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BulletSim: add VehicleInertiaFactor to allow modifying inertia. 

Another parameter for vehicle operation tuning.
Default to <1,1,1> which means nothing is different under normal use.
user_profiles
Robert Adams 2013-05-24 16:24:16 -07:00
parent 4979940def
commit 5f1f5ea5ab
2 changed files with 5 additions and 1 deletions
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3
OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs
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@ -617,7 +617,8 @@ namespace OpenSim.Region.Physics.BulletSPlugin
// Vehicles report collision events so we know when it's on the ground
m_physicsScene.PE.AddToCollisionFlags(ControllingPrim.PhysBody, CollisionFlags.BS_VEHICLE_COLLISIONS);
ControllingPrim.Inertia = m_physicsScene.PE.CalculateLocalInertia(ControllingPrim.PhysShape.physShapeInfo, m_vehicleMass);
Vector3 inertia = m_physicsScene.PE.CalculateLocalInertia(ControllingPrim.PhysShape.physShapeInfo, m_vehicleMass);
ControllingPrim.Inertia = inertia * BSParam.VehicleInertiaFactor;
m_physicsScene.PE.SetMassProps(ControllingPrim.PhysBody, m_vehicleMass, ControllingPrim.Inertia);
m_physicsScene.PE.UpdateInertiaTensor(ControllingPrim.PhysBody);

3
OpenSim/Region/Physics/BulletSPlugin/BSParam.cs
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@ -148,6 +148,7 @@ public static class BSParam
public static float VehicleRestitution { get; private set; }
public static Vector3 VehicleLinearFactor { get; private set; }
public static Vector3 VehicleAngularFactor { get; private set; }
public static Vector3 VehicleInertiaFactor { get; private set; }
public static float VehicleGroundGravityFudge { get; private set; }
public static float VehicleAngularBankingTimescaleFudge { get; private set; }
public static bool VehicleDebuggingEnable { get; private set; }
@ -583,6 +584,8 @@ public static class BSParam
new Vector3(1f, 1f, 1f) ),
new ParameterDefn<Vector3>("VehicleAngularFactor", "Fraction of physical angular changes applied to vehicle (<0,0,0> to <1,1,1>)",
new Vector3(1f, 1f, 1f) ),
new ParameterDefn<Vector3>("VehicleInertiaFactor", "Fraction of physical inertia applied (<0,0,0> to <1,1,1>)",
new Vector3(1f, 1f, 1f) ),
new ParameterDefn<float>("VehicleFriction", "Friction of vehicle on the ground (0.0 - 1.0)",
0.0f ),
new ParameterDefn<float>("VehicleRestitution", "Bouncyness factor for vehicles (0.0 - 1.0)",