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#X obj 19 130 spigot;
#X obj 100 130 spigot;
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#X text 171 178 @outer does the same two-input operation between every
possible pair of the left-side grid and the right side grid. @inner
treats both input grids like @fold does \, then does a @outer on the
other dimensions \, such that every two-input operation is like a @fold.
this is a very powerful operation that can be used to do rotations
\, rgb->yuv \, color conversions \, etc.;
#X text 88 40 select pattern;
#X text 17 296 combine channelless picture with gamma factors (r \,
g \, b);
#X obj 19 89 until;
#X msg 19 68 128;
#X obj 60 89 float 1;
#X obj 115 89 + 1;
#X obj 171 90 until;
#X obj 212 90 float 1;
#X obj 267 90 + 1;
#X msg 171 69 4;
#X text 665 16 gridflow;
#X text 8 328 see also:;
#X obj 19 277 @out window;
#X text 18 10 #outer;
#X obj 129 333 @join;
#X obj 171 333 #finished;
#X obj 76 333 #scan +;
#X obj 241 333 #cast;
#X obj 283 333 #ravel;
#X obj 331 333 #grade;
#X obj 380 333 #perspective;
#X obj 171 111 #import (3);
#X obj 171 132 # * 128;
#X obj 19 109 #import (128);
#X obj 19 162 #outer +;
#X obj 100 161 #outer ^;
#X obj 100 181 # * 2;
#X obj 19 255 #outer gamma;
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