Image sequence speed?

# 1 02-06-2010 , 04:48 AM

Registered User
Join Date: Oct 2008

Posts: 30

Hey all, basically ive got a simple image sequence with an repeating loop (using expressions)

file3.frameExtension += 1;
if (file3.frameExtension > 9)
file3.frameExtension =1;

I wanted to know how do i go about changing the speed of the loop? i found online an expression, but it doesnt quiet work.

file3.frameExtension= floor ((frame - 1) / 3) + 1;
if (file3.frameExtension > 9)
file3.frameExtension =1;

With this expression, it does slow down the loop but it just stops.

Any help would be great

Thanks.

Last edited by pixel_poison; 02-06-2010 at 05:26 AM.

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# 2 05-06-2010 , 06:02 PM

Technical Director
Join Date: Feb 2004

Posts: 2,988

You can use a modulo operator to do this.

For example:

Code:

int $speed = 4;

if ((frame % $speed) == 0)
    file3.frameExtension++;

if (file3.frameExtension > 9)
    file3.frameExtension =1;

Hope this helps you out.

Edit: Just to explain. The higher the speed variable is, the slower it will be. For this, it will take 4 frames to increment once.

Imagination is more important than knowledge.

Last edited by NextDesign; 08-06-2010 at 01:26 AM.

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# 3 08-06-2010 , 02:40 AM

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Join Date: Oct 2008

Posts: 30

no dice, i can scroll through the time slider *which animates but play it or play through playblast the image stands still.

im using maya 2008.

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# 4 09-06-2010 , 05:03 AM

Technical Director
Join Date: Feb 2004

Posts: 2,988

I'm not sure what the problem is. It plays back just fine on my machine.

Imagination is more important than knowledge.

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# 5 09-06-2010 , 06:54 AM

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Join Date: May 2005

Location: Manchester Uk

Posts: 6,300

It could be the file numbering of the images. Check to see if they are compatable with Maya.

Thers is a thread on this in the members loungs (think the title has image sequence in it)

"No pressure, no diamonds" Thomas Carlyle

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# 6 11-06-2010 , 12:37 AM

Technical Director
Join Date: Feb 2004

Posts: 2,988

I don't know... It may be that the images are just too big for Maya to cache into memory at once. What are the resolutions of the images? I assume that your images are in the "name.####.ext" format.

Imagination is more important than knowledge.

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# 7 21-06-2010 , 02:01 AM

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Join Date: Oct 2008

Posts: 30

Im pretty sure its not the file size (pretty low res), ive attached the images.check it out. It could be a naming problem. Im all out of ideas user added image

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# 8 21-06-2010 , 07:07 PM

Technical Director
Join Date: Feb 2004

Posts: 2,988

Plays back just fine on my machine. What are your machine's specs?

Imagination is more important than knowledge.

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# 9 22-06-2010 , 12:00 PM

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AMD athlon 64 x2 dual Core Processor 2.01 Ghz
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# 10 25-06-2010 , 07:03 PM

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Join Date: Feb 2004

Posts: 2,988

Hmmm... Oh. Make sure that your playback speed is set to "Play every frame"

Imagination is more important than knowledge.

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# 11 26-06-2010 , 04:09 AM

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Join Date: Oct 2008

Posts: 30

yep, play every frame selected. still no dice user added image

could it be the amount of time on the animation?
the animation stops @ frame 27. so.....

file3.frameExtension= floor ((frame - 1) / 3) + 1;
if (file3.frameExtension > 9)
file3.frameExtension =1;

im guessing this expression is like make each image go for 3 frames.

3 frames x 9 images = 27 total frames.

I just want it to loop after 27 frames.

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# 12 29-06-2010 , 01:16 AM

Technical Director
Join Date: Feb 2004

Posts: 2,988

No that isn't a problem. Also, my expression is faster to evaluate, as it doesn't do as much math as the floored one.

I think it has to do with your computer. Try making a plane in a new scene, and see if it plays back then. Otherwise, I think you're a bit sol here mate.

Imagination is more important than knowledge.

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Image sequence speed?

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