How to deal with big aerial texture for landscape mapping

Development World Creation
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1

Hi everyone,

I’m starting to develop new projects (landscape visualization) on UE. I’m working on big real landscape based on real data and as big as 45km² !

I’ m modeling mainly in blender where I can import big aerial texture as large as 25 000*25 000 pixels.

But when It comes to load those textured mesh in UE (I do an export as Fbx), I can import the mesh in UE but not the material. And when I want to import the texture in UE, I get an error.

So I read that I cannot import those kind of texture resolution in UE, but what Is the workaround to load big aerial mals ?

Thanks in advance for your ideas, expertise, advices…

Have a nice day.

Eco.

2

Hi

Maybe you should try using a landscape actor and using a height map instead of importing fbx (max resolution is 8192 though). Regarding the textures, you could split the textures up into 4 smaller ones and in the material in Unreal use the uv-mapping to realign them.
Also should this be able to run in realtime or not?

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Hi,
Thanks for your answer, and for your soutions…It’s a pity that unreal cannot import this kind of texture when Twinmotion can…

Yes, this should be able to run in realtime.

I’ll try your solution.

Regards.

1 Like
4

I’m not too familiar with this tool, but you should look into the world composition tool. i think it allows you to make bigger landscapes, instead of just using a landscape actor. It should also make this run in realtime hopefully :slight_smile: