Very nice stone and cracked rocks

Started by moodflow, July 30, 2007, 01:09:02 PM

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Volker Harun

The voroni is nice, but has too hard edges for my taste.

Volker Harun

Meanwhile ...

maybe I should just stop listening to Deep Purple while playing with functions ... or the vice versa? ;D ;D ;D ;D

rcallicotte

All I can say is BRAVO.  Keep up the good work and I'll just keep trailing along behind you.

Remember Forest Gump when he was jogging across America?  I'm about the 20th guy back with a number of you following...who is it?  I can't see them.  They haven't cut their hair in a month of Sundays...
So this is Disney World.  Can we live here?

moodflow

Woah, thats some psychadelic stuff right there!  Pretty sweet.
http://www.moodflow.com
mood-inspiring images and music

bigben

I have been playing with something which may be of use in some situations... more of a pictorial approach to function thingies  ;)

Fractals are functions but don't look much like cracks..... but what about a contour along a particular tone in a fractal?

Attached a quick hack, although for rocks you'd need to rescale things a lot.  A lot hinges on the fractal so it may be difficult getting the exact effect you want, but you might find this handy for other stuff as well. 

I tried using something like this as a mask for creating waves of clouds (combining multiple contours from a single fractal). While it sort of worked, it did push render times way up beyond reasonable levels... but on surfaces it's pretty quick and simple.

moodflow

Good find BigBen!  I'm gonna play with this idea.
http://www.moodflow.com
mood-inspiring images and music

old_blaggard

http://www.terragen.org - A great Terragen resource with models, contests, galleries, and forums.

Volker Harun


rcallicotte

So this is Disney World.  Can we live here?

Tangled-Universe

Accidentially I was also working on something like this and here are the results so far.
I have been using the voronoi crack trick on this one. The clipfile was from a "dried mud" topic which I can't find anymore. So kudos to it's creator.
Only thing I did was fiddling with the voronoi scales, slopes and displacements.

I've attached the clipfile with the settings as seen in the pictures below.
Load the clipfile and connect the displacement output to the surface-input of the fake stone layer. As you can see I already had the stones displaced using a default shader which had 2 powerfractals mixed and connected to it's displacement port. I connected the displacement output of the cracks to the input of the fake stones' default shader. Hope you can follow me :)

The first image shows displaced fake stones using 2 mixed powerfractals:
The second image shows displaced fake stones using 2 mixed powerfractals and the voronoi cracks:
Hope this will be of any use to you Moodflow :)

Martin

Will

very nice work everyone. really interesting stuff here.
The world is round... so you have to use spherical projection.

moodflow

@Tangled:

Many thanks!  This is really nice...   8)
http://www.moodflow.com
mood-inspiring images and music

rcallicotte

This was created with all of my own materials (no one else's clip files, etc.), based upon everything I've been asking about this last week or so.  Thanks for everyone's help and, while this is a WIP, I believe I'm on the way to understanding.  Thanks (you know who you are).

This is a side of a fake stone (no images).
So this is Disney World.  Can we live here?

j meyer

Hi,
played around with the file Tangled-Universe posted the other day.
Maybe it´s not what moodflow wanted,but since it was derived from
the above mentioned file i post it here (instead of making a new
thread in the file sharing forum).
2c,2b2 and v2 share the same heightfield and have the same camera
position,but different nodes.2b2 and v2 use a "heightfield smooth
erode" and that can cause some inconvenience when opening the tgd,
that´s why i´ve attached only a tgc for 2b2.No file for v2 for the
same reason,but it´s identical with v3 except for the terrain,so
you should be able to change it to a heightfield again,if desired.
Hope it´ll be useful for someone,J.

old_blaggard

http://www.terragen.org - A great Terragen resource with models, contests, galleries, and forums.