It's rather odd since the AS version and evaluation one use absolutely the same demo scene. What is exactly wrong with the performance? Is it low FPS or lags on terrain apply? Or hiccups while terrain is generating? How big are they or how low is FPS? It's exactly the way they could be created! No have no tutorial on that, but you've got it right: the most bottom layer should have an empty block and high noise curvature, while the higher layer should be cliff and more flat. Error description helps, but it would be cool if you could memorize the sequence of things you do so I could reproduce this issue. A bit unclear here, but I guess it's related with Voxeland only anyways. Are they single voxels, or form groups? If so, what id the height of the group? You can use voronoi for that - cell mode, inverted by curve. However the lines would be straight, you will need warp generator (image) or something. Isn't stamp node is what you are talking about? It's not about tiling, but here is the example that literally turn one cone into a series of the smalle cones.