Physics volumes on any Blueprint actor, shaped in your own viewport, and the first ones that can ignore actors by class or tag.

Documentation

You can find plugin docs here, along with docs for all other plugins i made.

Information

Unreal's physics volumes are the only thing that makes a Character swim, changes the gravity a movement component reads, or applies fluid friction and terminal velocity. They are also BSP brush actors, so they can only be dropped into a level. A modular pool piece, a lift shaft, an updraft or a low-gravity pocket has to ship as a Blueprint plus a separate volume kept in sync by hand. The stock volume affects everything that touches it. There is no way to say "this water does not apply to the boat".

Blueprint Physics Volume fixes both

Add a Physics Volume Box, Sphere or Capsule to any actor from the Add Component button and size it in the same viewport as everything else, the wireframe you drag is the volume. Then tell it which actors it applies to.

Ignore what you choose.

Name the classes the volume should skip, with or without their subclasses, or match on actor tags for rules a class list cannot express. Or invert it, and have the volume touch nothing but what you list. A skipped actor falls through to the next volume by priority, exactly as if yours were not there.

Gravity that is yours

Scale the world's gravity or replace it outright, per volume. The engine's own volume cannot do this at all.

Water that behaves

Characters swim, and immersion depth is real, they bob at the surface instead of being treated as fully submerged.

Events you can reach

On Actor Entered Volume and On Actor Left Volume, already filtered. The engine's equivalents are empty C++ virtuals no Blueprint can see.

Change it during play

Flip the filter, the priority, the gravity or the whole volume off mid-game and it applies immediately, with nothing needing to move first.

Works on any actor class, Characters and Pawns included. Multiplayer ready. No other plugins required, and nothing is written into your maps. A level-placeable version is included for when you want one in the level rather than on a prop.

Features

• Box, Sphere and Capsule physics volume components for any Blueprint actor

• Actor filter by class and by tag, blocking or allowing, with subclass matching

• Per-volume gravity: scale the world's, or set it absolutely

• Water volumes with correct immersion depth

• Blueprint enter and leave events, filtered

• Full runtime Blueprint API

• Level-placeable Filtering Physics Volume actor

• Settings replication for multiplayer