Maps in Game's folder

hhrhhr · December 2017

suspensionrailway wrote: »

how did you make that?!?

if in brief, then:

extract all meshes from ...\Subnautica\AssetBundles\lod4worldmeshes with AssetsBundleExtractor 2.2beta1 (or any Unity model converter can be used). in the text OBJ-format will be 5980 files with a size of ~ 1.5 GB.
To accelerate the loading it is desirable to combine these files into one large file (I did "layer by layer", each "floor")

~20M vertices, ~40M faces...
load these models into Meshlab, remove unnecessary (bottom at the level of three kilometers, side "walls"), clean (combine vertices, fix a bunch of irregular surfaces).
in Meshlab can be visualized AO and beautiful X-Ray shader, but to build a depth map I used CloudCompare v2.10.alpha

p.s.
The pictures show that in the game world there is still room for future DLC

0x6A7232 · December 2017

@nesrak1 -- does this help you at all with your terrain question? Sorry, I forget exactly what you were looking for back then but I thought it might (possibly) be related.

nesrak1 · December 2017

No, but I worked it out with suspension. I've known about the lods for a long time, but the batches were what I was trying to get.

Morph_Guy · January 2018

Could we get a another updated version of this 3D map now that the full v1.0 version of Subnautica is out and all of the final terrain touches have been made?

hhrhhr · January 2018

release verison does not contain lod meshes (...\AssetBundles\lod?worldmeshes) and a third-party renderer from the original octrees was not found yet, so no.

hhrhhr · January 2018

I still found these files, they were transferred into Unity-resources. There are a change, but nothing is noticeable. But I use the opportunity to publish 4K maps similar to those early (link to Imgur):

In addition, I uploaded the same maps to Mega in PNG-format, all the original raw chunks in OBJ and the finished huge model of the world in PLY.
The model can be opened in MeshLab; AO is assigned to the color of the vertices and the faces are painted in depth.

Avimimus · January 2018

Wow! Really lovely work.

It shows the quality and complexity of the world - giving a great sense of relative scale too...

It might also be worth combining with tanzanite's maps into a collection:
https://forums.unknownworlds.com/discussion/153314/subnautica-heightmap-spoliers

Avimimus · January 2018

I suppose between this excellent work you guys are doing and knowing the terrain format - we're only a couple hundred hours away from programming terrain editing tools?

Blackzic · January 2018

The more its white, the more its near the surface!

Tom507 · January 2018

@hhrhhr That Data is awesome, but do you have the original, after merging without modifications as well? Thanks in Advance

hhrhhr · January 2018

@Tom507 only source_obj.7z on Mega with 6016 individual objs. but you can merge them yourself layer by layer (floor by floor) with a simple command:

copy *-XX-*.obj level-XX.obj

where XX=0...24.

shironator · February 2019

hey, hhrhhr
I am trying to make map from Subnautica Below Zero. I manage to extract those chunks with bits of map and load it into meshlab.
Now I have about 9900 files with names like "Chunk_0_0_0-resources.assets-6282.obj", Chunk_0_0_1-resources.assets-6283.obj".
I have found those files in \steamapps\common\SubnauticaZero\SubnauticaZero_Data\resources.assets and extracted meshes via AssetsBundleExtractor.

I have merged them using your command "copy *-XX-*.obj level-XX.obj", now I have 24 OBJ files.
But when I load them into meshlab, it shows me a cube, where all of meshes are inside of it = chaotic mess of meshes one clipping through another.
This also happening even if I load non-merged OBJ files.
If I load files separately, one by one, I can see bits of map.

When I load your OBJ files of Subnautica map fom MEGA, they will nicely fit one beside another, creating a map.
Can you please advice, what I need to do to achieve such result?
thx.

hhrhhr · February 2019

all the "cubes" of the game world have local coordinates starting from zero. the size of these "cubes" - 32 game units. to combine into one large model, you need to add an offset to the local coordinates (chunk coordinate * 32)

for example, the dot (10,20,30) in Chunk_1_2_3 will have global coordinates

x = 10 + 1 * 32
y = 20 + 2 * 32
z = 30 + 3 * 32

in order not to do this manually, you can use any script to recalculate the coordinates. I use a slightly fixed Lua script for the original game — https://gist.github.com/hhrhhr/0969a85afce034015b8cd02ac2544477 . This script, besides the offset of coordinates, at the same time fixes the coordinate system, since this system in Meshlab is different from the game one.

result on Steam — https://steamcommunity.com/sharedfiles/filedetails/?id=1640442808

ready maps (version Feb-2019 9892) on Imgur:

shironator · February 2019

Thx very much. As far as I studied those files, I think it does following:
mass_convert.bat:
will convert mesh files in *.dat format into OBJ by using mesh2obj.lua script. It will also recalculate coords like you said before.
Then merge them.

But that "mass_convert.bat", is expecting DAT files instead of OBJ I have. In AssetBundleExtractor, the only function, which creates DAT file is "Export raw" . However, this creates file with name like "unnamed asset-resources.assets-14252.dat", so I will lost all proper numbering like 0-0-1. Even if I try to modify bat file and change *.dat to *.obj, the "mesh2obj" fails with errors like:
f:\lua53.exe: F:\\mesh2obj.lua:13: bad argument #2 to 'su' (string expected, got nil)
stack traceback:
[C]: in function 'string.unpack'
F:\\mesh2obj.lua:13: in local 'uint32'
F:\\mesh2obj.lua:38: in local 'convert'
F:\\mesh2obj.lua:117: in main chunk
[C]: in ?

How I can get those *.dat fles, so I can convert it by your lua script? Or how to do it just with my OBJ files which I already have extracted?
I have exported OBJ files in AssetBundleExtractor by selecting those files by its type (mesh) then going to Plugins->export to .obj
thx

hhrhhr · February 2019

shironator wrote: »

In AssetBundleExtractor, the only function, which creates DAT file is "Export raw"

yes, this is right function.

However, this creates file with name like "unnamed asset-resources.assets-14252.dat", so I will lost all proper numbering like 0-0-1

mesh2obj.lua read "real" chunk name from *.dat and save OBJ with this name.

-- fn = "unnamed asset-resources.assets-9267.dat"
    r = assert(io.open(fn, "rb"))
--
    local sz = uint32()
    local name = str(sz) -- "Chunk-17-16-19"
--

--[[ write OBJ ]]--
    fn = name:sub(7) .. ".obj" -- "17-16-19.obj"
    local w = assert(io.open(fn, "w+b"))
--

shironator · February 2019

I see now. Thx, it works.

remove unnecessary (bottom at the level of three kilometers, side "walls"), clean (combine vertices, fix a bunch of irregular surfaces).

Im completely new to meshlab. Worked with 3dsmax in the past, but meshlab is too different for me. How to combine all layers into one mesh, so I can do changes to entire model at once? Tried to goodle it but found nothing. Then I can remove side walls effectively, because now, I must select layer, then select vertices, then delete.

hhrhhr · February 2019

I don't like video guides, but English is absolutely not my native language, so it will be easier for me to record a sequence of actions in the form of a video clip. Give me some time and i will do it...

hhrhhr · February 2019

this is link to youtube:

I missed a couple of things there, but in general it should be clear.

shironator · February 2019

Thanks you very much

Maps in Game's folder

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