[jitter] [sharing] mutiple from particles

built this patch for a student, thought it might be a good  
illustration for some...

#P window setfont "Sans Serif" 9.;
#P window linecount 1;
#P comment 475 62 213 196617 joshua goldberg 2007;
#P window setfont Capitals 18.;
#P comment 475 40 213 131268626 donut-emitter;
#P window setfont "Sans Serif" 9.;
#P window linecount 2;
#P comment 492 602 147 196617 the particle system requires a feedback  
loop to work.;
#P window linecount 4;
#P comment 165 559 150 196617 position and scale all take 3  
parameters \, so 3 plane matrices are used to set these attributes in  
the gl.multiple;
#P comment 190 505 107 196617 the particles are drawing spheres \, so  
x \, y \, and z are the same.;
#P comment 211 422 107 196617 we do not need the second row once we  
branch out from the jit.p.shiva structure.;
#P window linecount 3;
#P comment 475 245 213 196617 in this example planes 2 \, 3 and 4 are  
x \, y and z position \, plane 5 is a constant for 'speed' \, and  
plane 6 is a constant for scale.;
#P comment 621 383 100 196617 changing this changes the particle  
'spread';
#P window linecount 1;
#P comment 38 661 393 196617 this gridshape is the prototype for all  
of the particles drawn by the jit.gl.multiple.;
#P flonum 621 427 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P window linecount 2;
#P newex 583 476 60 196617 jit.op @op * @val 1.04;
#P newex 400 477 61 196617 jit.op @op * @val 1.04;
#P window linecount 1;
#P newex 130 530 53 196617 jit.pack 3;
#P newex 42 524 53 196617 jit.pack 3;
#P window linecount 3;
#P newex 18 560 136 196617 jit.gl.multiple bork 2 @targetname teeny  
@glparams position scale;
#P window linecount 2;
#P newex 57 620 314 196617 jit.gl.gridshape bork @name teeny @shape  
sphere @color 1. 1. 1. 1. @dim 10 10 @lighting_enable 1 @automatic 0  
@smooth_shading 1;
#P window linecount 1;
#P newex 389 604 94 196617 jit.matrix blobbies;
#P newex 391 574 92 196617 jit.pack 7;
#P newex 477 486 64 196617 jit.op @op +;
#P newex 329 381 287 196617 jit.unpack 7;
#P newex 314 356 27 196617 t l l;
#P newex 314 330 346 196617 jit.p.shiva @init 0. -0.7 0 0.03 0.03  
@init_var 0.1 0 0.1 0.02 0.02 @mode 1;
#P newex 314 304 169 196617 jit.matrix blobbies 7 float32 100 2;
#P window linecount 7;
#P newex 34 303 140 196617 jit.gl.gridshape bork @shape torus @color  
1. 0. 0. 1. @scale 0.3 0.3 0.3 @lighting_enable 1 @position 0 -0.7 0  
@rotate 90 1 0 0 @automatic 0 @smooth_shading 1;
#P window linecount 1;
#P message 134 50 34 196617 reset;
#P newex 134 74 188 196617 jit.gl.handle bork @inherit_transform 1;
#P message 375 135 70 196617 fullscreen \$1;
#P toggle 375 115 15 0;
#P newex 375 92 38 196617 sel 27;
#P newex 375 70 40 196617 key;
#P number 91 41 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P user jit.fpsgui 31 178 60 196617 0;
#P newex 34 269 416 196617 t b b b b b b b b b b b b b b b b b b b;
#P newex 34 245 40 196617 r stuff;
#P toggle 31 47 15 0;
#P newex 128 127 40 196617 s stuff;
#P newex 31 153 201 196617 jit.gl.render bork @erase_color 0. 0. 0. 1.;
#P newex 31 98 58 196617 t b b erase;
#P newex 31 73 51 196617 qmetro 1;
#P newex 375 156 274 196617 jit.window bork @floating 1 @depthbuffer  
1 @fsmenubar 0;
#P window linecount 4;
#P comment 474 184 213 196617 planes 0 and 1 of the particle matrix  
are special and should not be touched. after that planes can be used  
however you want (if there is no jit.p.vishnu in the mix);
#P window linecount 1;
#P newex 102 478 105 196617 jit.unpack 7;
#P newex 102 446 100 196617 jit.split @splitdim 1;
#P comment 32 400 130 196617 this is the red torus base;
#P connect 30 0 29 0;
#P connect 9 0 5 0;
#P connect 5 0 6 0;
#P connect 6 2 7 0;
#P connect 6 0 7 0;
#P connect 18 0 7 0;
#P connect 7 0 12 0;
#P connect 10 0 11 0;
#P connect 11 0 20 0;
#P connect 2 2 30 0;
#P connect 2 3 30 1;
#P connect 13 0 5 1;
#P connect 2 4 30 2;
#P connect 23 0 1 0;
#P connect 1 0 2 0;
#P connect 6 1 8 0;
#P connect 2 6 31 0;
#P connect 19 0 18 0;
#P connect 31 0 29 1;
#P connect 2 6 31 1;
#P connect 2 6 31 2;
#P connect 11 15 21 0;
#P connect 21 0 22 0;
#P connect 22 0 23 0;
#P connect 23 1 24 0;
#P connect 14 0 15 0;
#P connect 15 0 16 0;
#P connect 16 0 17 0;
#P connect 17 0 4 0;
#P connect 26 0 27 0;
#P connect 24 0 26 0;
#P connect 24 2 32 0;
#P connect 24 1 26 1;
#P connect 32 0 26 2;
#P connect 25 0 26 3;
#P connect 33 0 26 4;
#P connect 34 0 32 1;
#P connect 24 5 26 5;
#P connect 24 6 26 6;
#P connect 24 3 25 0;
#P connect 24 5 25 1;
#P connect 24 4 33 0;
#P connect 34 0 33 1;
#P window clipboard copycount 44;