Hi vhman, The LayerMask support is working perfectly thanks man ! However I think something is wrong in your last commit "added NavMeshBuilder2d - geometry form sprite mesh". I simply replaced the folder NavMeshComponent (the same way I did with the previous commits) and then when I tried to play on Unity the NavMeshSurface wasn't working anymore. The bake function looks broken. I tried a few tricks to make it work but I didn't manage.