[Rob Moffett]

Ha, worked it out. Here’s the solution if anyone wants it.

target = thisComp.layer(“background”);
a=target.sampleImage([transform.position[0],transform.position[1]], [width, height]/2, true, time)[3];
value=linear(a, 0, 0.36, 0, 180)

[Rob Moffett]

Ok, so I discovered that the error “must be 2 numbers” is because the layer i want to effect is a 3D layer, and is returning 3 numbers (xyz)

Is there a way around this, or is the sampleimage expression limited to 2D?

[Rob Moffett]

Haha, so much more simple than I thought!

You truly are the expression god.

Thanks D-man!

[Rob Moffett]

hold down space, it will bring up the hand tool.

;D