Tree model is broken. Imported from blender (fbx)

Hello Guys! I’m an a beginner so i really don’t know what to say about it but it’s really weird. I made a tree in blender and in unreal engine looks like that the leaves are 100 times bigger than the tree itself. and it’s not even at the right direction. I also imported it to other 3D programs and there was no problem. Because the leaves are too big i uploaded an a non listed video about it (you will see the object without materials) :

Here is the blender and the fbx life:

Hi there!

Ok i found solutions to some of your problems.

The blender to unreal engine export with fbx is in general a very fragile process and leads to very confusing errors if you mess up just a single export parameter.

Some general settings you need to use in blender:

  • Set Blender Units to cm (use metric with 0.01 scale.) This fixed that your leafes were too large by a factor of 100.
    Unfortunately if you dont start your scene with this settings everything is downscaled to 0.01 of the original size.
    You have to then scale your mesh and armature again by 100 to have it in the original size.

97276-blender1.jpg

  • Apply every Rotation and Scale in Blender. After scaling and rotating objects in Blender these operations are stored as transformation. You have to apply them (ctrl+a > apply rotation &scale) so all rotations are set to (0,0,0) and all scales to (1,1,1). You can check this in the properties shelf (n). If you don’t do this it can lead to very confusing size and rotation errors especially when using animations with bones:

97278-blender2.jpg

After this general setup in Blender you need to export the mesh correctly:

  • Main:

Change the Axis to Z up, -Y forward to match the unreal engines axis. This fixed the error that your leafes were orientated in a wrong direction by 90 degree:

97279-fbx1.jpg

  • Geometries: Nothing changed.

  • Armatures:

Disable add leave bones. By default on the end of every last bone in a bone chain another ‘leave bone’ is added. This is not needed in the unreal engine and only generates corrupt skeletons with too many bones:

97295-fbx3.jpg

  • Animation: Nothing changed.

And at last here is an updated version of your blender and fbx files:
[solution.zip][5]

This should have fixed your problems. I hope it helps you.