Exporting a Terrain into a Mesh

[sly steppe]

Hi, I would like to export my terrain into a mesh. (basically i do that yo lower or make heiger the terrain, also paint it)

[open socket]

You either need to write something to produce a mesh from the height data, export the height map + splat map and use that in 3d software like blender or try to use the GLTF package to export it

https://docs.unity3d.com/Packages/com.unity.cloud.gltfast@6.13/manual/index.html

[sly steppe]

does it preserve texture ? GLTF

[open socket]

it probably wont because terrain shaders use splat maps to draw textures

why do you need this though, your given reason is hard to understand

[remote hinge]

https://docs.unity3d.com/Packages/com.unity.terrain-tools@2.0/manual/toolbox-getting-started.html
You can export hightmaps and splatmaps using unity's official tool here, otherwise there's this asset I've used and it works pretty well:
https://assetstore.unity.com/packages/tools/terrain/mesh-terrain-editor-free-67758

[sly steppe]

deprecated does not work well

but i didn't try the first one ill try

[remote hinge]

it's deprecrated but I've used it with 6 urp recently for a mesh and it was fine

[sly steppe]

when i installed it each time i do something it says i have to pay

[sly steppe]

i want to create tiles to later on do WCF to generate a world

[open socket]

If terrain tools works use that. Looks to be updated too

[remote hinge]

It's just for heightmaps so if you are to import to to blender you need a tool to construct it from it, but otherwise if it's for another Unity project you can build it from it fine using the same tool

But then again you can just package the terrain asset anyway and export that instead

[open socket]

the terrain mesh changes detail based on distance so I presume a raw export with a tool such as GLTF will produce a shit result.

[sly steppe]

Finally i went with a custom editor tool that apply a noise to a plane and another script that scatter prefabs onto a plane

[open socket]

Great don't forget about optimisation. You can see the terrain component mesh adjustment if you enable wireframe/shaded wireframe

[sly steppe]

Do you think I can decrease the amount of vertices of a plane ? Probably but how ?

[open socket]

use pro builder or blender to make one

[sly steppe]

For LOD

I can’t at runtime ?

[open socket]

you would need a mesh as you desire
you could generate them at runtime but why bother?

[sly steppe]

Optimizations ?

Basically I’ll have like 250 planes

I’ll have a bunch of plane that are prefabs which contains piece of terrain and they will be placed with a WFC

[sly steppe]

So I should hide them at a certain distance and decrease the vertices no?

[open socket]

you can use the lod component to do the changing