Justin Yang

I've posted this problem a couple times but am still struggling with 

it. I am trying again to see if anyone could provide some insight. I 

am just trying to animate a straight line like a cursor in jitter, but 

for some reason I cannot get the animation smooth it is always jittery. 

I've also tried this with LCD and got the same results. Could it be 

something to do with my CPU set up? I have a 17" 1.5ghz powerbook with 

2gb ram. Below is the patch that has two different modes one is an 

audio rate animator and the other just using the line object. I would 

really appreciate some help with this one as it is a pretty fundamental 

Hi,
I've posted this problem a couple times but am still struggling with 
it.  I am trying again to see if anyone could provide some insight.  I 
am just trying to animate a straight line like a cursor in jitter, but 
for some reason I cannot get the animation smooth it is always jittery. 
  I've also tried this with LCD and got the same results.  Could it be 
something to do with my CPU set up? I have a 17" 1.5ghz powerbook with 
2gb ram.   Below is the patch that has two different modes one is an 
audio rate animator and the other just using the line object.  I would 
really appreciate some help with this one as it is a pretty fundamental 
thing for a lot of my current work.

problems-with-basic-animation-in-jitter

it seems that for these simple animations you need a higher framerate to make it look smooth. Only from 85 frames/sec did it look ok for me. (maybe this has to do with interference with the refresh frequency of my/your (non tft/lcd) monitor?)

I played a bit with your patch and the first thing I did was to extend your audio chain so that the actual snapshot is almost the last thing to do (I think it helped a bit) and that you don't have two clocks possible interfering (your qmetro and the snapshot object).

also try if turning on overdrive makes any difference on your system

what is the max framerate you get btw? (I added an object for that)

I deleted some things in the patch for clarity (not that yours wasn't clear, you even made these highlight txts!)

anyway, 
I played a bit with your patch and the first thing I did was to extend your audio chain so that the actual snapshot is almost the last thing to do (I think it helped a bit) and that you don't have two clocks possible interfering (your qmetro and the snapshot object).

Try my code below.
I deleted some things in the patch for clarity (not that yours wasn't clear, you even made these highlight txts!)

This is better for the Jitter forum, but if you search the jitter 

archives, you should see some discussion of using cpuclock or the 

date object to use "walltime" to drive realtime animation under 

varying framerates rather than line, or counter.

https://cycling74.com/forums/index.php?t=msg&goto=66285#msg_66312

This is better for the Jitter forum, but if you search the jitter  
archives, you should see some discussion of using cpuclock or the  
date object to use "walltime" to drive realtime animation under  
varying framerates rather than line, or counter.

For example:
https://cycling74.com/forums/index.php?t=msg&goto=66285#msg_66312

recipe 31 of the jitter recipe book is quite useful for smooth animations

good tip thanks, 
recipe 31 of the jitter recipe book is quite useful for smooth animations


This was a great help, thanks. Your version is certainly better. I'm 

wondering if I can get it even smoother. For some reason my frame rate 

seems to be topped out at 60fps. Turning on the overdrive makes it 

Hi Timo,
This was a great help, thanks.  Your version is certainly better.  I'm 
wondering if I can get it even smoother.  For some reason my frame rate 
seems to be topped out at 60fps.  Turning on the overdrive makes it 
worse.
Thanks

Problems with basic animation in Jitter