Hi there, I have been playing around with RVT on my landscape. I see a world height pin on the RVT output and sample nodes, however, whatever I connect to it, it seems to give a value of 0 or lower as it shows as black when connected to base color. What does this pin do, does it work, and if so, how is it used and for what purpose? The only thing I see in the documentation about it, is that it stores a height value. However it clearly does more than that as it seemingly destroys any data I feed it.