I used some Photogrammetry in my advanced specialism as I thought this would be the most straight forward way to get a realistic bark material for my tree and still be able to sculpt the tree itself. Taking photographs around a tree trunk on an overcast day i took this information into Reality Capture and selected a part of the trunk. I then took this information and baked it down onto a plane in Substance Designer and had to make some tweaks to make sure this tiled smoothly.