Performance Issues using Envelope Generators

[raha]

vanakaru, thanks so much for all that.

i've tried an external monitor, but it also does it on the small stage preview screen (when i click force stage preview) 

last project when i had the same problem, it did it whether it was through the projector, on the external monitor, or in the small stage preview on the iMac monitor. it always stutters in the exact same places...

my status window VPO: 0.0 and FPS: 30, but the Cycles fluctuate a lot between near 230 and 270....however after trying several times, i can't notice a pattern in whether they drop or skyrocket at the places where it jitters -- it's just constantly changing.

could that have something to do with it?

i've attached screen shots of my preferences....please let me know if you notice anything relevant!

thanks

[vanakaru]

I thought you may have Threaded Movie playback checked. Uncheck this and see if you get better results. If I remember right Picture player specially does not like it.

[raha]

tried.

unfortunately, still jumpy...

[vanakaru]

I really is puzzling. I have the same settings, same preferences and lesser mac?

Try this. You do not need to log in to download the zip(16.07mb). I put the Isadora patch and a picture file I was testing with in it.

http://www.mediafire.com/?r3x495zzw82614c

[raha]

if you change all the rate times to 10 seconds is it still as smooth?

[vanakaru]

Yes. Run it 20 sec if you like.

[raha]

mine's jumpy when i do 20 secs

[vanakaru]

The one thing I noticed when I tried to record a screen for you with iShowU HD. It started stutter just a bit because this app takes lotsa CPU. So I wonder if you have something running in background that competes with Isadora.

I am on 10.6.8\. i wonder if this makes difference. I have Lion installed on external drive(never got to use it) that I may give a try.

[Skulpture]

My Mac which is super old couldn't handle that patch you created @vanakru but I expected it with a 8000x8000 pixel image.

What are you playing the file off? An external HD if so is it USB/Firewire, etc?

[vanakaru]

I don't know if my mac classifies as super old as well, but I have just tried to play the same JPG off my main drive SSD and off 1tb HDD in optibay(PATA!!!). No difference, runs great.

[DusX]

I just tested the patch on my windows machine with a 1920x1920 image.
I tried a few different settings configs and can't get it to play smooth.
It is inconsistent as to when and how the stutters occur, but they are there.

running f24.