[GEM-dev] gemwin

[Cyrille Henry]

and i forget to say that i had to change in gemdefaultwindow : gemglxwindow to Gem/gemglxwindow

c

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.*
>
> - 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.
>
> - 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.
> - 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.
> - gemmouse work, but not gemkeyname
>
> thanks for all good work
> cheers
> c
>
> Le 20/08/2014 10:07, IOhannes m zmoelnig a écrit :
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>> 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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