I was wanting to be able to show a grid as the floor and I tried making a grid plane (intersections only near integer grid lines) along with a grid pattern to color it. But there were issues when building this as a y=0 plane then rotating it to a x=0 or z=0 plane, and when viewed from the same plane, the grid lines disappear because they have no thickness. I worked on adding thickness and hit more issues.
So I decided to add the grid as lines. But I didn't see a decent way of doing that (Still working on triangles). So I decided to just use thin cylinders. And this was easy and they didn't slow things down too much. See first image.
Then I played around with some of the variables and got the second image which I thought was interesting enough to share.