[GEM-dev] gem color bug

[Jack]

Le 29 oct. 07 à 15:53, marius schebella a écrit :

> hi IOhannes, thanks for your answer.
> ok, I obviously tried two different things, one was to color my  
> images,
> and the other one was to make parts transparent.
> I uploaded two new pics.
> http://www.parasitaere-kapazitaeten.net/Pd/Gem_bug
> I did not know that for coloring I do not need pix_alpha. sorry. so  
> with
> pix_rgba and color I can color all white pixels. nice.
> otoh, the real bug seems to be in pix_alpha. it does not replace black
> pixels with alpha, but with blue... (?)
> marius.
>
I have tried today on MacPro MacOSX.4.10 with last Pd-extended and  
the bug is still there.
When i want that black pixels on my video become transparent, they  
become blue.
I also think that the bug seems to be in [pix_alpha], only on  
MacIntel, no problem on G4 !

Jack

> IOhannes m zmoelnig wrote:
>> marius schebella wrote:
>>> hi,
>>> sorry for crossposting this on pd-list and gem-dev.
>>> there is a bug in the current cvs version of gem, that was already
>>> solved in summer, but now it seems back...
>>> I uploaded screenshots from the gem alpha color bug here:
>>> http://www.parasitaere-kapazitaeten.net/Pd/Gem_bug!
>>> what can I do to fix that?
>>> marius.
>>>
>>
>> it seems to be a problem with blue and alpha being flipped.
>> how does it look like when you put something behind the square (e.g.
>> colorize the background with [color 1 1 1( to [gemwin])
>>
>> what happens if you change the alpha value of the [colorRGB] object?
>>
>> i don't have a macintel to test.
>>
>> fmga.sdr
>> IOhannes
>>
>
>
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