Hello! Im wondering if the mountains in Far cry 4 are a part of the skybox or are they standing in the terrain?
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The devs said that any mountain you see, you can go to. They are real. Plus putting a mountain in a skybox is a bad idea anyways.
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Is it possible to make such mountains in Unity? If so how?
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Of course. You cannot do it yourself. These are made by at least 30 industry veterans. The best you can do is buy them off the asset store. But I promise you that you cannot make that all by yourself.
Either buy it or program a generator
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Do a Google image search for “World Machine”. They have a page on using it with Unity.
I’m not sure if Ubisoft uses this tool specifically–they are big enough that they may easily build all their own custom tools–but it is widely used by people to make awesome terrains.
theres many different terrain generator programs that produce Really amazing terrains… google for them i forget them all…
worldmachine is one… there was a really good one, but i forget the name… havent needed it myself yet…
Terragen. … but theres many terrain generators around
… theres a totally free one, i forget the name… its not as amazing, but pretty close
You should check out terrain generation tools like mentioned above, the issue isn’t making them it’s making the game efficient enough to be able to stream in and out the vast distances whilst keeping the view plane long enough. Similar example is what I am working on, need to get more grass in without it dive bombing:
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Well, since a game like FC4 will need 2-3 GB GPU card, I think it will stream smoothly.
The amount of memory a graphics card has is only a small part of the overarching issue.
the farcry’s always look pretty damn amazing… enjoyed the last one (with the exception of having to install their bs version of steam… uplay or something…)
will def pick up the next one.
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Dat 2nd ending doe…
@ yes they probably did use some generator cause who the hell has time to make that by hand? Haha…
To OP, I have seen some really nice mountain assets but they can be a bit pricey. A generator is probably your best option and I’m sure you can find some online for pretty cheap. Also look into height map generation if you want to program your own. Just keep searching online I know you will find it 
I think if you made mountains with the quality of Farcry 4, Unity itself wouldn’t be able to handle them at a playable framerate lol.
I think the issue would be making mountains like that and still having a playable game in Unity. There’s probably a lot of multi-core processing and performance techniques that are being used to make that scene playable in a game (like ShadowK said…streaming etc…). I’m betting Unity doesn’t have that kind of capability out of the box.
But…I’m one to say that nothing is impossible. It probably can be done. They do look awesome
Well that picture I posted is from our game, it’s currently 32KM squared and has more mountains than you could potentially throw a cat at. All running at 60 FPS on a 780m with a shed load of foliage…
Took some doing to get there must admit, most of it comes down to keeping the heightmap resolutions low I think we have something like 512 streched 512X512 maps all in sync which is then streamed in layers (or waves) dependant on where you are on the map.
Also much easier if you can LOD as much as possible, create enough mountains in the short distance to cover other mountains and give the poor occlusion culling a chance.
Dude, your pic looks amazing! While my game is just cubes with scripts on them, yours has very nice graphics. I must be the only one that likes the look of the Unity Shaders haaha… gives it that ps2 feel. Anyways, game looks great and I will definitely pick it up when it is released. I am looking for some good RPG’s to play cause I have none left 
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Going off topic sorry op, but yeah I know can’t believe they delayed Witcher 3 AND Dragon age 3 ahhh! LOL.
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There’s nothing technically difficult about rendering good-looking mountains, it’s creating the artwork which is difficult.
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QFT
And to add to that, calmcarrots was obviously being facetious, there is nothing stopping you or anyone else from making a mountain like that if you have the time and aptitude, making the whole game though might be a tad more difficult. Think of each mountain as a level, do the standard level design, concept, lookdev etc, make sub-levels if your characters are going to get close and you need events to happen on the mountain, and don’t waste time on areas that wont be seen. Be prepared to use tools outside of Unity for shaping the level, the Unity terrain object is convenient, but it can’t match z-brush or sculptris when you need a specific dramatic silhouette, and you can bake out the results including a heightmap if you still want to use the terrain object underneath it all.
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But it is technically difficult if, technically, you don’t know how to do it 
But, I agree, in the end it usually comes down to the artist or designer. And ShadowK your pic from your game is top-notch man.
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World Machine is an excellent tool for this. Use a ton of reference. Study mountains and note what you think are the most important details to sell their form.
Nonsense.
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If you can use Blender. Use this:
https://www.youtube.com/watch?v=cfOdEGL9Gk8
It’s called Ant Landscape add on in Blender. 
Note: Johnathan in the video didn’t make it too detailed.
But you can make the mountains and landscapes etc. more detailed.
Hopefully your GPU can handle the extra polygons.
The texturing part is up to you.
Enjoy!