[Rafael Cruz]

Thanks for your time and help Filip.

I need to clarify my request. Darby posted an expression which increased the scale of an image as it approached center-screen on the x-axis alone. So the image grows and shrinks normally as it changes position along the x-axis only (based on it’s position relative to the center).

I would like to do the same the the position of the image along the y-axis.

[Rafael Cruz]

I hope I wasn’t asking for too much in my last post.
I really appreciate the help you given so far, and if possible I’d love to know how to epply the expression you suggested on the y-axis.

[Rafael Cruz]

I am looking to apply the expression solely to the y-axis.

*out of curiosity*
I’d like to try swapping scale for z-axis position. The idea being that when I move the image toward center-screen (say, on the y-axis) the image advances on the z-axis.
If it’s not any trouble if love to know how I could work a tweak like that as well.

Again, thanks for your time.

[Rafael Cruz]

Thanks for your help Darby.
Simple, functional, great.
How would I apply this expression to the y-axis?

[Rafael Cruz]

Thanks Dan. Now I see that [t]ime wasn’t labeled consistently. so simple! and now it’s working just as it should. I really appreciate the help.

-and-
Kevin, thanks for the suggestion. I’ll give soundkey a shot sometime.

[Rafael Cruz]

I’m not familiar with the math. It’s interesting but I’m just looking to produce the visuals that correlate with it and was hoping that there was someone a few steps ahead of me.

I have found an even better (simpler) example for what I’d like to do:

https://www.youtube.com/watch?v=yhZb_TTXSJI

I’m trying to figure out how to recreate this. I’ve applied a sine expression to a brush with a write-on effect. But I’ve still got a ways to go before I can produce something similar to the video above.

I hoping this is a clearer more manageable question than my previous post.

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[Rafael Cruz]

Thanks! I’m checking this stuff out. It seems right up my ally. Planning on picking up that issue of MAKE when I get the chance as well.

Now, I haven’t had ample time to search so I haven’t found any Mac compatible Lissajous generators. I’ll keep searching though.

In the mean time, I’m wondering, are there expressions which produce an oscilloscope effect? Would you just use sine and cosine expressions on solids (i.e. a solid circle) to produce the effect? Could you use an expression to morph a solid circle into slightly different shapes?

I don’t mean to ask so many questions, but I’m experimenting and could use a hand from someone more knowledgeable.

[Rafael Cruz]

Thanks Dan!

The change worked.
I had come to suspect that the problem was with the last line but I didn’t know what to do to correct it.

[Rafael Cruz]

I tried using this expression on the hue setting of the Color Balance (HLS) effect and it didn’t work. The problem seems to be that there are too many values in the code for the property (hue) that i’m trying to manipulate.

Is there another effect that I should apply this expression to in order to have random color change in time with music?