Hello all, My bad, UDOO supports OpenGL ES 2.0 and OpenVG. So getting GEM working on it is closer to the RPi than i thought.
Are the porting efforts of GEM for RPi being documented somewhere? Is IOhannes m zmölnig still working on GEM? ali On Mon, Sep 9, 2013 at 10:53 AM, Dan Wilcox <[email protected]> wrote: > It's not that the RPI doesn't support OpenGL, it's that it's using OpenGL > ES which drops some of the earlier GL 1.1 api, mainly intermediate mode. > GEM can/will work fine on RPI if it's api is updated a bit to support ES > (or through an emulation layer like glshim). This is a good idea in the > long term anyway, since newer implementations of GL (3.3+) are also > dropping support for the "old way" of doing things. > > I've long thought that GEM could be ported to work on iOS, but I haven't > had a need for it so haven't looked into it. In that case, there would need > to be some function wrapping to support the old GL API, but this has > already been done in libraries like OpenFrameworks, so they could be used > as a template. Simple things like using a vertex array when setting vertex > points in intermediate mode, etc ... > > If the Udoo board has a regular GL 1.1, 2+ stack then it should work fine > with GEM without any changes ... except that, unlike the RPI, it will > require running X11 in order to use XGL. OpenFrameworks on the RPI, for > instance, uses GLES without X11 and thereby doesn't waste resources on the > windowing system. In my experience with embedded Linux system, it's best to > ditch X if you truly do not need it. ON my old setup, X took almost 100 MB > of ram on my 256 MB system. Running my custom SDL visual app directly to > the framebuffer took only 1 couple of MBs by comparison. > > Then again, embedded systems nowadays have more and more resources to burn > so it may work without having to be frugal. (although efficiency is still > important IMO). > > On Sep 9, 2013, at 10:03 AM, [email protected] wrote: > > *From: *Ali Momeni <[email protected]> > *Subject: **Re: [PD] GEM on raspberry pi* > *Date: *September 9, 2013 10:02:52 AM EDT > *To: *Dan Wilcox <[email protected]> > *Cc: *"[email protected] List" <[email protected]> > > > hello friends, > i'm very keen to try GEM/openGL on a Udoo board (http://udoo.org) which > DOES support OpenGL. > if anyone is up for trying it i can provide you with a board to try on. > should be a load of fun :) > > ali > > > -------- > Dan Wilcox > @danomatika > danomatika.com > robotcowboy.com > > > > > >
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