Some semi-random thoughts on terrain generation

[xoft]

And the numbers are in. For the (non-composable) Noise3D generator the InterpolNoise is about 4 times faster than CubicNoise. This means we could increase the number of octaves, make the noise look better and still have a faster generator. I've pushed the changes to the ImprovedNoise branch, go check it out if you want.

I have a feeling, too, that the new noise has a shape slightly better for generating nice overhang shapes in the composable Noise3D and BiomalNoise3D generators. We'll see when I change the noises used in those. Tomorrow.