Question LOD groups for objects inside a fbx (Blender to Unity)

Hi everyone,

I have created a model with Blender that is composed by different static objects. Some of these objects need to have LOD because of high number of polygons. To simplify my case, I have created a simple model to show you. It is an fbx (created with Blender, as I said) that has the following tree when a prefab is created importing it:
ModelExample

Cylinder

Cylinder_LOD0
Cylinder_LOD1​

Sphere

Sphere_LOD0
Sphere_LOD1​

The problem is that Unity, automatically creates a LOD Group for "ModelExample" and it is working for the whole model at same time. If camera is close to ModelExample then Cylinder_LOD0 and Sphere_LOD0 are showed, and when the camera is far to ModelExample, Cylinder_LOD1 and Sphere_LOD1 are showed, both at same time.

I can solve the problem manually removing LOD Group from ModelExample and I creating one LOD Group for Cylinder and another for Sphere, adding manually also meshes LOD0 and LOD1 for each level.

For this simple model is not a problem to do it manullay, but it is annoying in a model with a lot of objects that need to have LOD.

Is there any way to do it automatically? Maybe I'm missing some nomenclature, project option or an option when I exported the model from Blender, but I was searching for a solution and I don't find anything.

Thanks in advance

 

I'm having the same issue, did you ever find a solution?

 

I'm in this problem as well....

I guess we have 2 options:
1) mighty do all by hand once
2) try to automate the U3D S***ty LOD import handling with an asset pre or postprocessor.....

For my own part, il will head the 1) because i'll handle everything, even if it's the heavy way.....

 

I basically gave up on the entire concept. For my building I just exported some door prefabs for instance and manually place them all over in the editor. It's very annoying having to basically do the work twice, but otherwise anything I try and create gets ruined on import.

 

finally, i made an mesh importer post processor that works like a charm

My only needs are that LOD1+ objects are parented to LOD0....

 

That's great, so far I've exported to (many) individual .fbx files in Blender. So I step through all the objects in the Blender scene, make low-poly copies of them, name them and export them right away. But when there are too many objects... Your solution is elegant!

 

can you share how you did this?