Forums > Jitter

lissajous fun

September 19, 2010 | 10:12 pm

if anyone knows how to get rid of the occasional tearing effect, please let me know,

cheers,

oli


September 20, 2010 | 8:06 am

Sweet – and quite possibly seizure-inducing!
Always been a sucker for Lissajous figures; there’s something reassuringly old skool about them,
cheers
Roger


September 20, 2010 | 11:51 am

Hello Oli, nice work!
This looks like the same tearing problem i’m encountering at the moment with my oscilloscope example:
http://cycling74.com/forums/topic.php?id=28525
Would be great to see a solution for this problem…
Best Lev


September 20, 2010 | 12:02 pm

hi Oli, i cant seem to see any tearing here… can u post a screenshot maybe? nice patch BTW

@l3vidius, i think your issue is separate as oli is using openGL to draw the lissajous curves. your oscilloscope draws directly to CHAR matrix. i think you need to slow down the clear bang so it only does it once it has got all the way across the x dim of the char matrix.

j


September 20, 2010 | 1:37 pm

it’s like sometimes jit.catch~ misses some samples, resulting in the curve not joining up… it’s a bit hard to get a screenshot unfortunately.

also if anyone has some ideas about how to make this look more like an analogue oscilloscope (shaders?) i’d be interested to hear

oli


September 20, 2010 | 2:34 pm

haha yeah, i love the look of old scopes… shaders are probably the first place to go, unless u go back to CHAR.
maybe use a combination of shaders, with some modulations to emulate light intensity changes and colour displacement…

vade has some v nice shaders also

i’d love to have a crack at it, but im well busy at the moment! gimme couple of weeks and i should have more free time…


Viewing 6 posts - 1 through 6 (of 6 total)