The error you are getting is so basic that either there is no available hardware or driver to access the hardware for GEM to use.  The only other time this error happens is when running a machine without a display attached at boot time.  For some reason the Apple GL drivers disable hardware rendering when running 'headless'.



On Jan 6, 2008 10:15 AM, Jonathan J. Davis <davis@snickers.org> wrote:

Hello Chris,

Is that what that "MAC: no info.context" is about, no OpenGL?

The AppleTV has an nVidia GeForce go7300 GPU, which should I think support
OpenGL 2.0 (There is a video on youtube of someone supposedly playing
Marathon Aleph One using OpenGL on his AppleTV).

If this is definatly the case, I will have to then start to find what is
preventing openGL from being loaded (?).

Thank you,
Jonathan



On Sat, 5 Jan 2008, chris clepper wrote:

||It appears there is no GL video hardware to use on the AppleTV.  This is not
||surprising given the intended purpose of the box.
||
||On Jan 5, 2008 5:43 PM, Jonathan J. Davis <davis@snickers.org> wrote:
||
||> Hi,
||>
||> I've been playing around with PD + GEM for a bit, and have setup a very
||> straight-forward delay for live video from a webcam.
||>
||> The problem comes when I try and use it on an AppleTV that I've gotten to
||> boot OS X 10.4.8 from an externa USB drive. I don't even get past creating
||> a GEM window. The following is what I get:
||>
||> [import] loaded library: Gem
||> GemwinMac: width - 500 height - 500
||> MAC: no info.context
||> error: GEM: Unable to create window
||> error: [gemwin]: GEM: gemwin: no window made
||>
||> At first I thought it might have been x11 due to not having installed it
||> and errors when I opened GEM, but thats not the case as I've added it. GEM
||> now opens without any errors but I still get the error.
||>
||> I'm using PD-extended 0.39.3
||>
||> Any advice? Are there components in OS X that have no loaded under the
||> AppleTV hardware that are causing me this problem?
||>
||> Cheers, and thanks in advance for any assistance,
||>
||> Jonathan
||>
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