I have made a simple model in Blender and created 2 convex shapes for the collision
As you can see I have 3 objects: the portal itself (Portal) a collision box for its base (UCX_Portal_01) and a collision box for the arc (UCX_Portal_02)
When I export the scene as .fbx and import the model into UE4 I get this:
As you can see the collision of the base is simply working… however, the collision for the arc is CLOSING around the empty space where the Character is supposed to pass through.
that’s definitely NOT how UCX works.
your shape is not convex. [TABLE]
Convex objects can be any completely closed convex 3D shape. For example, a box can also be a convex object. The diagram below illustrates what is convex and what is not:
Simply brake up the shapes you currently have - click vertex press V to rip.
Merge to the same planar levels.
after it’s all separated press P and separate by loose parts which will split it into different UCX objects.
Then the import will import all the UCX objects as separate pieces allowing for the collision to work.
Any doorway should require a minimum of 2 UCX parts. The side pillars…
