I'm using hand tracking to detect collisions between fingertips and entities that I have placed in the scene. I'm using the .mixed environment.
However, I want to detect when a fingertip touches a real-world object such as a wall.
No matter what I try, I can't get the collision to fire. I'm using the SceneReconstructionProvider to give me world meshes, which I use to create ModelEntity objects to which I add a CollisionComponent with the shape of the object.
I can render the meshes just fine, but nothing I do seems to allow collisions to work.
Surely this is possible, what am I missing?
I found the solution here.
You need to allow static entities (i.e. the world mesh) to trigger collisions with kinematic entities (i.e. the fingertip entity). You do this by adding a physics simulation component to a parent entity (i.e. the root entity of your scene) and setting the appropriate collision option.
var physicsSim = PhysicsSimulationComponent()
physicsSim.collisionOptions.insert(.reportKinematicVsStatic)
contentEntity.components.set(physicsSim)