you use GL_YCBCR_422_APPLE + GL_UNSIGNED_SHORT_8_8_REV_APPLE, you need to "make sure to test these combinations on a device-by-device basis": http://developer.apple.com/documentation/GraphicsImaging/Conceptual/OpenGLProfilerUserGuide/Strategies/Strategies.html#//apple_ref/doc/uid/TP40006475-CH40-DontLinkElementID_23
..which I take to mean it won't work on all platforms just as you describe. Arne Magnus Bakke wrote: > Does someone have any idea what the problem is? Is the example working > on your mac? I've seen the bug on several Macs running OSX 10.5.6 with > Nvidia 8XXX graphics cards. _______________________________________________ fltk-opengl mailing list fltk-opengl@easysw.com http://lists.easysw.com/mailman/listinfo/fltk-opengl