This is perfect, thank you!

I would like to create an animation, where one frame are represents one day and the date are displayed. But i have problems with the leap year calculations. I have two constant input values from two slider: the starting year and the starting day of the year. These values are increment with based on ...

Unfortunately i have CS4. But this works.
Thank you Dan!

How can i reduce the light intensity with distance from camera, if both of the camera and the light is parented to a Null layer?

I have a combined transition effect on an adjustment layer with two control (amount and duration sliders) and I want to triggering this with layer markers. How can i solve it to start before the marker, at the marker reaches the maximum amount, and return to normal value?

I found these solution for the CC Sphere light linking: http://www.motion-graphics-exchange.com/after-effects/Ultimate-CC-Sphere-Light-Comp-Camera-linker/4b539a347c787 But the Light Height parameter not working perfectly. Shows a small fluctuation when the camera flying around the sphere, but i don'...

I was looking for the second version.
Thanks Dan!

I need an expression for change the opacity depending the layer relative angle to the camera.
(Example: when the camera and the layer is face to face, then opacity is 100%, and 0% if we see the side of the layer.)
Sorry, but i'm not a genius, i don't know how to create a single value from lookAt...

Hi!
How can i use the "lookAt", and "length" function for the opacity?

Here is a helpful tutorial:
http://www.youtube.com/watch?v=uKAqSeC5a-k

But I have a similar question: how link the light layer parameters to CC Sphere light options?