On the Vex Displacement Layered Shader can you have negative displacement? Using the normal Vex Displacement Shader i specified a minus number is the ‘height’ parameter which allowed me to do this but in the Vex Displacement Layered Shader the ‘height’ field is replaced by ‘Displacement Amount’ and if i put a negative number or positive number in that the resulting displacement always comes out positive…i.e. displacing out and not in….what gives?