I'm trying to create a 2 channel video key in GEM. I would like to use a moving geo (circle) as the source of the key and 2 movie clips for each side of the key (or one clip processed differently). Searching the archive I've gathered that I need to use pix_snap2tex to get the geo to be seen as a pix. Then I should be able to use pix_compare, pix_chroma_key, pix_mask, etc. However, I can't get any of these objects to work after using pix_snap2tex. Any suggestions would be appreciated. Below is one of my attempts.
Drew
#N canvas 640 2 644 546 10; #X obj 39 153 t b; #X msg 39 173 snap; #X msg 52 205 0 0; #X obj 31 132 gemhead 10; #X obj 329 43 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1 ; #X obj 329 139 translateXYZ; #X floatatom 395 120 5 0 0 0
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#X obj 329 159 circle; #X msg 117 205 512 512; #X obj 31 368 pix_alpha; #X obj 19 34 gemwin; #X msg 19 10 create , 1; #X msg 85 10 destroy; #X obj 150 11 loadbang; #X obj 370 204 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1; #X floatatom 410 310 5 0 10000 1 frame# - -; #X msg 406 289 auto $1; #X obj 408 270 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 1 1; #X obj 419 349 bng 15 250 50 0 empty empty end_reached 20 7 0 10 -262144 -1 -1; #X obj 433 328 t f; #X obj 370 384 pix_motionblur; #X obj 370 408 pix_texture; #X floatatom 475 371 5 0 1 0 - - -; #X msg 78 36 dimen 512 512; #X obj 31 451 pix_texture; #X obj 31 230 pix_snap2tex; #X obj 31 112 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0 1; #X obj 31 473 square 4; #X obj 329 62 gemhead 5; #X obj 370 226 gemhead 2; #X msg 494 390 0.9; #X obj 31 431 pix_compare; #X msg 47 409 direction $1; #X obj 47 391 tgl 15 1 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1 ; #X msg 56 303 1; #X msg 94 303 0.8; #X msg 74 349 0; #X obj 31 269 alpha; #X msg 105 348 1; #X msg 378 249 open homer.avi; #X obj 370 328 pix_movie; #X obj 370 429 square 4; #X obj 31 327 colorRGB 1 0.8 1; #X msg 82 205 -5 0; #X obj 394 39 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 1 1; #X obj 395 78 counter -20 20 3; #X obj 395 99 / 10; #X obj 394 57 metro 50; #X obj 206 204 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1; #X floatatom 246 310 5 0 10000 1 frame# - -; #X msg 242 289 auto $1; #X obj 244 270 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 1 1; #X obj 255 349 bng 15 250 50 0 empty empty end_reached 20 7 0 10 -262144 -1 -1; #X obj 269 328 t f; #X msg 214 249 open homer.avi; #X obj 206 328 pix_movie; #X obj 206 226 gemhead 10; #X connect 0 0 1 0; #X connect 1 0 25 0; #X connect 2 0 25 1; #X connect 3 0 0 0; #X connect 3 0 25 0; #X connect 4 0 28 0; #X connect 5 0 7 0; #X connect 6 0 5 1; #X connect 8 0 25 2; #X connect 9 0 31 0; #X connect 11 0 10 0; #X connect 12 0 10 0; #X connect 13 0 23 0; #X connect 13 0 8 0; #X connect 13 0 43 0; #X connect 13 0 30 0; #X connect 13 0 17 0; #X connect 13 0 39 0; #X connect 13 0 44 0; #X connect 13 0 54 0; #X connect 13 0 51 0; #X connect 14 0 29 0; #X connect 15 0 40 1; #X connect 16 0 40 0; #X connect 17 0 16 0; #X connect 19 0 40 1; #X connect 20 0 21 0; #X connect 21 0 41 0; #X connect 22 0 20 1; #X connect 23 0 10 0; #X connect 24 0 27 0; #X connect 25 0 37 0; #X connect 26 0 3 0; #X connect 28 0 5 0; #X connect 29 0 40 0; #X connect 30 0 20 1; #X connect 31 0 24 0; #X connect 32 0 31 0; #X connect 33 0 32 0; #X connect 34 0 42 1; #X connect 34 0 42 2; #X connect 34 0 42 3; #X connect 35 0 42 2; #X connect 36 0 9 2; #X connect 37 0 42 0; #X connect 38 0 9 2; #X connect 39 0 40 0; #X connect 40 0 20 0; #X connect 40 2 18 0; #X connect 40 2 19 0; #X connect 42 0 9 0; #X connect 43 0 25 1; #X connect 44 0 47 0; #X connect 45 0 46 0; #X connect 46 0 6 0; #X connect 47 0 45 0; #X connect 48 0 56 0; #X connect 49 0 55 1; #X connect 50 0 55 0; #X connect 51 0 50 0; #X connect 53 0 55 1; #X connect 54 0 55 0; #X connect 55 0 31 1; #X connect 55 2 52 0; #X connect 55 2 53 0; #X connect 56 0 55 0;
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