Help to understand expression : toComp(value);

Hi there,

rather for help I am seeking understanding what's going on in the following simple case:

When I add a Point Control effect to the layer. The position of this point is absolute. I add a simple expression to it:

toComp(value);

(It seems, that "toWolrld" behaves just the same.)

After this treatment the Point Control seems to be positioned relatively to the layer which is applied on. So when I move the layer, the point moves with it, but the Point can be moved freely as well.

Would you kindly help me to understand why this works? I thought, that everyhting unparented is child of World. So why after this expression it seems to be child of the layer space itself?

Thank you.