Bricks random pattern

[Joseph_Oster]

Control gap between bricks in a wall grasshopper

You didn’t post a model so I can’t speak to your particulars. I took a copy of the model referred to above and added a cyan group that offers a “Gradient” option affecting the gap. The output of the Range component can be reversed so the gap diminishes toward the top instead of the bottom. I replaced a pair of Split Tree components with a better way to cull bricks on alternate rows. There are some assumptions made here that I’d rather not get into changing, though I can see reasons to do so.…