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Hej<br>
<br>
i just chime in, playing around with a raspi3 and the openGL driver.<br>
<br>
i second the statement, that the driver is pretty alpha, but it
seems to work, if one tweeks the right screws.<br>
<br>
on installing GEM:<br>
<br>
i did not compile from hand, but used the GEM version, that comes
with the pies add-software.<br>
this provides the latest GEM stable, 0.93.3, <br>
starting pd from the terminal with <br>
pd -lib Gem<br>
<br>
<br>
on activating the driver:<br>
the process of activating the driver gave me some headaches.<br>
- problem: flashing rainbow-square, solution: proper power supply,
2.5A! (i finally used a rasppi-branded one)<br>
<br>
- problem: black screen after boot, when driver is activated,
solution:<br>
<br>
the problem doesnt seem to affect all users, so maybe it is related
to the EDID-communications<br>
of the different screens, at least thats a guess of some people.<br>
<br>
i found, that some users overcame this problem by adding some
information to /boot/cmdline.txt<br>
(not to the /boot/config.txt)<br>
basically defining the resolution of the pi.<br>
<br>
found here(the comments to the release announcment):<br>
<a class="moz-txt-link-freetext" href="https://www.raspberrypi.org/blog/another-new-raspbian-release/#comment-1253188">https://www.raspberrypi.org/blog/another-new-raspbian-release/#comment-1253188</a><br>
<br>
" <cite class="fn">Edward Pike</cite> <span class="says">says:</span>
<div class="comment-meta commentmetadata"><a
href="https://www.raspberrypi.org/blog/another-new-raspbian-release/#comment-1253188">
12th Feb 2016 at 6:05 pm</a> </div>
<p>HI</p>
<p>None of my hdmi settings worked in config.txt; I got the black
screen.</p>
<p>HOWEVER, I put the video resolution as a kernel parameter and IT
WORKED. Mine is as follows (note the video=..) parameter (it
depends on the actual device of course).</p>
<p>pi@raspberrypi:/boot $ cat cmdline.txt<br>
dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1
root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline
fsck.repair=yes rootwait video=1360×768"<br>
</p>
<p>with this added "video XXXXxYYYY" i was able to boot and use GEM<br>
as i would have expected. <br>
only thing is, when entering a lower resolution then the native
resolution of the connected display device,<br>
the screen is somehow divided and has colored pixels on the left.<br>
so it is not exactly plug'n'play.<br>
</p>
<p>the other necessary setting, that is covered in most of the
raspi-forums:<br>
- set the GPU-Memory to 128mb via raspi-config<br>
</p>
<p>anyway, i happily use the extendedviewtoolkit for video mapping
on a pie now,<br>
</p>
<p>a side note:<br>
when using PD with the activated openGL driver, i can't see any
patchcords anymore, except<br>
if they are straight downwards. well, for the moment i can live
with that, since i prepare the patches on a different machine.<br>
</p>
<p>maybe if i change the width of the patchcords to more than one
pixel, i would be able to see them.<br>
i will have a look into that on the weekend.<br>
</p>
<p>so far, my experience.<br>
unluckily no guarantee it works for all the pies out there.<br>
</p>
<p>i will share my further findings with this list.<br>
</p>
<p><br>
cheers, peter<br>
</p>
<p><br>
</p>
<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 2016-04-20 11:57, Antoine Rousseau
wrote:<br>
</div>
<blockquote
cite="mid:CAOCG5HxZpeorCduTFHcYdtFWBkJcU8v=LC3ZcsqsyYot=WMzCg@mail.gmail.com"
type="cite">
<div dir="ltr">From my (recent) experience, I would say that
openGL is still very 'alpha' on both pi2 and pi3 (blinking
screen, buggy pd GUI missing many objects...)<br>
<br>
So personally for current works I sticked to GLES, using
openframeworks through POF (<a moz-do-not-send="true"
href="https://github.com/Ant1r/ofxPof">https://github.com/Ant1r/ofxPof</a>)
; I still have to commit latest pofFilm fixes.<br>
<br>
No model nor light in POF yet though, sorry...<br>
<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2016-04-19 18:50 GMT+02:00 Antoine
Villeret <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:antoine.villeret@gmail.com" target="_blank">antoine.villeret@gmail.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">I build Gem from git on RPi 2 in the
beginning of February and wrote a report on this list
<div>the build might work with RPi3 and is in Deken</div>
<div><br>
</div>
<div>+</div>
<div>a</div>
</div>
<div class="gmail_extra"><br clear="all">
<div>
<div>--<br>
do it yourself <br>
<a moz-do-not-send="true"
href="http://antoine.villeret.free.fr"
target="_blank">http://antoine.villeret.free.fr</a><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div>
<div class="h5">2016-04-19 17:38 GMT+02:00 Bastiaan
van den Berg <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:buzz@spacedout.nl" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:buzz@spacedout.nl">buzz@spacedout.nl</a></a>></span>:<br>
</div>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<div class="h5">
<div dir="ltr">
<div>You need to enable opengl first, as noted
on ; </div>
<div><br>
</div>
<a moz-do-not-send="true"
href="https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=128464"
target="_blank">https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=128464</a><br>
<div>--</div>
<div>buZz</div>
</div>
<br>
</div>
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-- <br>
<div class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div dir="ltr"><font face="arial, helvetica, sans-serif">
Antoine Rousseau </font></div>
<div dir="ltr"><font face="arial, helvetica, sans-serif"> <a
moz-do-not-send="true" href="http://metalu.net"
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moz-do-not-send="true"
href="http://www.metaluachahuter.com/compagnies/al1-ant1/"
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