Claude Heiland-Allen wrote:
Jack wrote:
About [pix_share_read] and [pix_share_write]. Is there a method using
this two objects to share a picture that come from a
[gemframebuffer] ? I think is not possible. Am I wrong ?As far as I know (correct me if I'm wrong!), [gemframebuffer] stores images in GPU memory, you need to get it back to CPU memory as a pix, using eg [pix_snap], but that only snaps what is currently displayed (not from a framebuffer) (again correct me if I'm wrong).
you mean, like that?
And in my experience with oldish AGP graphics cards, GPU->CPU image copying is rather slow. PCIe may be better, I don't know.
to my knowledge, this is correct.
fmgadsr IOhannes
#N canvas 507 232 742 523 10; #X msg 65 67 create , 1; #X obj 82 176 gemhead 20; #X obj 82 200 gemframebuffer; #X msg 179 171 dimen 256 256; #X obj 114 310 rotateXYZ; #X obj 114 355 teapot; #X obj 82 246 t a a b; #X obj 137 272 i; #X obj 170 271 + 1; #X obj 200 270 % 360; #X obj 81 383 t a b; #X msg 129 383 snap; #X obj 80 442 t a b; #X msg 135 443 1; #X obj 80 467 pix_buffer_write $0-framebuffer; #X obj 410 202 gemhead 30; #X obj 410 246 t a b; #X msg 465 247 1; #X obj 410 271 pix_buffer_read $0-framebuffer; #X obj 410 351 pix_texture; #X obj 410 416 square 3; #X obj 65 112 gemwin; #X obj 340 90 pix_buffer $0-framebuffer 2; #X obj 82 223 translateXYZ 0 0 -4; #X obj 81 418 pix_snap 0 0 256 256; #X obj 562 182 gemhead 5; #X obj 569 209 world_light; #X msg 129 100 lighting 1; #X obj 114 332 color 1 0 1; #X floatatom 173 292 5 0 0 0 - - -; #X obj 410 310 pix_aging; #X obj 410 393 rotateXYZ; #X floatatom 445 373 5 0 0 0 - - -; #X connect 0 0 21 0; #X connect 1 0 2 0; #X connect 2 0 23 0; #X connect 3 0 2 0; #X connect 4 0 28 0; #X connect 6 0 10 0; #X connect 6 1 4 0; #X connect 6 2 7 0; #X connect 7 0 8 0; #X connect 7 0 4 1; #X connect 7 0 4 2; #X connect 8 0 9 0; #X connect 9 0 7 1; #X connect 10 0 24 0; #X connect 10 1 11 0; #X connect 11 0 24 0; #X connect 12 0 14 0; #X connect 12 1 13 0; #X connect 13 0 14 1; #X connect 15 0 16 0; #X connect 16 0 18 0; #X connect 16 1 17 0; #X connect 17 0 18 1; #X connect 18 0 30 0; #X connect 19 0 31 0; #X connect 23 0 6 0; #X connect 24 0 12 0; #X connect 25 0 26 0; #X connect 27 0 21 0; #X connect 28 0 5 0; #X connect 29 0 4 3; #X connect 30 0 19 0; #X connect 31 0 20 0; #X connect 32 0 31 2;