Runtime Mesh Component

[Koderz]

@uw19;728701

I’m trying out the 4.16 plugin, but I’m having weird results when attempting to get collision up and running.

My goal is have the player generate the procedural mesh at runtime and when they are finished, allow them to interact with the mesh (grabbing, throwing, etc.) and have it simulate physics. My attempts at this:
1.) Create a simple box mesh and use ‘add collision convex mesh’ exactly like in your example template. The box falls extremely quickly then bounces into the stratosphere. No idea why.
2.) Create a simple box mesh and use ‘set mesh collision section’ and ‘set mesh section collision enabled’ currently has no effect. The object falls right through the floor.

Could this be a problem with the 4.16 update? Any help would be appreciated.

And thanks for the awesome work on the plugin! Cheers to all the hard work.

1. Sounds like a mass problem, have you altered the collision/gravity settings at all? If so what are they. Only other guess is if it started moving before convex cooked, but I doubt it since that version doesn’t have async cooking.
2. That’s expected. PhysX (The underlying physics engine in UE4) doesn’t support moving mesh collision, only static. There’s various reasons for this, but nothing can be done about that. Every movable object in the engine will be some combination of box/sphere/sphyl primitives or convex bodies, potentially multiple of any of those. For concave objects the engine generates a set of convex shapes to approximate it using V-HACD unless you import the collision hulls from an outside tool.