How would i go about meshing over several objects?

So ive made myself a rudimentary terrain generator using perlin noise, but im aiming for a more realistic approach to the terrain. I have a pile of voxels here, and i would like to create a blanket mesh that covers them all and serves as their collider. How would i go about this?

I’m not sure but you need to smooth the “heighmap” (perlin noise).