You have 4 options. Landscape Flatten, Landscape Raise, Sculpt Flatten and Sculpt raise. Landscape will appear as blue, Sculpt as red.
For these examples, imagine that you are using one of the circle brushes with a sizeable non blue/red hole in the middle and a blue/red band on the outside.
(1) Landscape Flatten - Say you have a hill you want to raise 10 ft. If you place your brush over the hill and encompass the whole hill, you'll notice that everything inside the circle has flattened to a uniform height. If you raise your brush 10 feet, you'll notice that you'll have everything inside the brush flat, just 10 feet higher. The blue is the land outside your brush sloping to meet the ground inside your brush. The more blue on the brush, the more gradual the slope compared to less blue.
(2). Landscape Raise - Ok, let's take the same hill and raise it with this option. If you place this brush over your hill, you'll notice the area inside doesn't flatten. If you tried to raise your hill 10 ft now, it would stay the exact same hill, just 10 feet higher, as long as it was inside the blue circle. I could literally take a golf course I'm working on, encompass it all in a LR circle and raise it 50 feet in the air and it would all be the same down to every last hill and bump. The blue parts of this now work the exact same way.
(3 & 4) Sculpt Flatten and Sculpt raise.
The flatten and raise aspects of these work the same way.
Stick with me here. Imagine you have two index cards. You place one over the other with a few inches between them. The top one is painted blue, the bottom painted red. Punch a hole in the top,blue card and then place the blue card perfectly aligned on top of the red card. You would now have a blue top card with a small red hole in the middle.
In this analogy, what you "see" in the designer is the blue card. The red card is a hidden layer. If you raise or lower using the red brush, you are bringing that specific part of the index cards to touch each other which hides what's on the top layer and shows what's normally hidden on the lower layer.
Why is that useful? It's much easier to create a CLEAN blue card with a red dot than it would be to paint a red dot and then paint blue around it without getting blue paint in the red dot.
Applied in the designer, place a fairway bunker and use the red circle brush to lower the land close to the bunker until the fairway around it disappears. You've "punched" a hole in the top layer. If you now put light rough (or heavy) in the area where the fairway disappeared, it'll give your bunker a clean rough band. What you've done is paint the bottom layer and this is now showing through the hole.
So... what will happen if I take the Red fuzzy brush and hit R2 to raise right up?
Will it change the texture of the surface? Will it elevate the surface on top? will water appear?
Thanks!