Creating arbritrary physics systems via Reality Builder

Tutorial Author:Clifton Poli

NetRigidBody

• Tower of Tokamak:
  

• Tower of Tok round 2:
  

Introduction

The NetRigidBody is the basic physics object in Reality. With this you can put realistic physics on objects using various primitives, and tweak their settings within Reality Builder. To make an existing prefab in your scene into a NetRigidBody, select the prefab then select the NetRigidBody script in the class list and click the change button, this will magically transform your prefab into a NetRigidBody!

Properties

• AllowInclusionExclusionLists
  • Whether the lighting on this NetRigidbody acknowledges Lights' Inclusion/Exclusion Lists.

• BoundingBoxScale
  • % scale of Model BBox to use for rigid body

• CollidesRays
  • True/false, this determines whether the object recieves collisions from raychecks i.e. weapons fire.

• EnablePhysicsInEditor
  • Enable rigid body physics for this object within Reality Builder.

• Friction
  • 0.5 for medium friction

• ImpactSoundSet
  • Sound set used upon collision impact

• Mass
  • Mass of the Rigid Body.

• Restitution
  • 0.7 for medium bouncyness.

• RigidBodyType
  • Primitive type of the Rigid Body. Box, Sphere, Cylinder, or Capsule.

ChainedLightEntity

Introduction

The ChainedLightEntity script simulates a chain (which makes use of the particle system) which is attached too the prefab. To make an existing prefab in your scene into a ChainedLightEntity, select the prefab then select the ChainedLightEntity script in the list and click the change button.

Properties

• Editor Physics
  • Enables rigid body physics for this object within Reality Builder. To refresh physics state with new values when physics are already enabled, set this to False then True again.

• Swing Magnitude
  • The magnitude of the impulse that the chain swings with.

• Swing Period
  • The period the chain's swinging.

• Light Name
  • Light that this system binds too.

• Shadow Name
  • Shadow Projector that this system binds too.

AttachedBody

Introduction

The Attachedbody script allows the user to create Tokamak objects in the scene that are not activated until they have been impacted and threshold broken from something like a vehicle or weapons fire. This is demonstrated in the RuntimeDemo on the lamp posts and fence pieces. To make an existing prefab in your scene into a AttachedBody, select the prefab then select the AttachedBody script in the list and click the change button.

Properties

• AllowInclusionExclusionLists
  • Whether the lighting on this NetRigidbody acknowledges Lights' Inclusion/Exclusion Lists.

• AttachedLightName
  • Name of a Light that will turn off when this AttachedBody is detached.

• BoundingBoxScale
  • % scale of Model BBox to use for rigid body

• BreakageImpulseThreshold
  • Amount of impulse (Newtons * Seconds) required to dislodge the AttachedBody

• CollidesRays
  • Determines if the object recieves raycheck collision or not.

• EnablePhysicsInEditor
  • You guessed right!

• Friction
  • 0.5 for medium friction.

• ImpactSoundSet
  • Sound set used upon collision impact.

• Mass
  • The mass of the AttachedBody.

• Restitution
  • 0.7 for medium bouncyness.

• RigidBodyType
  • Primitive type of the Rigid Body.