Upgraded to Bullet 2.74. The upgrade introduced a few bugs, which need to be fixed before Blender 2.49.

In particular, the Bullet vehicle seems broken, and some soft-body demos don't work.
No new features or benefits are added yet, but a few improvements are planned before Blender 2.49 release.

Please update the build systems, and add those 3 files:
extern/bullet2/src/BulletCollision/CollisionDispatch/btActivatingCollisionAlgorithm.cpp
extern/bullet2/src/BulletCollision/CollisionDispatch/btGhostObject.cpp
extern/bullet2/src/BulletCollision/CollisionShapes/btConvexPointCloudShape.cpp

I'll watch the Blender mailing list, in case this commit causes some issues.

1 files changed, 28 insertions, 14 deletions

diff --git a/extern/bullet2/src/BulletCollision/CollisionShapes/btConvexHullShape.h b/extern/bullet2/src/BulletCollision/CollisionShapes/btConvexHullShape.h
index 4773de2dc51..baf074be6c3 100644
--- a/extern/bullet2/src/BulletCollision/CollisionShapes/btConvexHullShape.h
+++ b/extern/bullet2/src/BulletCollision/CollisionShapes/btConvexHullShape.h
@@ -24,7 +24,7 @@ subject to the following restrictions:
 ///Bullet provides a general and fast collision detector for convex shapes based on GJK and EPA using localGetSupportingVertex.
 ATTRIBUTE_ALIGNED16(class) btConvexHullShape : public btPolyhedralConvexShape
 {
-	btAlignedObjectArray<btPoint3>	m_points;
+	btAlignedObjectArray<btVector3>	m_unscaledPoints;
 
 public:
 	BT_DECLARE_ALIGNED_ALLOCATOR();
@@ -33,23 +33,38 @@ public:
 	///this constructor optionally takes in a pointer to points. Each point is assumed to be 3 consecutive btScalar (x,y,z), the striding defines the number of bytes between each point, in memory.
 	///It is easier to not pass any points in the constructor, and just add one point at a time, using addPoint.
 	///btConvexHullShape make an internal copy of the points.
-	btConvexHullShape(const btScalar* points=0,int numPoints=0, int stride=sizeof(btPoint3));
+	btConvexHullShape(const btScalar* points=0,int numPoints=0, int stride=sizeof(btVector3));
 
-	void addPoint(const btPoint3& point);
+	void addPoint(const btVector3& point);
 
-	btPoint3* getPoints()
+	
+	btVector3* getUnscaledPoints()
+	{
+		return &m_unscaledPoints[0];
+	}
+
+	const btVector3* getUnscaledPoints() const
+	{
+		return &m_unscaledPoints[0];
+	}
+
+	///getPoints is obsolete, please use getUnscaledPoints
+	const btVector3* getPoints() const
 	{
-		return &m_points[0];
+		return getUnscaledPoints();
 	}
 
-	const btPoint3* getPoints() const
+	
+
+
+	SIMD_FORCE_INLINE	btVector3 getScaledPoint(int i) const
 	{
-		return &m_points[0];
+		return m_unscaledPoints[i] * m_localScaling;
 	}
 
-	int getNumPoints() const 
+	SIMD_FORCE_INLINE	int getNumPoints() const 
 	{
-		return m_points.size();
+		return m_unscaledPoints.size();
 	}
 
 	virtual btVector3	localGetSupportingVertex(const btVector3& vec)const;
@@ -57,7 +72,6 @@ public:
 	virtual void	batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const;
 	
 
-	virtual int	getShapeType()const { return CONVEX_HULL_SHAPE_PROXYTYPE; }
 
 	//debugging
 	virtual const char*	getName()const {return "Convex";}
@@ -65,11 +79,11 @@ public:
 	
 	virtual int	getNumVertices() const;
 	virtual int getNumEdges() const;
-	virtual void getEdge(int i,btPoint3& pa,btPoint3& pb) const;
-	virtual void getVertex(int i,btPoint3& vtx) const;
+	virtual void getEdge(int i,btVector3& pa,btVector3& pb) const;
+	virtual void getVertex(int i,btVector3& vtx) const;
 	virtual int	getNumPlanes() const;
-	virtual void getPlane(btVector3& planeNormal,btPoint3& planeSupport,int i ) const;
-	virtual	bool isInside(const btPoint3& pt,btScalar tolerance) const;
+	virtual void getPlane(btVector3& planeNormal,btVector3& planeSupport,int i ) const;
+	virtual	bool isInside(const btVector3& pt,btScalar tolerance) const;
 
 	///in case we receive negative scaling
 	virtual void	setLocalScaling(const btVector3& scaling);