I imported a test mesh of a house from 3DS Max to UE4. When I drag and drop the mesh into the scene and hit play, I cant go in through the door as if an invisible wall is blocking the way. Sorry if this is a stupid question, but just wondering if anyone else has encountered this problem? I’m new to Unreal and just wanted to figure out importing before I move on. Any help would be greatly appreciated!
The collision is not setup properly.
Go into the mesh editor for the static mesh (double click it in the Content Browser), go to the Collision tab, and select Auto Convex Collision. In the new box that pops up, you can increase hulls and vertices for more accurate collision. You’ll be able to see when it’s complex enough to allow for movement “inside” of it.
Preferably, create your collision mesh in 3DS max. That almost always, for complex shapes that need specific collision, results in better processing efficiency
Here’s documentation on it. Should you go this route, you’ll wanna create several convex hulls in Max that aren’t intersecting, keeping it as simple as possible for your collision needs. You usually don’t need collision meshes to fit your mesh exactly at every point.
Thanks very much for your reply, this is all great info. I’ll do my homework and hopefully won’t have any problems in the future. Thanks again 
No problem! If you don’t mind, accept the answer so others with similar issues can find it easily. Have fun with your game!
Cheers. Done.
Immensely helpful question and resolving answer.
Thank you so much.
No problem. I found creating custom collision in 3DS Max using the UCX_objectName to be very effective. Its also less taxing when imported to UE4.
No problem. I found creating custom collision in 3DS Max using the UCX_objectName to be very effective. Its also less taxing when imported to UE4. Glad you found it helpful though.
brill info as worked on my problem thank you
Hey, it’s a noob from the future. Things sure have changed since '15, what a simpler time it was.
Thank’s for the answer. Helped immensely in my VR project.
I am another traveler from the future. In 2019, it seems there is no Auto Convex Collision anymore.
In the collision tab , you have to choose “Use complex Collision as simple”.
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