[PD] GEM two channel video key

Tue Aug 7 02:28:34 CEST 2007

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
 - - -;
#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;

      Be a better Heartthrob. Get better relationship answers from someone who knows.
Yahoo! Answers - Check it out. 

____________________________________________________________________________________
Building a website is a piece of cake. Yahoo! Small Business gives you all the tools to get online.
http://smallbusiness.yahoo.com/webhosting 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20070806/6b663edf/attachment.htm>