Ian Smith-Heisters wrote:
its input and you've essentially got a feedback loop. I don't think you can do this in GEM though.
i am happy to inform you, that this is wrong ;-)
for several years there is an object [pix_snapshot] which will capture the current rendering-buffer into pix-space (so you can edit it with various [pix_-objects)
since this is quite inefficient (the client-server model of openGL is not optimized for storing back the render-buffer (on the server) into client-memory) there is (for several months now) a [pix_snap2tex] object that allows capture of the current render-buffer into a texture (since this takes place entirely on the server it is fast)
the example of ben bogart that was using this technique is below.
mfg.a.sdr IOhannes
#N canvas 610 316 525 271 10; #X obj 365 135 pix_texture; #X msg 458 64 snap; #X obj 365 40 render_trigger; #X obj 365 16 gemhead 15; #X obj 388 64 gemhead 5; #X obj 365 112 pix_snap 0 0 512 512; #X obj 174 22 gemhead 10; #X obj 174 84 scaleXYZ 6 0.1 6; #X obj 190 53 hsl 128 15 0.02 1.53 0 0 empty empty empty -2 -6 0 8 -262144 -1 -1 2600 1; #X obj 174 107 cube 0.34; #X obj 365 228 sphere 3.64; #X msg 437 208 50; #X obj 365 188 rotateXYZ; #X obj 379 165 hsl 128 15 0 34 0 0 empty empty empty -2 -6 0 8 -262144 -1 -1 12700 1; #X obj 17 122 gemwin 60; #N canvas 525 586 276 170 init 0; #X obj 65 128 outlet; #X obj 59 25 loadbang; #X msg 94 69 dimen 512 512; #X msg 14 68 lighting 1; #X connect 1 0 2 0; #X connect 1 0 3 0; #X connect 2 0 0 0; #X connect 3 0 0 0; #X restore 50 80 pd init; #X obj 175 185 gemhead 70; #X obj 175 231 light; #X msg 17 19 create , 1; #X msg 37 49 0 , destroy; #X obj 175 208 translateXYZ 0 0 4; #X obj 437 188 loadbang; #X connect 0 0 12 0; #X connect 1 0 5 0; #X connect 2 0 5 0; #X connect 2 2 1 0; #X connect 3 0 2 0; #X connect 4 0 5 0; #X connect 5 0 0 0; #X connect 6 0 7 0; #X connect 7 0 9 0; #X connect 8 0 7 2; #X connect 11 0 10 2; #X connect 12 0 10 0; #X connect 13 0 12 2; #X connect 15 0 14 0; #X connect 16 0 20 0; #X connect 18 0 14 0; #X connect 19 0 14 0; #X connect 20 0 17 0; #X connect 21 0 11 0;