Raspberry Pi Forums

dch26

@ hugmeir you interested in opengles 1 or 2? i didnt get that far with 2....just the bare framework...as i said i didnt have time to learn the shader langauge. i prefer 1 myself - but the pi (and presumably most android devices) are not powerful enough to do everything you want on the CPU side.obvio...

dch26

ok, i did this following the link above....and i got it working (sort of). using a powered USB hub, and my E392 connected to that. once i eventually got all the connection strings sorted etc i could connect to the internet. i set up the pi as a firewall and dhcp server....and my other computers on m...

dch26

i also have a huawei e392 my device id is the same 12d1:151a this modem seems to need a driver "qmi_wwan" the latest version i could find (source) was at: http://lxr.free-electrons.com/source/drivers/net/usb/qmi_wwan.c and this even mentions the e392 specifically need to get this compiled and tested...

dch26

bill

have you forgotten your shebang as the first line of the perl script, to point to the perl executable?

dch

dch26

play files are available to those that are interested.
while its still in early stages i'm not going to widely publish it.

send me a private message with your ideas and tell me how you can help test

dch

dch26

success with opengles 2.0, perl & pi

if you are interested, please see:

http://www.raspberrypi.org/phpBB3/viewt ... 43#p121543

cheers
dch

dch26

raspberry pi, perl, opengles 2.0 - yes 2.0!!! vertex & fragment shaders to draw hello triangle perl-opengles2-hello-triangle.jpg took a while to get going - but i was inspired after my opengles 1.x success. my problem is, i dont (yet) speak shader language - so the triangle is my limit for now hope ...

dch26

i guess this screenshot speaks for itself: tex-fonts.jpg but, just in case it doesnt: perl, raspberry pi, opengl es 1.x - text being printed by textured fonts. font is perfectly proportional, spaced & baselined :) 18fps - not too bad, but....optimisation required i think! with opengl es 1.x we will ...

dch26

perl pi opengl

textures now loading from RAW or TGA (with or without alpha channel).
others could be loaded on request - but thats all i need for now.

lighting is working too

i will try to setup a nice lit model & post a screenshot a bit later

dch

dch26

i have noticed no bugs in the raspbian distro when playing with opengl es. i am using full screen 1920x1200 and texturing works well. admittedly, my textures are not super hi res. i find that anything higher than 512x512 takes an eternity to load. see my post at: http://www.raspberrypi.org/phpBB3/vi...

dch26

and i have got my ".obj" (wavefront) 3d object model loader working for perl pi opengl. cobra1.jpg still need to tweak a few bits - but the basics are there - it was a straight rip from my desktop gl app. if you are wondering about the spuriously placed car-parts - then i can tell you they were wron...

dch26

hi

screenshot evidence!
you will notice that i have got texturing working too

: perl pi opengl textured screenshot; screener.jpg (18.43 KiB) Viewed 8501 times

screenshot is captured in targa (.tga) format.
(converted to jpg for forum upload)

textures are loading from .raw files right now, but
i will load them from .tga next

dch

dch26

Ok, good news!
I have written the perl code to grab screenshots.
It works, but its slow (because it uses the glReadPixels function)

But its perfect for grabbing images to show you guys on the forum

I will post some later.....

dch

dch26

thx for your reply clickykbd, should have mentioned: Linux pisces 3.1.9+ #138 PREEMPT Tue Jun 26 16:27:52 BST 2012 armv6l (fully up to date) when i start X, i do get erratic behaviour from my usb devices....keyboard in particular. it seems to repeat the last key i pressed (infinitely) - sometimes! (...

dch26

i installed gpm: apt-get install gpm started it: /etc/init.d/gpm start and it works lovely in the console physically attached to the pi. i can move a mouse cursor around, cut n paste text, etc. :) however......when i launch an SSH session now, it is incredibly slow. unusably so. if i kill gpm: /etc/...

dch26

thx davesedar,

however, "scrot" only works in X as far as i can tell.

X isnt 3d accelerated - so we're not playing in there just now

need a screenshot of display 0 - which is the one physically connected to the device, and not an SSH session or whatever

ta

dch

dch26

now have keyboard input to control movements. also.......multiple viewports (aka split screen) so i can see my object rotate from the front & above at the same time......dont know why really......it was just an artifact of doing the code which controls the GL window position & size - while maintaini...

dch26

if you are interested in this thread, please see:

http://www.raspberrypi.org/phpBB3/viewt ... 37#p115737

cheers
dch

dch26

announcement!! i have ACCELERATED 3D OPENGL ES 1.x running on the Pi using PERL enabled by a whole series of perl module shared library wrappers that i have written over the last few days. LOTS of tidying up to do, more functions to include, making more efficient, etc but i can confirm, that i have ...

dch26

clearly we all have a language of choice! mine IS perl. for me, & people like me - we need to make the perl implementation on the Pi as complete as possible. opengl is something i am very interested in and it is available on the Pi for C, Python & ruby. i have now started work on the C shared librar...

dch26

have decided to bite the bullet and get on with it. i am creating my own wrapper libraries. i have done the "bcm_host" and am halfway thru the "egl". checking the functions work through a test perl script as i go. will keep you posted. this may take a little time & be an iterative process because my...

dch26

Hi all, just another Perl hacker here - just got my pi and joined the forum. just posted to the graphics->opengles with this: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=68&t=9752 which, actually, you kind folk may be more capable of helping me with rather than the specifically graphics intere...

dch26

Hi all, i have done a mammoth amount of forum searching and googling before posting this....because i hate asking "the same old questions..." I sit here, armed with a Raspberry Pi, running Raspian OS. I am an experienced Perl programmer and am proficient using it with desktop OpenGL. made the obviou...

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