[PD] GEM / pix objects : limiting colours

[Sciss]

p.s. [saturate 1( and [saturate 0( _do_ work with [pix_gain], however  
not with [pix_offset], so maybe you could just copy the behaviour  
from pix_gain directly to pix_offset?

Am 18.03.2007 um 21:54 schrieb Sciss:

> i managed to build GEM from the CVS, but the problem is same as  
> before (see attached image : the dark blue portion in the top-left  
> should be 100% white) ... i checked on PPC, there it looks good  
> (also looks good with the previous GEM version)
>
> ciao, -sciss-
>
> Am 12.03.2007 um 11:15 schrieb IOhannes m zmoelnig:
>
>> Sciss wrote:
>>> ok, but let me know if there's any kind of work around ... i guess
>>> internally everything is int8 not float32? because if float32 (-- i
>>> don't want to degrade the bit-resolution... --), i could do pix_gain
>>> 0.5 before the colourization, then afterwards a pix_gain 2.0 with
>>> saturation ...
>>
>>
>> right, gem handles colors as 8bit integer values, so you are out  
>> of luck
>> here.
>>
>> however, i just added the changes for saturated maths in  
>> [pix_offset] to
>> the CVS, so check it out recompile and report whether it works as  
>> expected.
>>
>> mfga.-sdr
>> IOhannes
>
> <colourwrapping.png>