vertical stretching of voronoi

[mhaze]

Hi All,  I don't seem to be able to stretch the voronoi 3d diff shader more than about 5 times it's width in the Y direction.  Is it just me, am I missing something or is this a limitation?

[AP]

Try this.

[mhaze]

This makes no difference at all try it with a SSS or power Fractal!

[Hetzen]

A flat surface will only take the fractal value at altitude=0. If we're at the origin, then y is pretty much altitude.

So if you expand y in your noise pattern, the surface is still only ever going to see the pattern at y=0.

[AP]

This makes no difference at all try it with a SSS or power Fractal!

Apologies, I overlooked the vertical part. I am still working on this but it does seem unlikely to work as Hetzen's explanation makes sense.

[mhaze]

Slope does affect the appearance of stretching but on a vertical surface I would expect infinite stretching.

[Dune]

And what if you stretch in X and rotate?

[mhaze]

Does weird things to the landscape!  I've solved the problem to some extent by using lateral displacement only. Will post some pics soon.