cornfields and aerial landscapes

Ariel DK · March 19, 2015, 09:49:23 PM

need some help to create these kind of aerial views ...
I'm sure this can be created in TG, but I'm lazy
and the truth is I'm a little lost in this moment

I started with simple shaders and I need masking
to simulate "agricultural areas"
What is the simplest way to achieve this?
Blue nodes are not my forte

Dune · March 20, 2015, 03:11:14 AM

Map them in Photoshop, that's my way, if needed make it tiled. Copy three sets of fields to RGB channels, save as one tif and split again in TG though convert Red to scalar, etc.

Ariel DK · March 20, 2015, 10:20:00 AM

thanks dune
hoped this could be achieved procedurally...
but well, here my first try... this is what he meant?
I was thinking of using an alpha channel
to distribute real populations in the future

bigben · March 20, 2015, 10:32:11 AM

Check the file sharing section for a procedural grass model. Should work well scaled up to simulate corn from this distance.

TheBadger · March 21, 2015, 03:45:37 PM

AD, how did you make that image?!

I want to know this one!

bigben · March 21, 2015, 07:36:43 PM

Zooming in really close that still looks like satellite imagery (?)

I'd have a hunt through here: http://www.planetside.co.uk/forums/index.php/topic,9147.0.html for some rectangular noise. Take one rectangular noise function, feed it into multiple transform shaders to provide a random array of overlapping masks at different scales to build the fields.

Dune · March 22, 2015, 02:27:40 AM

Yes, it looks like a projected google image.

bobbystahr · March 23, 2015, 09:18:05 AM

Quote from: bigben on March 20, 2015, 10:32:11 AM
Check the file sharing section for a procedural grass model. Should work well scaled up to simulate corn from this distance.

There is also a free preset that does procedural grass etc. very well in the package that PS gives away on the downloads page. Based on the Fake Stone.

jaf · March 23, 2015, 11:33:14 AM

... and then there are circular crops (circles). Check out Google Earth at 35_58_50.20N & 102_03_18.21W (don't think it's legal to post an image from Google Earth.)

Oh, and Google Earth Pro which used to be $399 usd is now free. Street View can be rather interesting.

Ariel DK · March 27, 2015, 10:41:45 AM

Quote from: Dune on March 22, 2015, 02:27:40 AM
Yes, it looks like a projected google image.

google earth? not at all. I've only used an old 2D "creator of terrain" to download some time ago somewhere on this page: http://www.digitalcombatsimulator.com/en/
is not very good, but its bitmaps can be refined in photoshop, and be exported as:
Color: (in low resolution)
grayscale: (additional displacement, not very useful)
and alpha channel: (Populations)

almost a year ago I not use Google Earth to nothing, but you also have given me a good idea

Ariel DK · March 27, 2015, 10:49:37 AM

Quote from: bigben on March 21, 2015, 07:36:43 PM
Zooming in really close that still looks like satellite imagery (?)

I'd have a hunt through here: http://www.planetside.co.uk/forums/index.php/topic,9147.0.html for some rectangular noise. Take one rectangular noise function, feed it into multiple transform shaders to provide a random array of overlapping masks at different scales to build the fields.

woow!

thanks for the link! I like me the idea but looks very hard

bigben · March 27, 2015, 04:16:57 PM

Check this one out: http://www.planetside.co.uk/forums/index.php/topic,7494.0.html Unfortunately it looks like he only released the Tornado

Ariel DK · March 28, 2015, 08:03:33 PM

I am not convinced with the results of Frank
in my humble opinion, he began with a better image with which I finish
however, it's still a good idea of what can be achieved

Dune · March 29, 2015, 02:12:16 AM

With a combination of stretched and 'cross-merged' fractals and voronoi merged in, I think you can get quite close to triangular+squarish fields.