I would like to have a sphere surrounding the game environment to act as an invisible wall. I considered a Blocking Volume but it doesn’t seem suitable.
What is the best approach to add a spherical invisible wall around the environment?
hi,
i made myself this slipped sphere in blender
added a simple sphere collision
unticked visible and removed it from the lightning channels
maybe you could use the plain ue sphere… i have not tried that 
made it like this because i use the flipped sphere later on… but how about an actor with only a sphere collision in it, that should work too
i hope this helps you 
cheers 
Thanks @AustrianMunzter. Your suggestion put me on the right track. Here is the solution that worked for me.
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In Blender create a UV Sphere and invert the normals. I named it SM_InvWall01.
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Duplicate the UV Sphere and name it UCX_SM_InvWall01. This will be the collision mesh.
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Select both meshes and export (FBX). In the Blender export settings use Geometry > Smoothing > Face. I also enabled Triangulate Faces, disabled Armature > Add Leaf Bones, and disabled Bake Armature.
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Import SM_InvWall01 into Unreal. This will automatically import the associated UCX although the UCX does not show up in the content browser, or anywhere else AFAIK.
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Drop the SM_InvWall01 into the world. Set it to have Complex Collision as Simple.
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At this point the collision should work as expected and form a spherical boundary to contain the environment. However, I found that collision failed when my Pawn collided at high speed. To fix this, I enabled Continuous Collision Detection (CCD) on the Pawn.
Screenshot of SM and UCX in Blender.
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