From cbc7e7bf85bfd9e916146b0ae4a605996c24720b Mon Sep 17 00:00:00 2001 From: Robert Adams Date: Wed, 21 Nov 2012 16:31:23 -0800 Subject: BulletSim: Make avatar capsule so it is not circular. Simple attempt to make avatars better shaped. Replace parameter 'avatarCapsuleRadius' with 'avatarCapsuleWidth' and 'avatarCapsuleDepth'. More tweeking to avatar height calculation. A little better but short avatar's feet are above the terrain and tall avatar's feet are a little below the ground. --- .../Region/Physics/BulletSPlugin/BSCharacter.cs | 24 +++++++++++++++------- OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs | 4 +++- OpenSim/Region/Physics/BulletSPlugin/BSScene.cs | 18 +++++++++------- .../Physics/BulletSPlugin/BSShapeCollection.cs | 9 ++++---- .../Physics/BulletSPlugin/BSTerrainManager.cs | 2 +- .../Region/Physics/BulletSPlugin/BulletSimAPI.cs | 3 ++- 6 files changed, 39 insertions(+), 21 deletions(-) (limited to 'OpenSim') diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs index 799211e..e2aa41e 100644 --- a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs +++ b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs @@ -82,7 +82,13 @@ public sealed class BSCharacter : BSPhysObject { _physicsActorType = (int)ActorTypes.Agent; _position = pos; + + // Old versions of ScenePresence passed only the height. If width and/or depth are zero, + // replace with the default values. _size = size; + if (_size.X == 0f) _size.X = PhysicsScene.Params.avatarCapsuleDepth; + if (_size.Y == 0f) _size.Y = PhysicsScene.Params.avatarCapsuleWidth; + _flying = isFlying; _orientation = OMV.Quaternion.Identity; _velocity = OMV.Vector3.Zero; @@ -175,8 +181,7 @@ public sealed class BSCharacter : BSPhysObject get { // Avatar capsule size is kept in the scale parameter. - // return _size; - return new OMV.Vector3(Scale.X * 2f, Scale.Y * 2f, Scale.Z); + return _size; } set { @@ -614,14 +619,19 @@ public sealed class BSCharacter : BSPhysObject // The 'size' given by the simulator is the mid-point of the avatar // and X and Y are unspecified. - OMV.Vector3 newScale = OMV.Vector3.Zero; - newScale.X = PhysicsScene.Params.avatarCapsuleRadius; - newScale.Y = PhysicsScene.Params.avatarCapsuleRadius; + OMV.Vector3 newScale = size; + // newScale.X = PhysicsScene.Params.avatarCapsuleWidth; + // newScale.Y = PhysicsScene.Params.avatarCapsuleDepth; // From the total height, remove the capsule half spheres that are at each end // The 1.15f came from ODE. Not sure what this factors in. - newScale.Z = (size.Z * 1.15f) - (newScale.X + newScale.Y); - Scale = newScale; + // newScale.Z = (size.Z * 1.15f) - (newScale.X + newScale.Y); + + // The total scale height is the central cylindar plus the caps on the two ends. + newScale.Z = size.Z + (Math.Min(size.X, size.Y) * 2f); + + // Convert diameters to radii and height to half height -- the way Bullet expects it. + Scale = newScale / 2f; } // set _avatarVolume and _mass based on capsule size, _density and Scale diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs index 2657e4b..5d16bbf 100644 --- a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs +++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs @@ -93,7 +93,7 @@ public sealed class BSPrim : BSPhysObject _physicsActorType = (int)ActorTypes.Prim; _position = pos; _size = size; - Scale = new OMV.Vector3(1f, 1f, 1f); // the scale will be set by CreateGeom depending on object type + Scale = size; // the scale will be set by CreateGeom depending on object type _orientation = rotation; _buoyancy = 1f; _velocity = OMV.Vector3.Zero; @@ -154,6 +154,8 @@ public sealed class BSPrim : BSPhysObject public override OMV.Vector3 Size { get { return _size; } set { + // We presume the scale and size are the same. If scale must be changed for + // the physical shape, that is done when the geometry is built. _size = value; ForceBodyShapeRebuild(false); } diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs index 0e73d04..27a78d1 100644 --- a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs +++ b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs @@ -1185,14 +1185,18 @@ public sealed class BSScene : PhysicsScene, IPhysicsParameters (s,cf,p,v) => { s.m_params[0].avatarRestitution = cf.GetFloat(p, v); }, (s) => { return s.m_params[0].avatarRestitution; }, (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarRestitution, p, l, v); } ), - new ParameterDefn("AvatarCapsuleRadius", "Radius of space around an avatar", - 0.37f, - (s,cf,p,v) => { s.m_params[0].avatarCapsuleRadius = cf.GetFloat(p, v); }, - (s) => { return s.m_params[0].avatarCapsuleRadius; }, - (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarCapsuleRadius, p, l, v); } ), + new ParameterDefn("AvatarCapsuleWidth", "The distance between the sides of the avatar capsule", + 0.6f, + (s,cf,p,v) => { s.m_params[0].avatarCapsuleWidth = cf.GetFloat(p, v); }, + (s) => { return s.m_params[0].avatarCapsuleWidth; }, + (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarCapsuleWidth, p, l, v); } ), + new ParameterDefn("AvatarCapsuleDepth", "The distance between the front and back of the avatar capsule", + 0.45f, + (s,cf,p,v) => { s.m_params[0].avatarCapsuleDepth = cf.GetFloat(p, v); }, + (s) => { return s.m_params[0].avatarCapsuleDepth; }, + (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarCapsuleDepth, p, l, v); } ), new ParameterDefn("AvatarCapsuleHeight", "Default height of space around avatar", - // 1.5f, - 2.140599f, + 1.5f, (s,cf,p,v) => { s.m_params[0].avatarCapsuleHeight = cf.GetFloat(p, v); }, (s) => { return s.m_params[0].avatarCapsuleHeight; }, (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarCapsuleHeight, p, l, v); } ), diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs b/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs index a53ad6e..869735c 100755 --- a/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs +++ b/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs @@ -525,9 +525,6 @@ public sealed class BSShapeCollection : IDisposable // release any previous shape DereferenceShape(prim.PhysShape, true, shapeCallback); - // Bullet native objects are scaled by the Bullet engine so pass the size in - prim.Scale = prim.Size; - BulletShape newShape = BuildPhysicalNativeShape(prim, shapeType, shapeKey); // Don't need to do a 'ReferenceShape()' here because native shapes are not shared. @@ -547,12 +544,13 @@ public sealed class BSShapeCollection : IDisposable nativeShapeData.Type = shapeType; nativeShapeData.ID = prim.LocalID; nativeShapeData.Scale = prim.Scale; - nativeShapeData.Size = prim.Scale; + nativeShapeData.Size = prim.Scale; // unneeded, I think. nativeShapeData.MeshKey = (ulong)shapeKey; nativeShapeData.HullKey = (ulong)shapeKey; if (shapeType == PhysicsShapeType.SHAPE_CAPSULE) { + // The proper scale has been calculated in the prim. newShape = new BulletShape( BulletSimAPI.BuildCapsuleShape2(PhysicsScene.World.ptr, 1f, 1f, prim.Scale) , shapeType); @@ -560,6 +558,9 @@ public sealed class BSShapeCollection : IDisposable } else { + // Native shapes are scaled in Bullet so set the scaling to the size + prim.Scale = prim.Size; + nativeShapeData.Scale = prim.Scale; newShape = new BulletShape(BulletSimAPI.BuildNativeShape2(PhysicsScene.World.ptr, nativeShapeData), shapeType); } if (newShape.ptr == IntPtr.Zero) diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs index 097cd3e..71fca33 100755 --- a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs +++ b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs @@ -308,7 +308,7 @@ public sealed class BSTerrainManager { PhysicsScene.Logger.DebugFormat("{0} Terrain for {1}/{2} created with {3}", LogHeader, PhysicsScene.RegionName, terrainRegionBase, - PhysicsScene.Params.terrainImplementation); + (BSTerrainPhys.TerrainImplementation)PhysicsScene.Params.terrainImplementation); BSTerrainPhys newTerrainPhys = null; switch ((int)PhysicsScene.Params.terrainImplementation) { diff --git a/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs b/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs index e218053..4647c2d 100644 --- a/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs +++ b/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs @@ -291,7 +291,8 @@ public struct ConfigurationParameters public float avatarStandingFriction; public float avatarDensity; public float avatarRestitution; - public float avatarCapsuleRadius; + public float avatarCapsuleWidth; + public float avatarCapsuleDepth; public float avatarCapsuleHeight; public float avatarContactProcessingThreshold; -- cgit v1.1