First thanks for the answer, and basically I want my picture to change scale everytime a certain value = 1 but not in between and to make it that it switches between two scales (an output of [-s[0],s[1] or [s[0],s[1] where “s” is the scale property of the layer).
And no I didn’t knew that it was recalculated every frame so now I don’t really know if it’s possible because the event (when that value reaches 1) isn’t regular (it is synchronized with an aduio layer)…