I built a circular walkway in Blender that I want to use in Ue5.4. To optimize, I prefer not use “use Complex as simple” collision in Ue5. Instead I created a simplified version of the walkway in Blender to use as a custom collision in Ue5. See pics attached, The purple circular walkway is the original mesh in Blender. The White circular walkway is the simplified collision mesh. I named the collision mesh UCX_originalmeshname and export both into Unreal via .fbx. When I look at the mesh in Unreal it shows the simple collision as extending out the circular walkway. The collision doesnt follow the shape of the walkway. Please see attachment. Anybody tell me where I’m going wrong?
Look up what convex means.
That mesh hull isn’t convex.
You need at a minimum 2 parts. Better if 4.
UCX collision has to be convex.
If I get what you’re going for, you want to use the complex collision of the simplified mesh. To do that you need to use the simplified mesh as a LOD mesh for the base mesh, use that LOD index as the ‘LOD For Collision’ in the Static Mesh settings, and enable complex collision (or use Complex as Simple).
Thanks for the feedback. This worked, I had to split up the mesh into 16 separate pieces to get a nice collision. Thanks again.
I’m having issues with the walls. So when I split up with circular floors into multiple pieces for custom collision, it works fine, but as soon as try the same workflow for a circular wall I get the below results. Any idea?
Not really. Bad hulls or the hulls are not being imported?
nice one, thanks, had to remodel the custom collisions and it worked fine
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