Fallout 4

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luxor8071

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luxor8071

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About this mod

This is a small and hopefully simple guide on how to use FO4LODGen to generate LOD for objects like buildings, trees and terrain to improve the level of detail.

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FO4LODGen - A Guide on how to generate LOD
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This is a small and hopefully simple guide on how to use FO4LODGen to generate LOD 
for objects like buildings, trees and terrain to improve the level of detail.

First of all, a few tools and resources that we need:
-xLODGen
-NeuraLOD - only the resource file
-Luxor's Far Harbor HQ Tree LOD
-FO4LODGen Resources
-Archive2 (comes with the Creation Kit)
-Gimp or Photoshop (optional)

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latest xlodgen download here:
https://forum.step-project.com/topic/13451-xlodgen-terrain-lod-beta-67-for-fnv-fo3-fo4-fo4vr-tes5-sse-tes5vr-enderal/
FO4LODGen Resources here:
https://mega.nz/file/BZhlVCAJ#s-GqqbnJlZDvCLPiRw1Wm1EWGqMQCuh4CR8Zzn8POM4
NeuraLOD Resource file here:
https://www.nexusmods.com/fallout4/mods/38872
Luxor's Far Harbor HQ Tree LOD here:
https://www.nexusmods.com/fallout4/mods/48972

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First download xLODGen and unzip it.
Now open the xLOGEN folder and you will see two exe files in it.
xLODGen and xLODGenx64. change the name of the xLODGenx64 to FO4LODGenx64. Finished for now.
Now install the FO4LODGen Resources, NeuraLOD Resource file 
and the Luxor's Far Harbor HQ Tree LOD Package with your mod manager.
One more info: Delete the FO4LODGen-HighTrees esp. 
This plugin is buggy and I had some problems with it.
Tip:
if you are using environment and landscape mods like Landscape Overhaul HD which comes with it's own LOD textures, open the ba2 archive and extract the LOD folder into your game folder. this overwrites all other LOD textures with the correct textures.

Now start FO4LODGenx64 and wait until all plugins are loaded.
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you can now see this window:




We now want to generate LOD for the main game and the DLC's.
we also want to generate terrain LOD.
activate the four worldspaces in the left window as shown in the picture.
In the right window activate objects LOD, build atlas and then terrain LOD. Change atlas size to 4096x4096, 
max texture size to 512, compression diffuse DXT 5, normal BC7 max and specular DXT1. default alpha treshold: 128.
for far harbor we have to change the max texture size to 1024.




Far Harbor setting:


now about the level of detail for the levels. we have 4 different ones. LOD4, LOD8, LOD16 and LOD32.
We change the quality for LOD4 to 8, for LOD8 to 14, LOD16 to 20 and for LOD32 to 25.
activate terrain LOD, enable build meshes, build diffuse and build normal. optimize unseen to on and activate protect borders.
compression for the terrain textures:
diffuse DXT1 and for the normalmaps BC7 quick.
all other settings remain as they are.







after you have made all the settings, click on generate. 
this process will take a while as the tool now has to generate tens of thousands of objects and textures. 
so don't get impatient. take a coffee break or something else.
now to the possible question why I have not changed the output path for all the LOD files.
well, i save the time not having to generate everything in a separate folder.
after FO4LODGen is done with everything, start the game and check if everything is ok.

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You can find all terrain meshes in the Fallout 4 \ Data \ Meshes \ Terrain folder and all 
objects and terrain LOD textures in the Fallout 4 \ Data \ Textures \ Terrain folder.
if you are satisfied with the result you can pack all these files, meshes and textures, as ba2 archives.

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you need the tool Archive2 for this.
make two new folders. rename them to meshes and textures.
now go to the Fallout 4 \ Data \ meshes folder and cut out the terrain folder.
put the terrain folder in the new created meshes folder.
do the same with the texture folder. go to the Fallout 4 \ Data \ textures folder and cut out the Terrain folder. 
put the terrain folder in the new created textures folder.





if you are familar with GIMP or photoshop (after generated the objects LOD textures), open the
objects. dds texture (for example DLC03FarHarbor.Objects.dds) and resave it without generating mimaps.
do that with all other objects.dds textures.
these makes your tree and objects LOD even more high detailed.
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now start the tool Archive2. create a new archive, format: general and add the meshes folder with the terrain meshes. 
save it as MyLOD - Main. create a new archive. format: DDS and add the textures folder with the terrain textures. 
save the archive as MyLOD - Textures. what you need now is a dummy esp plugin so that the game loads your ba2 archives. 
I have uploaded an empty dummy plugin (marked as esl) for you.

should error messages occur when packing with Archive2 (contains features not supported by the archiver), reset the settings for the LOD levels to the standard settings. LOD4 - 10, LOD8 - 15, LOD16 - 20 and LOD32 - 25 and change the file format for terrain LOD normal to DXT5. delete both folders, textures terrain and meshes terrain and start over.
As a reminder, terrain LOD is still experimental.

some people having issues to generate terrain LOD. so i provide you a full Set (under optional files). you have only to generate the objects LOD meshes and textures.
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Now pack MyLOD - Main, MyLOD - Textures and the MyLOD esp plugin with winrar or another packing tool into an archive. 
call it MyLOD. then manually add it to your mod manager and activate it. the plugin should be near the end of your load order.
the load order of all FO4LODGEN plugins + your plugin should look like this:




finished. that's it already.
enjoy now your new high detailed LOD.