Blocking Volumes

From RoboBlitz Editor Wiki

Blocking volumes are volumes which prevent objects from passing through them. They can be used as invisible walls or to add unique colliion to a static mesh.

Checking and Objects Pre-Existing Collision

I want to make a giant Fancake decoration in my level, and I want objects to be able to move through the fan but not through the rim. First I checked out the collision on the Fancake model to see if it would already work like I wanted. To do this I placed my static mesh and then typed nxvis collision into the console during a PIE session. I looked at the static mesh and it looks like this:

The Orannge lines around the fancake tell me that the fancake collision is just one solid octagon, so nothing is going to go through the fan. I guess I'll have to fake the collision with blocking volumes (I could just redo the static meshes' collision, but I'd rather not edit any packages, so blocking volumes are going to be my solution.)

To do this, we need to disable the fancakes collision. In the properties of the fancake static mesh I went to the CollisionComponent in the Collision section. Under the Collision subsection I unchecked BlockActors CollideActors and BlockRigidBody. Now you can drive right through the mesh. Now we're ready to put in some blocking volumes.

Placing Some Blocking Volumes

Placing blocking volumes works just like adding BSP or placing RVolumes. Shape and size your brush to the area you'd like to block. Right click on the brush and select Add Volume or right click on the Add Volume icon and select Blocking Volume.

I played around with some different brush shapes and generally did a sloppy job but it works, and that's what counts. ;)

If you're curious how I made those ramp shaped volumes at the bottom, I used Geometry Mode.