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BlueprintAPI > BlueprintAPI/Physics > BlueprintAPI/Physics/Components > BlueprintAPI/Physics/Components/PhysicsConstraint
Set the projection settings for use when projection is enabled. See SetProjectionEnabled. For ragdolls you usually require that ProjectionLinearAlpha and ProjectionAngularAlpha be zero. They are most useful for cosmetic chains etc. ProjectionLinearTolerance and ProjectionAngularTolerance are emergency error recovery settings and should only rarely affect the simulation. If the simulation is significantly affected by the Tolerance settings, it likely indicates a setup stability issue.
Target is Physics Constraint Component
Inputs
| Type | Name | Description |
|---|---|---|
| exec | In | |
| object | Target | |
| real | Projection Linear Alpha | Controls the semi-physical correction of linear error remaining after the joint solve. Will add energy into the system. Best for joint chains connected to a kinematic. |
| real | Projection Angular Alpha | Controls the semi-physical correction of angular error remaining after the joint solve. Will add energy into the system. Best for joint chains connected to a kinematic. |
| real | Projection Linear Tolerance | Linear errors above this will be corrected with a non-physical teleport. |
| real | Projection Angular Tolerance | Angular errors above this will be corrected with a non-physical teleport. |
Outputs
| Type | Name | Description |
|---|---|---|
| exec | Out |