Demo3D 2025 API Documentation
Demo3D Namespaces
Demo3D.Visuals Namespaces
Demo3D.Visuals
PhysicsEngine Class
PhysicsEngine Methods
AddGeometryProcessCollisionHandler Method
AddGeometryProcessContactHandler Method
AddPostCollideDelegate Method
AddRenderPoint Method
AddSensorDelegate Method
Clear Method
ClearAllRenderLabels Method
ClearAllRenderLines Method
ClearAllRenderPoints Method
ClearRenderLines Method
ClearRenderPoints Method
Collide Method
Collides Method
CountBodies Method
CountLoads Method
CreateApproximateCylinderGeometry Method
CreateBallSocketJoint Method
CreateBoxGeometry Method
CreateCompoundGeometry Method
CreateContactJoint Method
CreateConvexHullGeometry Method
CreateConvexHullGeometryByDecomposition Method
CreateCylinderGeometry Method
CreateFixedJoint Method
CreateGroup Method
CreateGroupList Method
CreateHingeJoint Method
CreateRigidBody Method
CreateRigidBodyProperties Method
CreateSimulationSensor Method
CreateSliderJoint Method
CreateSphereGeometry Method
CreateStaticBody Method
CreateStaticBodyProperties Method
CreateTriangleMeshGeometry Method
DestroyBody Method
DestroyGeometry Method
DestroyJoint Method
DestroySimulationSensor Method
DetectLoad Method
DisableCCD Method
EnableCCD Method
Export Method
FindCollisions Method
FrictionMaterial Method
IsDeflector Method
IsDeflectorBlocksSensors Method
IsDynamic Method
IsFirstContact Method
IsFloor Method
IsKinematic Method
IsLoad Method
IsSensor Method
IsStatic Method
IsStopBlade Method
IsTrigger Method
IsVehicle Method
KeepAwake Method
RemoveGeometryProcessCollisionHandler Method
RemoveGeometryProcessContactHandler Method
RemoveVisual Method
RenderLabel Method
RenderLine Method
RenderPoint Method
SetFrictionMaterialRecursive Method
UndetectLoad Method
WakeUp Method
WakeUpLoads Method
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PhysicsEngineIsFirstContact Method

Record the specified sensor and load as touching. The ProcessCollision(PhysicsCollision, Visual, PhysicsBody) method will be called with other=null when the contact is broken, and the first time the load is seen this method will return true.

Namespace:  Demo3D.Visuals
Assembly:  Demo3D.Core (in Demo3D.Core.dll) Version: 18.03.00
Syntax
C#
Copy
public bool IsFirstContact(
	Visual sensor,
	Visual load
)

Parameters

sensor
Type: Demo3D.VisualsVisual

[Missing <param name="sensor"/> documentation for "M:Demo3D.Visuals.PhysicsEngine.IsFirstContact(Demo3D.Visuals.Visual,Demo3D.Visuals.Visual)"]

load
Type: Demo3D.VisualsVisual

[Missing <param name="load"/> documentation for "M:Demo3D.Visuals.PhysicsEngine.IsFirstContact(Demo3D.Visuals.Visual,Demo3D.Visuals.Visual)"]

Return Value

Type: Boolean
True if this is the first contact, false otherwise.
See Also