[GEM-dev] Different Alpha Blending Methods in Alpha Object

[Jack]

Le 22/11/2012 13:45, Cyrille Henry a écrit :
>
>
> Le 21/11/2012 15:02, Jack a écrit :
>> Le 20/11/2012 18:52, Santi a écrit :
>>> Hello,
>>>
>>> i don't know if this is the right place to write, sorry if don't.
>>>
>>> I'm working in a project with PD/Gem and i need more blending
>>> methods than the original Alpha object has. I've modified slightliy
>>> the file alpha.cpp (see atachment) and recompiled Gem. Simply i've
>>> add the different OpenGL blending mehods to the switch in the
>>> function funmess(). Some are working in mi system (Debian Wheezy),
>>> others are the same output than GL_ONE. I like specially
>>> GL_ONE_MINUS_SRC_COLOR, it doesn't saturate the bright pixels like
>>> GL_ONE_MINUS_SRC_ALPHA does.
>>>
>>> My question: Is there any reason to not include different alpha
>>> blending methods? the modification i've made is very simple and
>>> obvious, so i'm thinking about why not had made before... do i have
>>> lost something?
>>>
>>> Regards and sorry for my english...
>>>
>>> Santi Noreña
>>>
>>>
>>> _______________________________________________
>>> GEM-dev mailing list
>>> GEM-dev at iem.at
>>> http://lists.puredata.info/listinfo/gem-dev
>>
>> Hello,
>>
>> You can use the object [GEMglBlendFunc].
> yes, but i don't see any reason not to include it in the alpha object.

Because it still exists in the [GEMglBlendFunc] :)
Seriously, as Chris says it's better to use shaders now, it's more flexible.
++

Jack


> cheers
> c
>
>> ++
>>
>> Jack
>>
>>
>>
>>
>> _______________________________________________
>> GEM-dev mailing list
>> GEM-dev at iem.at
>> http://lists.puredata.info/listinfo/gem-dev
>>
>
> _______________________________________________
> GEM-dev mailing list
> GEM-dev at iem.at
> http://lists.puredata.info/listinfo/gem-dev