How to fix displacement modifier array cracks

Support Modeling
1

So I have this road… its a single ‘roadblock’ , with a curve modifier added for the shape. And a array to fill the curve with the block

This works perfect, but when I add a displacement modifier to give the road some bumps… the roadblocks in the array dont merge properly anymore (i have merge turned on) and im seeing some cracks between the blokcs

image
image.jpg760×213 22.4 KB

I have tried adding a subsurf to the roadblocks…but that only helps a small bit…

how can I fix this?

2

Set mid level in the displacement modifier to 0, and place the displacement modifier at last.

Added: Check if you have interior faces.