Problem Creating Collision on a Sphere

Development World Creation
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Does anyone know how to get collision working for a sphere? The best I can find is autoconvex collision and it generates what you see in the second image. I set verts and hulls to . I tried every setting I could find in the mesh editor but nothing seemed to work.

I also tried using blender to create and export the collision, but me and that program do not get along. :stuck_out_tongue:

Please let me know if this level of collision is possible in the editor or whether I should try importing it. Thanks.

://img.photobucket.com/albums/v129/Decimatus/Answerhub/CollisionProblems.png

2

You could use “use complex as simple” collision, add a sphere collision or create a collision mesh →

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Thanks, but none of those work. When I use complex as simple I cannot see the collision outlines in the editor, but it has the same number of primitives listed as well as the same collision response in game as the auto convex…

Simple sphere collision is not accurate/smooth enough.

I was watching the video and trying to match his moves in blender, but of course I don’t even get the same copy/paste results with Ctrl+C and Ctrl+V. As in, Ctrl+V pops up some random menu that has nothing to do with pasting anything. It doesn’t make any sense. I really hate blender.

I basically need a collision sphere that can scale to 20,000+ unreal units across and still have a smooth & accurate collision response within single digit unreal units. At this point I am pretty sure I am going to have to import it the collision either way, so I will keep bashing my head into the keyboard with Blender. -_-

4

Anytime I name the mesh UCX_name as shown in step 2 of the video, the import fails. It doesn’t give any reason, just Import Failed.

It doesn’t seem hard to do. Name the mesh UCX_name in Blender, export it, and import it. I have tried overwriting my old mesh as he does in the video. Fails. I have tired just importing it by itself into the editor, fails. If I take UCX_ off the mesh name, it works fine, but obviously doesn’t have collision.

In blender, I take the starting cube, subdivide it into a sphere, and then export it with the proper name. Simply doesn’t work and there are only a handful of steps in this whole process. Pretty frustrating.

5

Hmm, strange, could you probably share your mesh so that I can test it :slight_smile:

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Someone was able to create a collision mesh with Maya that basically works, though still not quite accurate enough. Now we are running into a 500 triangle limit when trying to import a collision mesh. In Editor Collision Creation And Collision Mesh Feedback - Feedback for Unreal Engine team - Unreal Engine Forums

If you have any idea how to get around that, please let me know. Otherwise it seems like there may be some fundamental limitations on collision meshes in the engine.

Thanks!