[Koby Goldberg]

Great Vince,
Thank you.
Those are good news!

So next, how do I export my video to MPEG-2 without compressing again to MPEG-2 (using instead my current MPEG-2 video compression)?

[Koby Goldberg]

Henry,
You could actualy can do this using an expression, and the “CC Time Blend” effect…

1. Create a new composition, create a Solid in it, and make a small
round mask on that solid (i.e.: small circle on a transparent background). Make the size of the circle as your desired Blueprint line width .
2. give that solid a wiggle position expression, something like:
wiggle(0.1,300)
so you will have this small circle moving on a random path.
3. Insert this composition to your main comp,
and give it the “CC Time Blend” effect, with Transfer = Add, Accumulation = 100%

And that’s it !

Play with the wiggle paramethers to achieve a different stroke path.

p.s.: The “CC Time Blend” effect needs to be rendered always from the beginning of the timeline, so always before you make a RAM preview, clean the cache by Edit -> Purge -> All. (or else you could get strange results in the RAM preview)

Koby.

[Koby Goldberg]

Hi Brendan,
You could do the multiplication by “value” inside the ease function, and it would work the same. I wrote it outside just in order to write “value” fewer times… just a habbit of making the expression shorter…(check out the following code) I had it in an even shorter notation, but wrote it longer to make sure it is more understandable to all 🙂

Check out this code, it will do exactly the same:

start = this.inPoint;
dur = 30;
end = this.inPoint + framesToTime(dur);
segTotal = end - start;
seg1 = segTotal*.8;
seg2 = segTotal*.2;
mult = 1.15;

t = time - inPoint;
if (t < seg1) ease(t, 0, seg1, 0, mult*value) else ease(t, seg1, seg1+seg2, mult*value , value)

Koby.

[Koby Goldberg]

Try
Math.abs(…)

Koby.

[Koby Goldberg]

Try this:

start = this.inPoint;
dur = 30;
end = this.inPoint + framesToTime(dur);
segTotal = end - start;
seg1 = segTotal*.8;
seg2 = segTotal*.2;
mult = 1.15;

t = time - inPoint;
if (t < seg1) ease(t, 0, seg1, 0, mult) * value else ease(t, seg1, seg1+seg2, mult, 1) * value

Koby.

[Koby Goldberg]

Mark,
Note that asin, acos,… return the angle in Radians!
If you want to convert it to Degrees, you should multiply the result by 180 and divide by pi (Math.PI).
However, if you are using sin(x) or cos(x), x should be in Radians.

Koby.

[Koby Goldberg]

Yes, they exist. Use:

Math.asin(x)
Math.acos(x)
Math.atan(x)

Koby.

[Koby Goldberg]

You are having a problem because your variables: width and height are reserved words…
They represent the width and height of the layer…
Give your variables different names, and it should work !

Something like:
wid=thisComp.width/2;
hei=thisComp.height/2;
freq=2;
w=wiggle;
x=w(freq,wid)[0];
y=w(freq,hei)[1];
[x,y]

Koby.

[Koby Goldberg]

I saw what you mean.
Try using a sin expression for the position, and enable motion blur.
You could start with something like:

Amplitude = 50;
Frequency = 15;
x = Amplitude*Math.sin(time*2*Math.PI*Frequency);
value + [x,0]

play with the Amplitued and Frequency.

Koby.

[Koby Goldberg]

What is: “MK12’s Untitled:EXP:Infinity” … ?
Is it a movie ?
Can you provide a link to that shot you were referring or something similar ?
You should be more specific about the effect you are trying to achieve, in order for someone to be able to assist you…