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Using world composition, how do I add level/landscape LODs without Simplygon?

It looks like you can easily generate LODs for landscapes from the Level Details screen via Simplygon, but I can't find any information on how to set these up without Simplygon.

So, two questions:

  1. What is the best way to export the landscape from a given level as a mesh?

  2. How do I put it back in as a LOD level as referred to here under LODSettings: https://answers.unrealengine.com/storage/temp/11191-level+details.jpg

This question touched on the issue in the comments, but there weren't any answers provided. The relevant documentation doesn't address any methods of handling this other than using Simplygon.

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asked Sep 11 '14 at 12:30 PM in Using UE4

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andrewm
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avatar image Positivity Feb 26 '15 at 04:22 PM

Hallo i would Like to Know where i need to Copy My LOD file so that World Composition would use it on my Map

i Have really Simple Setup .. Main map with Skybox and Clouds , then i have Map1, Map2, Map3 , Map4 I Imported the LOD fail with name Map2_LOD1 , i placed it in same Folder where is all my Maps (Map1, Map2, Map3, Map4) but nothing happaning .. i set the distance and so ..and test Play but no LOD shows up just level Streaming where Map2 unloads and loads on distance

Can Someone Explain where i need to Add this LOD file so that my Map2 would change LOD not Completely disappear on Level streaming.

I would Love to have Step by Step explenation ... for World Composition

Thnx

avatar image ddvlost STAFF Feb 27 '15 at 11:06 AM

Hi,

Yes, you should put Map2_LOD1 into the same folder as Map2. Then you need to setup LOD streaming distance like in this screen.

alt text

avatar image Positivity Feb 27 '15 at 11:43 AM

Hey man :) I did it like you are showing only i dont have that Generate button ..as i dont have Simplpoly. but the thing is I made Static mesh with name_LOD1 not the actual map.

But tinkering more and more i Found out that you Need to make a New Map not a Static mesh to have that _LOD1 information

I would suggest to add to Documentation that .. its not the Static mesh file what needs to have that _LOD1 name but a new Map with that static mesh inside in that Map to LOD work ..

I hope i will be able to make short Video tutorial as i see that ppl have problem to understand this topic.

thnx for your response

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Hi,

Exporting landscape to a static mesh does not require Simplygon, but unfortunately there is currently no UI to do so. You could modify FWorldTileCollectionModel::GenerateLODLevels function and remove code that checks Sympligon availability. If you need to export only landscapes that should work for you, as Simplygon is required only for static mesh simplifying.

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answered Sep 17 '14 at 07:46 PM

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ddvlost STAFF
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