Can TG2 create canyons? If so how do I mould the terrain to create one? I tried using two heightfields, one on the left and one on the right with the camera in the middle. But the side of the heightfields are very smooth with no roughness or shape and just go straight up. I think the only canyon images I have seen have just been imported terrains and not created.
You probably need to get World Machine or any other useful terrain builder to create the main terrain. Here's a tutorial, after you get your terrain - http://forums.planetside.co.uk/index.php?topic=583
^ What he said.
just search google for world machine.
Regards,
Will
I was hoping terragen could create canyons, didn't really want to use another bit of software but if thats the only way i'll take a look. Thanks
you could but it would be easer to do it in anouhter program.
Regards,
will
It is possible to do canyons (either wide open spaced ones, or trenches) by using the heightfield features in TG2. Working on the fractal settings for these will help.
Best regards,
Andrew Randle
The Geostation
Try it this way:
First: Play with a terrain until you have some really good ridges (like an inverted canyon).
Second: Create a normal fractal terrain.
Third: Add a merge shader
Fourth Choose for the merge a subtract (in the second tab)
Fifth: Play with the scale of your first terrain to your needs.
Volker Harun
Andrew I have been messing around with heighfields but the sides didn't look right. I added a power fractal to the heightfield generate node and this helped a little but it still didn't look right.
Volker, this sounds very interesting. I'll play around with this method and see what happens. Have you seen any canyon images that have been created with 100% in terragen?
interesting topic!
gave it a try, used 2 heigthfields, both going through twist and shear shader, used volker's hint (BIG thanks!) and merged with a fractal terrain.
Interesting results.
Quote from: child@play on March 18, 2007, 07:41:51 PM
interesting topic!
gave it a try, used 2 heigthfields, both going through twist and shear shader, used volker's hint (BIG thanks!) and merged with a fractal terrain.
good job.....what was volker's hint agan???
thx ;)
Quote from: Volker Harun on March 18, 2007, 03:37:31 PM
Try it this way:
First: Play with a terrain until you have some really good ridges (like an inverted canyon).
Second: Create a normal fractal terrain.
Third: Add a merge shader
Fourth Choose for the merge a subtract (in the second tab)
Fifth: Play with the scale of your first terrain to your needs.
Volker Harun
;D
that's the part i've been struggeling with, it's basically a way to add more displacement to the terrain, so that it doesn't look too straight and 'defined'
p.s.: trying to create a whole canyon-landscape now.
i want to build it from 1 big heightfield (H 1) -grey- , which is sunk, let's say y = -2000
after that, i want to place several other heightfields (H 2...7) -brown- on this 'base-heightmap',
let's say feature scale = 1500
the base (H 1) has no real heigthfield, it's just a flat, quadratic 'hole', the other heightfields are being generated, they go through the same shaders, maybe except for twist and shear direction.
what do you think, can it be done this way? (sorry for the bad sketch ;))
:-[ i apologize for the double-post, but i got first results i wanted to share
just a very quick render...
Those looked at first like..steps :P
But nicely done! :)
hehe, yeah, just a quickie, was almost falling asleep ;)
right now, after adjusting the strata´, adding fake stones etc. i'm exploring the scene. found a nice 'close-up'.
the structure on the left is a fake stone, scale = 100, with strata
edit: second pic is the same spot, only 250m above, the red dot is the camera-pos of the first pic
hm, strange artifacts occured, like in the blue 'circle'
Quote from: Volker Harun on March 18, 2007, 03:37:31 PM
Try it this way:
First: Play with a terrain until you have some really good ridges (like an inverted canyon).
Second: Create a normal fractal terrain.
Third: Add a merge shader
Fourth Choose for the merge a subtract (in the second tab)
Fifth: Play with the scale of your first terrain to your needs.
Volker Harun
That's what I did, but I can't get it right. Could you please explain this further? (See attachment)
I took a look at you file. I posted a fix and an explanation in the file sharing section. Here's the link.
http://forums.planetside.co.uk/index.php?topic=9575.msg100645#msg100645
njeneb, thank you, you have been very helpful to me.
A question though, how DO you use the merge shader? I can get one shader linked to the merger, but isn't it supposed to merge together two, or more shaders?
I am not well versed with the merge shader. Basically, you can take to types of noise from two power fractals. These can be combined to give a new noise pattern. From what I understand, it functions like a Boolean mask. Node groups can also be combined; probably just about anything you can think of in T2.
I'm not saying this is technically correct but from my experience I have foude the merge shader useful to combine two types of terrain. For example if I create a low displacement, small scale "rolling hills" type terrain and merge that with a high displacement, large scale mountenous terrain using "Choose by altitude" > "Highest (raise)" the result will be that the "rolling hills willbe in the Valleys of the mountenous terrain.
:)
Richard
Richard is probably more correct than I. I have rarely used it. I tend to stick with surface layers, distribution shaders, or power fractals. surface layers get used for coloring and general displacements. I also use them for ecologies like rock, sands, and grasses. I use distributions shaders to beak up displacements and control object populations. Power fractals for coloring, displacements, and sometimes masks.
I'm sorry to up this topic. I'm a new user of Terragen trying to create different thing in this software to see if this possible to integrate into a pipeline of production. I've try to create a canyon, I don't succed. I made my search and I found this topic.
The technic describe by child@play, in this image (http://forums.planetside.co.uk/index.php?action=dlattach;topic=1093.0;attach=2702;image), have a kamm and becken node. Do its a a node include in full version or it's rename node? A merge shader?
I'm not familiar with Terragen and courant English term.
Thanks to reply
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Big thanks! :D