#N canvas 188 0 499 487 10;
#X msg 164 99 gemList;
#X msg 164 302 gemList;
#X text 169 16 part of GEM;
#X obj 164 217 pix_bitmask;
#X msg 200 152 mask;
#X msg 237 180 maskR maskB maskG;
#X text 151 73 mask out the pixels;
#X text 56 329 pix_bitmask uses a bit masking to change the pixels.
If a single mask is used \, the alpha mask is assumed to be 255 (or
\, pass everything).;
#X text 55 385 The mask is an unsigned char \, which means it can go
from 0-255 \, with 0 not passing any bits.;
#X text 54 432 You may need to use pix_gain either before or after
since low bit values will reduce the luminance of the pix.;
#X text 176 43 [pix_bitmask];
#X connect 0 0 3 0;
#X connect 3 0 1 0;
#X connect 4 0 3 1;
#X connect 5 0 3 2;
