Fix alignment in btSoftBody_getTetraVertexNormalData

Author: AndresTraks

BulletSharp/UnsafeNativeMethods.cs

@@ -308,7 +308,7 @@ public static extern IntPtr btIDebugDrawWrapper_new(IntPtr debugDrawGCHandle, In
 		[DllImport(Native.Dll, CallingConvention = Native.Conv)]
 		public static extern IntPtr btSoftBodyNodePtrArray_at(IntPtr obj, int index);
 		[DllImport(Native.Dll, CallingConvention = Native.Conv)]
-		public static extern IntPtr btSoftBodyNodePtrArray_set(IntPtr obj, IntPtr value, int index);
+		public static extern void btSoftBodyNodePtrArray_set(IntPtr obj, IntPtr value, int index);
 
 		[DllImport(Native.Dll, CallingConvention = Native.Conv)]
 		public static extern IntPtr btAlignedObjectArray_btVector3_new();

libbulletc/src/btSoftBody_wrap.cpp

@@ -3146,7 +3146,7 @@ int btSoftBody_getTetraVertexNormalData(btSoftBody* obj, btScalar* vertices)
 	int vertexCount = tetraCount * 12;
 
 	int i;
-	btVector3 c1, c2, c3, normal;
+	ATTRIBUTE_ALIGNED16(btVector3) c1, c2, c3, normal;
 	for (i = 0; i < tetraCount; i++) {
 		btSoftBody_Tetra* t = &tetraArray->at(i);
 		c1 = t->m_n[1]->m_x - t->m_n[0]->m_x;
@@ -3205,7 +3205,7 @@ int btSoftBody_getTetraVertexNormalData2(btSoftBody* obj, btScalar* vertices, bt
 	int vertexCount = tetraCount * 12;
 
 	int i;
-	btVector3 c1, c2, c3, normal;
+	ATTRIBUTE_ALIGNED16(btVector3) c1, c2, c3, normal;
 	for (i = 0; i < tetraCount; i++) {
 		btSoftBody_Tetra* t = &tetraArray->at(i);
 		c1 = t->m_n[1]->m_x - t->m_n[0]->m_x;