[PD] [pix_data] - convert rgb values to pd canvas format

[Roman Haefeli]

On Mon, 2016-01-11 at 23:07 +0100, IOhannes m zmölnig wrote:
> On 01/11/2016 10:54 PM, Olivier Baudu wrote:
> >  I've lost a of of time to
> > convert RGB output from [pix_data] for them to work with canevas...
> 
> for what it is worth: all the help-patches for the iemguis include a
> subpatch that will turn a set of RGB values (0..255) into that weird
> color-format.

This is true for the color format used in the 'color' method of the
iemguis. And this method also allows to create pure white. The original
poster asked about "the other" color format used in iemguis, the one
based on 6-bit per channel used as creation argument. He tried the
approach from the help-file, but got weird results. 

Roman
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