how to correctly import .wrl in blender? I basically know how to import this type of file (file-> import-> X3D Extensible) but when i do this with a wrl file i got from DSI Studio (Program to track brainfibres) the fibres show weird dark triangles. if i open the same file in windows' own 3D Builder app the fibres apper as nice as in DSI Studio (lack of color ignored)

So what do i do wrong? is blender the problem? could you suggest annother program to convert the wrl file to an fbx file? i want to use the 3d model for a game being developed in the unreal engine 4.

I put some images in for clarification. first is blender, second is windows 3d builder.

Hopefully someone can help me.
Thanks in advance.
Got it!

I have selected the model in blender, changed to from object to edit mode, then pressed ctrl + n and. after that on the lower left hand side appeared "Make Normals Consistent" with a checkbox "Inside". clicked that, exported as fbx, imported in ue4 and everything looks fine.

Thank you for your help!