LoD terrain

[Haoris]

@ddvlost;333643

Hi,
From 4.8 generate sub-level LOD requires Simplygon only for merging static meshes. So when Simplygon is not installed - all actors (except landscapes) will be ignored and removed from generated sub-level. Details percentage works only for static meshes, we have renamed it to ‘Static Mesh Details Percentage’ in 4.9 to reduce confusion. Landscape has his own settings for simplification ‘Landscape Export LOD’. By default it exports same landscape LOD which is specified in landscape actor details ’ LOD Level’. But you can override it to another specific LOD number. Landscapes have LODs from 0 to 7.

I need help with this because i’m actualy creating LODs for my landscape but I don’t understand what “Landscape Export LOD” really means, it’s not very clear and can’t find info in the documentation.
“Landscapes have LODs from 0 to 7” What means “0”, what means “7”? Is “0” the “lowestpoly” generated landscape or “7”? what’s the amount of poly reduction of each LOD Level?

[Maximum-Dev]

You only have to generate one lod for the landscape. The rest won’t work.

[Haoris]

@Maximum-Dev;594779

You only have to generate one lod for the landscape. The rest won’t work.

So what’s the point of having 7 différents LOD levels?
Anyway, that’s not my question. As ddvlost said, the “Landscape Export LOD” is the setting for simplification but how does it work as it’s not a percentage of simplification? If I generate a landscape with a “Landscape Export LOD” of 2, is it more lowpoly than a Landscape Export LOD of 3? And how many polys I will lose at “Landscape Export LOD: 3” ? 10%? 30%? 80%?

[anonymous_user_3714035a]

@Maximum-Dev

Hello ddvlost,

As much as I’m trying, the only thing I see is the default dynamic landscape LOD. It never streams to a simplified LOD neither when in editor nor when simulating or playing.
But maybe that’s just me.

Did you solve this? I have the same problem. Always LOD0 is displayed…