[GEM-dev] gemwin

Jack jack at rybn.org
Wed Aug 20 16:40:26 CEST 2014


OK, now i work with the repository : git://git.code.sf.net/p/pd-gem/gem
<http://git.code.sf.net/p/pd-gem/gem>

No more [gemwin] object but [gemwin] abstraction. => need to add path to
.../Gem/abstractions/ or create [abstractions/gemwin].
Problem with [glsl_program] => pd crash when i close the patch or if i
try to re-create the [glsl_program] object (test.pd patch attached).
No more [gem_state 0/1( message from [gemhead] => problem with patch
using it to initialize objects (for exemple :
Gem/examples/10.glsl/09.vertex_texture_fetching.pd need mouse to open
shaders).
Still crash with libvlc => need to remove or change name of gem_videoVLC.so.
[gemkeyname] and [gemkeyboard] doesn't work => need abstractions
(abstractions attached).
++

Jack


Le 20/08/2014 15:44, Jack a écrit :
> Le 20/08/2014 14:58, Antoine Villeret a écrit :
>> 2014-08-20 13:52 GMT+02:00 Jack <jack at rybn.org <mailto:jack at rybn.org>>:
>>
>>     Just try with Gem from
git://pd-gem.git.sourceforge.net/gitroot/pd-gem/Gem
<http://pd-gem.git.sourceforge.net/gitroot/pd-gem/Gem>.
>>
>>
>> this is the (too) old repo, up-to-date code is here :
git://git.code.sf.net/p/pd-gem/gem <http://git.code.sf.net/p/pd-gem/gem>
>> please try with that
>
> OK, i remove it and change adress.
> Thanx.
> ++
>
> Jack
>
>
>>
>> +
>> a
>>
>>
>>     [glsl_program] works fine.
>>     Gem/examples/10.glsl/09 works fine. (get 0/1 from message
gem_state so vertex and fragment shaders are loaded)
>>
>>     But i still get pd crash with libvlc.
>>
>>     [gemkeyname] and [gemkeyboard] work fine with object [gemwin] but
not with abstraction [abstractions/gemwin].
>>
>>     ++
>>
>>     Jack
>>
>>
>>
>>
>>     Le 20/08/2014 13:39, Jack a écrit :
>>>     Le 20/08/2014 11:07, Cyrille Henry a écrit :
>>>     > Hello,
>>>     >
>>>     > thanks for the answer, sorry i missed that.
>>>     > things work lot's better now!!!
>>>     >
>>>     > i still have few problem :
>>>     > - when starting pd in the Gem/ folder, it start correctlly.
>>>     >  when starting pd in an other folder, pd segfault when loading
gem_videoVLC plugin
>>>     > so, i just remove it : sudo rm
/usr/local/lib/pd/extra/Gem/gem_videoVLC.*
>>>
>>>     Yep, there is conflict between libvlc and other libraries.
>>>
>>>     >
>>>     > - i did not try all example, but most work. i do however have
some problem with Gem/examples/10.glsl/05.multitexture_bis.pd
>>>     >     if i open and close this patch, pd segfault (even without
opening a rendering window). The patch did work.
>>>
>>>     The problem seems to be [glsl_program]. An exemple patch is
attached ;)
>>>
>>>     >
>>>     > - some other shader example did not render anything unless i
configure optimus to use the nvidia card. It's not a gem fault, just the
intel HD and it's driver.
>>>
>>>     Yep.
>>>     But I also notice [gemframebuffer] with IntelHD doesn't like
[format RGB32(.
>>>     For exemple, in Gem/examples/10.glsl/09... it is possible to
change [format RGB32( to [format RGB( to have something working on
IntelHD. Maybe it is possible to add a comment in the patch (or add a
new message) to explain how to make this patch working on IntelHD ?
>>>
>>>     > - gemwin  use to send 1 / 0 when start / stop rendering. i
sometime use this to load shader, like in example
Gem/examples/10.glsl/09... In this example, i have to manually load the
shader.
>>>
>>>     I just create a patch with :
>>>
>>>     [gemhead]
>>>     |
>>>     [route gem_state]
>>>     |
>>>     [print]
>>>
>>>     and there is no more 0/1 in pd console when you create or
destroy gemwin.
>>>     On my side, i only use [loadbang] to load
vertex/geometry/fragment shaders.
>>>
>>>     > - gemmouse work, but not gemkeyname
>>>
>>>     [gemkeyboard] doesn't work too.
>>>     ++
>>>
>>>     Jack
>>>
>>>     PS : i just notice that i am working with Gem from
http://github.com/umlaeute/Gem.
>>>     I will try with Gem from
git://pd-gem.git.sourceforge.net/gitroot/pd-gem/Gem
<http://pd-gem.git.sourceforge.net/gitroot/pd-gem/Gem> ...
>>>
>>>
>>>     >
>>>     > thanks for all good work
>>>     > cheers
>>>     > c
>>>     >
>>>     > Le 20/08/2014 10:07, IOhannes m zmoelnig a écrit :
>>>>     On 2014-08-19 18:11, Cyrille Henry wrote:
>>>>     >>> hello,
>>>>     >>>
>>>>     >>> i just tested the current Gem git. (i'm still using on
ubuntu linux
>>>>     >>> 14.04, intel hd4000)
>>>>     >>>
>>>>     >>> gemwin did not create. Gem/gemdefaultwindow can be created.
it use
>>>>     >>> gemglxwindow. (i have both gemglutwindow.pd_linux and
>>>>     >>> gemglxwindow.pd_linux in /usr/local/lib/pd/extra/Gem)
>>>>     >>>
>>>>     >>> sending the create message on this object did create an empty
>>>>     >>> window. but sending "1" did not enable rendering, i only get :
>>>>     >>> gemglxwindow: no method for 'float'
>>>>     >>>
>>>>     >>> so : why did gemdefaultwindow is not named gemwin?
>>>>
>>>>     that's by design.
>>>>
>>>>     >>> (sould i just make a symlink?)
>>>>
>>>>     no. [gemwin] and [gem*window] are *not* the same.
>>>>
>>>>
>>>>     >>> more important : how can i enable rendering?
>>>>
>>>>
>>>>     the design is obviously different from what you expect.
>>>>
>>>>     [gemdefaultwindow] (or rather it's underlying implementations like
>>>>     [gemglxwindow] or [gemglutwindow]) is really just a very thin
wrapper
>>>>     around an openGL-context.
>>>>     all it can do is to create/destroy an openGL-context (aka
window), and
>>>>     make that context the "current" one (so any openGL commands are
>>>>     exectuted within this context).
>>>>
>>>>     it does a lot less than [gemwin], which handles viewpoints,
rendering,...
>>>>
>>>>     short overview:
>>>>
>>>>     starting with Gem-0.94 (that is: current git), [gemwin] is now an
>>>>     abstraction (found in abstractions/).
>>>>     internally it uses [gemdefaultwindow] to create/destroy/switch-to
>>>>     windows/contexts, which is just another abstraction that wraps the
>>>>     actual implementation (e.g. [gemglfw3window]), but you really
need the
>>>>     entire [gemwin] abstraction to use Gem as you used to.
>>>>
>>>>     apart from separating platform-independent code (as found in the
>>>>     [gemwin] abstraction) and platfrom-dependent code (the actual
>>>>     [gem*window] backend), this also allows the user to change the
>>>>     behaviour of [gemwin] without needing a compiler.
>>>>
>>>>     conclusion:
>>>>     add abstractions/ to your path, so you have a proper [gemwin].
>>>>
>>>>     fgmasdr
>>>>     IOhannes
>>>     >>
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