Drawing an animated circle

Viljami Lehtonen's icon

Hi,
I have been using max for years but jitter is very new to me. I want to draw circles which will expand for one second and then fade away. And i would like them to have 'shadow' or 'ghosting' effect while they expand. Which would be the best approach to get start with? Thanks!

Christopher Dobrian's icon

Here's an example with jit.lcd and jit.slide that might give you some ideas.

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phiol's icon

Hi viljami

here are 3 ways of doing it in gl

hope this gets your started :-)

version 1

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Max Patch
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version 2 (tweaking the feedback chain order to create bloom feedback)

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version 3 (using feedback and blur for trailing , gl.pix to create an 0 value alpha channel to [alphablend] to create an OVER compositeof the original source and jit.gl.pix again to create a color mixer)

Rob Ramirez's icon

definitely check out the jit.mo package for this:

Max Patch
Copy patch and select New From Clipboard in Max.

phiol's icon

whoa !! when jit.mo and who did this package !
so so practical

thanks rob

Jean-Francois Charles's icon

Great indeed, thanks!

Rob Ramirez's icon

def check it out and let us know how you get on!

Viljami Lehtonen's icon

Hey guys - thanks for the replies! I supposed I would get an email when someone replies but apparently that didn't happen. Sorry for the delay. I will check those examples you sent and get back to you! Thanks a lot!

Viljami Lehtonen's icon

Yeah, jit.mo is excatly what i need here! Thanks Rob!! And thanks also to Phiol and Christopher for your examples - they might come handy at some point!
I'll share my patch when i get it finished!