Softer voronoi cracks

[mhaze]

Not a worik of art, an experiment!  I've tried to find a way to soften and round off the edges of voronoi cracks for some time.  Finally a eureka moment!  I used 3 colour adjust nodes with gradually expanding sizes then used a multiply scalar to darken each successive node.  The results work but I think there is room for experiment yet.  Some interesting results can be achieved by using a multiply scalar on the end result the darker the output the softer the cracks.  There is potential here but  it is fiddly to achieve decent results and more experiments are called for.

[TheBadger]

nice work! Rock formations are cool too.

[Dune]

Are you using the PF voronoi or the blue node voronoi?

[mhaze]

Hi Dune

For the voronoi cracks I'm using the blue node voronoi and PF voronoi for the basic rock forms

[mhaze]

Here's the node setup  all inside a surface shader which controls the distribution and displacement.

[Dune]

Yes, completely understandable. I see you have only one size voronoi. What you could do more to this is combine a few sizes, or use a PF as size input and use the color to set sizes (white as 11, black as 4 or so, for sizes 4-11). If you're into experimenting...

[mhaze]

In the image I've used 3 of these.  It is important that the same voronoi is used for each layer of colour otherwise there would be no softening of the cracks!

[mhaze]

Hopes this explains the technique

[inkydigit]

great work and thanks for the explanation!

looks really useful... and kinda pretty too!
J

[choronr]

Thank you for your ideas and experimentation. The results look promising.

[mhaze]

Thanks all. Hope someone can use it

[lat 64]

Thanks all. Hope someone can use it

That being said, is it possible to get a .tgc from you to play with. I have been struggling to recreate this and having no good results. I even tried once to double-click on the jpeg node. What a dope I am!
My particular interest is to make a representation of polygonal tundra in the Arctic. The voroni functions seem perfect for this. I'm just off to a bad start.

Thanks for all the tips,
Russ

[mhaze]

I'll post a tgc tomorrow!

[Dune]

I'd never heard of polygonal tundra, but google gave me some really interesting examples. Voronoi indeed. Looking forward to your render, Russ.

[mhaze]

Just done the same astonishing.