CC Sphere offset expression

[Mike Clasby]

I named layer 1 “Master” and Layer 2 “Offset”.

This expression goes on layer 2’s CC Sphere’s, X Rotation:

thisComp.layer(“Master”).effect(“CC Sphere”)(“Rotation X”) + 90

This expression goes on layer 2’s CC Sphere’s, Y Rotation:

thisComp.layer(“Master”).effect(“CC Sphere”)(“Rotation Y”) + 45

Basically I just pickwhipped from layer 2’s rotation to layer 1’s, then added the desired offset.

Is that what you want?

[Derek Hader]

Thanks Mike,

I figured it was a fairly simple solution, I just didn’t know where to add the + 90.

Unfortunately it hasn’t quite had the desired effect.

I’m trying the age old elusive technique of making a soccer ball with CC Sphere. I’ve made a satisfactory pattern in PS for the middle of the ball. And I was thinking if i left the top and bottom blank, I could simply add a logo using a second offset layer.

The ultimate goal was to link these layers with the expression you gave me, and then have the ‘Master’ layer auto-orientate to the camera using Andrew Kramer’s demonstrated technique to insert it as a 3D object in a 3D scene.

However, I’m thinking it might not work, because the Y rotation affects the 2 layers differently. The master layer spins like a clock, while the offset layer spins like a clock laying flat.

Any suggestions, or can u think of a way to modify this expression to work properly?

Thanks again,

-Derek-

[Filip Vandueren]

There are a lot of troubles with interpolating using 3D-rotations, It’s not easy to wrap your head around.
That’s partly why After Effects offers both orientation and x-y-z rotation.

Anyway, perhaps it’s better to create your logos in the same pattern.

start off with the logo you want to add to the top of your ball in Photoshop.

Apply Distort -> Polar Coördinates and choose Polar -> Rectangular.

Add the resulting image to your panaramic texture of the football and it should look ok when wrapped with CC SPhere

[Derek Hader]

Filip,

Iteresting suggestion. I’ve never used this effect before, so I’m not sure exacly how to apply it to stretch my logo on my 2:1 rectangle before applying CC Sphere.

I will see if i can accomplish what you think can be done. But I also welcome anyone else’s expression suggestions to solve the problem i described in my previous posting.

Thanks all for your help!

-D-

[Derek Hader]

Does anyone know of an expression that can accomplish what I’m after?

-D