I want to scan various writing materials such as card, cloth, various grades and qualities of paper, wood, even hemp-based or other writing surfaces. The reason is I wish to write a GPU-accelerated font rendering library that would realistically mimic ink being deposited onto these surfaces.
So the first starting point I need is to identify the typical topology at the micron-level of these various writing media. I'm thinking a very small LIDAR sensor, or perhaps I could take a less small one and focus it somehow using a lens?
How would one go about this within "reasonable" cost (ie in the hundreds or early thousands of dollars, not tens of thousands).
Happy to think about non-LIDAR solutions too.