FOSS gamedev and creative worlds

Today I found a very strange structure. I found that floating islands are in the game without a mod for it! Is this a glitch or a feature? Screenshot: (if you know any free private image posting sites lemme know) Basically I think this is an attempt at corrosion, that went too far. :P Oh, and I'm new! Tell me stuff, like the spoiler tags and code.

It happens often with mapgen v5 and v7, and more rarely with v6. (mapgen = Map Generator)
The default mapgen is v6. (you can change it at the world creation).

Floating islands, on v6, are generally very small, and found near caves. It's a defect of the cave generator. But I think it would be so difficult to fix that it will never be fixed. It's not that annoying, it's even funny !

In the case of mapgen v5, floating islands are found in mountainous zones, and can be very large (sometimes 50 blocks long). They have a beautiful smooth shape.


Floating islands, mapgen v5. I've taken the screenshot from… another floating island !

Also, for spoiler, type:

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srifqi wrote:Hi from Minetest World!

You can have more floating islands up to a higher altitude by:
mgv5: increase the noise 'scale' of np_ground.
mgv7: increase the noise 'offset' of np_mount_height, and/or, increase the noise 'scale' of np_mountain.

paramat wrote:You can have more floating islands up to a higher altitude by:
mgv5: increase the noise 'scale' of np_ground.
mgv7: increase the noise 'offset' of np_mount_height, and/or, increase the noise 'scale' of np_mountain.

I think he doesn't want to increase the number of floating islands but to avoid it.

It's not possible to completely avoid floatlands without having a too flat terrain.

You can reduce the amount of floaty stuff (without a flat landscape) by reducing the noise 'persistence' of mgv5's np_ground or mgv7's np_mountain, try roughly 0.4.