Channels & Responses
Every "why does my trace hit nothing" or "why does my character walk through a wall" bug traces back to
Traces & Overlaps
Line traces, sweeps, and overlaps are how gameplay code asks the world a question — "what's in front of
Chaos Physics Basics
Chaos is Unreal 5's physics and destruction engine, replacing PhysX. Most gameplay code never calls into
Constraints & Simulation
A single simulating rigid body falls, bounces, and rolls, but it can't hinge, swing on a chain, or hold a
Damage & Hit Handling
Collision and physics tell you that something touched, but they don't know what "damage" means — that's