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General => Image Sharing => Topic started by: René on October 20, 2017, 01:30:40 PM

Title: Population of rock objects
Post by: René on October 20, 2017, 01:30:40 PM
w.i.p.
Title: Re: Population of rock objects
Post by: cyphyr on October 20, 2017, 03:27:49 PM
Looking good. Great solution to the old cliff square noise problem.
I'd love to see a render of the individual object/objects.
Title: Re: Population of rock objects
Post by: Dune on October 21, 2017, 02:53:53 AM
That's a cool solution. Are they the internal rock objects or imported? I guess the latter. Internal rocks would have to be squared as well, so would be more cumbersome.
Title: Re: Population of rock objects
Post by: Hannes on October 21, 2017, 03:00:59 AM
Looks indeed cool!!
Title: Re: Population of rock objects
Post by: mhaze on October 21, 2017, 05:08:32 AM
Great solution to an old problem
Title: Re: Population of rock objects
Post by: René on October 21, 2017, 06:41:46 AM
These are imported rocks made in Sculptris.
I have tried to find a solution to the square noise problem because square noise is essential in making common rock formations on Mars.
There are still a few things to do: better rocks, more variety and a natural placement for different kinds of rocks. In the end it will probably be a combination of rock objects and displacements that fit together well.
Title: Re: Population of rock objects
Post by: BigMisch on October 22, 2017, 07:15:45 PM
Awesome work!! Went to your art station too, so much nice work! I'm new to TG and don't fully understand how you did all this, but it's all really well done haha. :D
Title: Re: Population of rock objects
Post by: cyphyr on October 23, 2017, 03:37:34 AM
Cool technique especially as you've only used the one rock object.
Title: Re: Population of rock objects
Post by: René on October 23, 2017, 05:35:59 AM
Rock pop 4
Title: Re: Population of rock objects
Post by: Dune on October 23, 2017, 09:56:23 AM
Cool. Still just the one rock object? You could mix some more... interesting technique that I have to try myself.
Title: Re: Population of rock objects
Post by: René on October 23, 2017, 03:46:08 PM
Yes still one rock object, different sizes and stretched and flattened. It's meant as a proof of concept.
Title: Re: Population of rock objects
Post by: Kadri on October 23, 2017, 05:04:32 PM

Looks interesting.
Title: Re: Population of rock objects
Post by: zaxxon on October 23, 2017, 05:04:47 PM
Some innovative ideas and lovely results, certainly a big challenge!  I saw this today and thought of you. Don't know if using Substance Designer is an option you've considered, but there are some nice rock texturing examples out there.

https://www.artstation.com/artwork/kxrDd
Title: Re: Population of rock objects
Post by: Dune on October 24, 2017, 03:05:18 AM
That's what we need in TG, procedural!
Title: Re: Population of rock objects
Post by: mhaze on October 24, 2017, 04:45:49 AM
Ditto!
Title: Re: Population of rock objects
Post by: René on October 24, 2017, 12:07:25 PM
Quote from: zaxxon on October 23, 2017, 05:04:47 PM
Some innovative ideas and lovely results, certainly a big challenge!  I saw this today and thought of you. Don't know if using Substance Designer is an option you've considered, but there are some nice rock texturing examples out there.

https://www.artstation.com/artwork/kxrDd

These displacements looks beautiful. I have not yet experimented with SD, but I intend to see what it can do for me. I am particularly curious to know whether an SD displacement will cause the same problems as procedural square noise in Terragen.
Title: Re: Population of rock objects
Post by: bobbystahr on October 24, 2017, 12:11:39 PM
Quote from: Dune on October 24, 2017, 03:05:18 AM
That's what we need in TG, procedural!

Hear! Hear!
Title: Re: Population of rock objects
Post by: bobbystahr on October 24, 2017, 12:12:28 PM
Quote from: René on October 24, 2017, 12:07:25 PM
Quote from: zaxxon on October 23, 2017, 05:04:47 PM
Some innovative ideas and lovely results, certainly a big challenge!  I saw this today and thought of you. Don't know if using Substance Designer is an option you've considered, but there are some nice rock texturing examples out there.

https://www.artstation.com/artwork/kxrDd

These displacements looks beautiful. I have not yet experimented with SD, but I intend to see what it can do for me. I am particularly curious to know whether an SD displacement will cause the same problems as procedural square noise in Terragen.

good question...
Title: Re: Population of rock objects
Post by: René on October 24, 2017, 12:14:39 PM
There are still some flaws here and there.
Title: Re: Population of rock objects
Post by: Oshyan on October 24, 2017, 04:12:27 PM
Unfortunately as far as I know Substance Designer only exports static raster texture data. It can be seamless/tileable, but there will be repetition without careful masking, blending, etc. and of course less potential detail than native procedurals.

- Oshyan
Title: Re: Population of rock objects
Post by: Dune on October 25, 2017, 04:14:56 AM
Procedural world position additions would help. And the ability to populate the displacable objects.
Title: Re: Population of rock objects
Post by: mhaze on October 25, 2017, 05:08:25 AM
This is a great solution for some kinds of outcrops but I can see two major issues. One, there is a lot of repetition in the textures and two,  it would be hard to use for more wide angle and general use such as a mountain range or large cliff feature.  There is still a need for procedural sharp edged square noise.
Title: Re: Population of rock objects
Post by: zaxxon on October 25, 2017, 09:01:02 AM
Substance Designer, not 'Surface Designer '... I understand the limitations applied directly into TG, but my thought was to use it on the Sculptris object then import into TG, not that I've tried such an approach.  Still, it would be very cool if there were some angular, square noise shader types native to TG.
Title: Re: Population of rock objects
Post by: René on October 25, 2017, 09:59:02 AM
Does anyone know an example where 3d noise has been successfully applied to a terrain? I searched for it but I couldn't find anything, at least no real square noise. Manhattan noise seems to come closest.
Title: Re: Population of rock objects
Post by: mhaze on October 25, 2017, 11:31:54 AM
I'd like to see clumped Square Noise like this, which, when layered would produce amazing effects.  It needs  to be soft edged rather like the soft voronoi noise we already have
Title: Re: Population of rock objects
Post by: Hetzen on October 25, 2017, 02:39:45 PM
Great work Rene! I think you might be on to something. I wonder if you could bake a top down render to use as a displacement map? Then add some of your previous Mars noise combinations?

Quote from: mhaze on October 25, 2017, 11:31:54 AM
I'd like to see clumped Square Noise like this, which, when layered would produce amazing effects.  It needs  to be soft edged rather like the soft voronoi noise we already have

You could probably combine a few different scaled squared noise functions to get that look. Have one larger scale, multiply two lower scaled/different seeded, then use an adjust colour to pull the white and blacks together. That would create clumping like your picture.
Title: Re: Population of rock objects
Post by: Dune on October 26, 2017, 03:22:44 AM
It's about time I shared a little secret of mine; try a repeated small image map of some squares/rectangles in different shapes/greys, and combine those. Works pretty nicely, though real sharp straight rocks are still an illusion.
Title: Re: Population of rock objects
Post by: mhaze on October 26, 2017, 05:14:46 AM
Yes I've tried this too!  but I'd really love a procedural solution!  I''l have another look at Hetzen's square noise and see if I can develop that.
Title: Re: Population of rock objects
Post by: mhaze on October 26, 2017, 06:59:41 AM
Hetzen's idea of using colour adjust to clump displacements works woo hoo!
Title: Re: Population of rock objects
Post by: Dune on October 26, 2017, 09:18:51 AM
I've used Jon's setup (extra mixing within the setup) for quite a while now, and it works fine. But the image map (mixed) is extremely low in nodes, and works just as fine.