Exemplo n.º 1
0
        public TriangleMeshObject(Game game, Model model, Matrix orientation, Vector3 position)
            : base(game, model)
        {
            body      = new Body();
            collision = new CollisionSkin(null);

            triangleMesh = new TriangleMesh();

            List <Vector3> vertexList = new List <Vector3>();
            List <TriangleVertexIndices> indexList = new List <TriangleVertexIndices>();

            ExtractData(vertexList, indexList, model);

            triangleMesh.CreateMesh(vertexList, indexList, 4, 1.0f);
            collision.AddPrimitive(triangleMesh, new MaterialProperties(0.8f, 0.7f, 0.6f));
            PhysicsSystem.CurrentPhysicsSystem.CollisionSystem.AddCollisionSkin(collision);

            // Transform
            collision.ApplyLocalTransform(new JigLibX.Math.Transform(position, orientation));
            // we also need to move this dummy, so the object is *rendered* at the correct positiob
            body.MoveTo(position, orientation);
        }
Exemplo n.º 2
0
        public HeightmapObject(Game game, Model model, Vector2 shift) : base(game, model)
        {
            Body      = new Body();
            Collision = new CollisionSkin(null);

            var heightMapInfo = model.Tag as HeightMapInfo;
            var field         = new Array2D(heightMapInfo.Heights.GetLength(0), heightMapInfo.Heights.GetLength(1));

            for (var x = 0; x < heightMapInfo.Heights.GetLength(0); x++)
            {
                for (var z = 0; z < heightMapInfo.Heights.GetLength(1); z++)
                {
                    field.SetAt(x, z, heightMapInfo.Heights[x, z]);
                }
            }


            Body.MoveTo(new Vector3(shift.X, 0, shift.Y), Matrix.Identity);

            Collision.AddPrimitive(new Heightmap(field, shift.X, shift.Y, heightMapInfo.TerrainScale, heightMapInfo.TerrainScale), new MaterialProperties(0.7f, 0.7f, 0.6f));

            PhysicsSystem.CurrentPhysicsSystem.CollisionSystem.AddCollisionSkin(Collision);
        }
Exemplo n.º 3
0
        List <Vector3> heightVertices = new List <Vector3>(); // overlapping verts

        public Terrain(Vector3 posCenter, Vector3 size, int cellsX, int cellsZ, GraphicsDevice g, Texture2D tex) : base()
        {
            numVertsX = cellsX + 1;
            numVertsZ = cellsZ + 1;
            numVerts  = numVertsX * numVertsZ;
            numTriX   = cellsX * 2;
            numTriZ   = cellsZ;
            numTris   = numTriX * numTriZ;
            verts     = new VertexPositionNormalTexture[numVerts];
            int numIndices = numTris * 3;

            indices = new int[numIndices];
            float cellSizeX = (float)size.X / cellsX;
            float cellSizeZ = (float)size.Z / cellsZ;

            texture = tex;

            Random r             = new Random();
            Random r2            = new Random(DateTime.Now.Millisecond);
            double targetHeight  = 0;
            double currentHeight = 0;
            // Fill in the vertices
            int count = 0;
            //float edgeHeigh = 0;
            //float worldZPosition = posCenter.Z - (size.Z / 2);
            float worldZPosition = -(size.Z / 2);
            float height;
            float stair = 0;
            float diff  = .5f;

            for (int z = 0; z < numVertsZ; z++)
            {
                //float worldXPosition = posCenter.X - (size.X / 2);
                float worldXPosition = -(size.X / 2);
                for (int x = 0; x < numVertsX; x++)
                {
                    if (count % numVertsX == 0)
                    {
                        targetHeight = r2.NextDouble();
                    }
                    //targetHeight += Math.Abs(worldZPosition);// +worldXPosition * 1.0f;

                    currentHeight += (targetHeight - currentHeight) * .009f;
                    //if(x!=0)
                    //currentHeight = (targetHeight) / ((float)x / (float)(numVertsX+1));
                    //height = (float)((r.NextDouble() + currentHeight) * size.Y);


                    //height = 1;

                    //stair += diff;
                    //if (z + x == 17)
                    //stair += 10;

                    //height += stair;
                    verts[count].Position            = new Vector3(worldXPosition, (float)currentHeight, worldZPosition);
                    verts[count].Normal              = Vector3.Zero;
                    verts[count].TextureCoordinate.X = (float)x / (numVertsX - 1);
                    verts[count].TextureCoordinate.Y = (float)z / (numVertsZ - 1);

                    //if (z + x == 17)
                    //stair -= 10;
                    count++;

                    // Advance in x
                    worldXPosition += cellSizeX;
                }

                currentHeight = 0;
                // Advance in z
                worldZPosition += cellSizeZ;
                //diff *= -1;
                //if (diff < 1)
                // stair += numVertsX * diff;
            }

            int index       = 0;
            int startVertex = 0;

            for (int cellZ = 0; cellZ < cellsZ; cellZ++)
            {
                for (int cellX = 0; cellX < cellsX; cellX++)
                {
                    indices[index]     = startVertex + 0;
                    indices[index + 1] = startVertex + 1;
                    indices[index + 2] = startVertex + numVertsX;
                    SetNormalOfTriangleAtIndices(indices[index], indices[index + 1], indices[index + 2]);
                    meshIndices.Add(new TriangleVertexIndices(index, index + 1, index + 2));
                    meshVertices.Add(verts[indices[index]].Position);
                    meshVertices.Add(verts[indices[index + 1]].Position);
                    meshVertices.Add(verts[indices[index + 2]].Position);
                    index += 3;

                    indices[index]     = startVertex + 1;
                    indices[index + 1] = startVertex + numVertsX + 1;
                    indices[index + 2] = startVertex + numVertsX;
                    SetNormalOfTriangleAtIndices(indices[index], indices[index + 1], indices[index + 2]);
                    meshIndices.Add(new TriangleVertexIndices(index, index + 1, index + 2));
                    meshVertices.Add(verts[indices[index]].Position);
                    meshVertices.Add(verts[indices[index + 1]].Position);
                    meshVertices.Add(verts[indices[index + 2]].Position);
                    index += 3;

                    startVertex++;
                }
                startVertex++;
            }

            try
            {
                Effect = new BasicEffect(g);
                mesh   = new TriangleMesh();
                //mesh.CreateMesh(meshVertices, meshIndices, 2, cellSizeX);
            }
            catch (Exception E)
            {
            }

            this.Body          = new Body();
            Skin               = new CollisionSkin(Body);
            Body.CollisionSkin = Skin;
            Body.ExternalData  = this;
            float heightf = 0;

            try
            {
                Array2D field = new Array2D(numVertsX, numVertsZ);

                int i = 0;
                for (int c = 0; c < verts.Length; c++)
                {
                    int x = c / numVertsX;
                    int z = c % numVertsX;

                    if (i >= verts.Length)
                    {
                        i = (i % verts.Length) + 1;
                    }
                    heightf = verts[i].Position.Y + posCenter.Y;
                    //heightf = verts[i].Position.Y;
                    i += numVertsX;

                    field.SetAt(x, z, heightf);
                }

                // Body.MoveTo(Position, Matrix.Identity);

                Heightmap hm = new Heightmap(field,
                                             (-size.X / 2) / (cellsX + 0) + cellSizeX / 2,
                                             (-size.Z / 2) / (cellsZ + 0) + cellSizeZ / 2,
                                             size.X / (cellsX + 0),
                                             size.Z / (cellsZ + 0));
                Skin.AddPrimitive(hm, new MaterialProperties(0.7f, 0.7f, 0.6f));
                //Skin.AddPrimitive(GetMesh(), new MaterialProperties(0.7f, 0.7f, 0.6f));
                //VertexPositionColor[] wireFrame = Skin.GetLocalSkinWireframe(); // 1200 across before Z changes to from -7.5/-7.35 to -7.35/-7.2

                PhysicsSystem.CurrentPhysicsSystem.CollisionSystem.AddCollisionSkin(Skin);
                CommonInit(posCenter, new Vector3(0, 0, 0), null, false);
            }
            catch (Exception E)
            {
            }
        }
Exemplo n.º 4
0
 public void AddPrimitive(Primitive primitive, MaterialProperties materialProperties)
 {
     collision.AddPrimitive(primitive, materialProperties);
 }
Exemplo n.º 5
0
        public TriangleMeshObject(XModel model, Matrix orientation, Vector3 position)
        {
            body      = new Body();
            collision = new CollisionSkin(null);

            triangleMesh = new TriangleMesh();

            foreach (ModelMesh mesh in model.Model.Meshes)
            {
                //declare an array of correct size to hold the models vertices
                VertexPositionNormalTexture[] vertices =
                    new VertexPositionNormalTexture[mesh.VertexBuffer.SizeInBytes / VertexPositionNormalTexture.SizeInBytes];
                //do again, debug this see which one is right??????????
                vertices =
                    new VertexPositionNormalTexture[mesh.VertexBuffer.SizeInBytes / mesh.MeshParts[0].VertexStride];

                //get a copy of the vertices
                mesh.VertexBuffer.GetData <VertexPositionNormalTexture>(vertices);

                List <Vector3> verts = new List <Vector3>();
                //Loop through each vertex and store in vector array
                for (int k = 0; k < vertices.Length; k++)
                {
                    verts.Add(vertices[k].Position);  //may have to transform position relative to something??????
                }
                //Create a list of TriangleVertexIndices from the Index buffer taking into account it could be ints or shorts
                List <TriangleVertexIndices> indexList = new List <TriangleVertexIndices>();
                if (mesh.IndexBuffer.IndexElementSize == IndexElementSize.SixteenBits)
                {
                    short[] tempshorts = new short[mesh.IndexBuffer.SizeInBytes / sizeof(short)];
                    mesh.IndexBuffer.GetData <short>(tempshorts);
                    for (int i = 0; i < tempshorts.Length / 3; i++)
                    {
                        indexList.Add(new TriangleVertexIndices((int)tempshorts[i * 3 + 2], (int)tempshorts[i * 3 + 1], (int)tempshorts[i * 3 + 0]));
                    }
                }

                if (mesh.IndexBuffer.IndexElementSize == IndexElementSize.ThirtyTwoBits)
                {
                    //create index array of correct size
                    int[] tempInts = new int[mesh.IndexBuffer.SizeInBytes / sizeof(int)];
                    mesh.IndexBuffer.GetData <int>(tempInts);
                    for (int i = 0; i < tempInts.Length / 3; i++)
                    {
                        indexList.Add(new TriangleVertexIndices(tempInts[i * 3 + 2], tempInts[i * 3 + 1], tempInts[i * 3 + 0]));
                    }
                }



                triangleMesh.CreateMesh(verts, indexList, 4, 1.0f);
                collision.AddPrimitive(triangleMesh, new MaterialProperties(0.8f, 0.7f, 0.6f));
            }//do next mesh

            /*
             * List<object> tagData = ((ModelData)model.Model.Tag).VertexData as List<object>;
             * List<Vector3> vertices = (List<Vector3>)tagData[0];
             * List<int> indices = (List<int>)tagData[1];
             *
             * Vector3[] verts = new Vector3[vertices.Count];
             * int[] inds = new int[indices.Count];
             *
             * for (int i = 0; i < vertices.Count; i++)
             *  verts[i] = vertices[i];
             *
             * for (int i = 0; i < indices.Count; i++)
             *  inds[i] = indices[i];
             *
             * List<Vector3> vertexList = new List<Vector3>();
             * List<TriangleVertexIndices> indexList = new List<TriangleVertexIndices>();
             *
             * for (int i = 0; i < inds.Length / 3; i++)
             * {
             *  indexList.Add(new TriangleVertexIndices(indices[i * 3 + 2], indices[i * 3 + 1], indices[i * 3 + 0]));
             * }
             *
             * for (int i = 0; i < verts.Length; i++)
             * {
             *  vertexList.Add(vertices[i]);
             * }
             *
             * triangleMesh.CreateMesh(vertexList, indexList, 4, 1.0f);
             *
             * collision.AddPrimitive(triangleMesh, 1, new MaterialProperties(0.8f, 0.7f, 0.6f));
             */
            PhysicsSystem.CurrentPhysicsSystem.CollisionSystem.AddCollisionSkin(collision);

            body.CollisionSkin = collision;
            body.MoveTo(position, orientation);
        }
Exemplo n.º 6
0
        public XBoneMapObject(Vector3 position, ref XModel model)
        {
            //create a list to hold the collision primitives
            List <Primitive> prims = new List <Primitive>();

            //parse for collision bones
            foreach (ModelBone bone in model.Model.Bones)
            {
                string[] keypairs = bone.Name.ToLower().Split('_');
                //if checks for valid naming convention on collision bones
                if ((keypairs.Length == 2) && ((keypairs[0] == "sphere") || (keypairs[0] == "box") || (keypairs[0] == "capsule")))
                {
                    //determine object number
                    int objectnum;
                    if ((keypairs[1] != "") || (keypairs[1] != null))
                    {
                        objectnum = int.Parse(keypairs[1]);
                    }
                    else
                    {
                        objectnum = 0;
                    }

                    //decompose bone transforms to components
                    Vector3    pos;
                    Vector3    scale;
                    Quaternion qrot;
                    bone.Transform.Decompose(out scale, out qrot, out pos);
                    Matrix rot = Matrix.CreateFromQuaternion(qrot);

                    //create  collision primitive objects and add to list
                    switch (keypairs[0])
                    {
                    case ("sphere"):
                        JigLibX.Geometry.Sphere sph = new JigLibX.Geometry.Sphere(pos, scale.X);
                        prims.Add(sph);
                        break;

                    case ("box"):
                        Box box = new Box(pos, rot, scale);
                        prims.Add(box);
                        break;

                    case ("capsule"):
                        break;
                    }
                }
            }

            body      = new Body();
            collision = new CollisionSkin(body);

            if (prims.Count > 0)
            {
                foreach (Primitive prim in prims)
                {
                    //TODO: Add ability to specify physics material type in art editor somehow
                    collision.AddPrimitive(prim, (int)JigLibX.Collision.MaterialTable.MaterialID.NormalSmooth);
                }
            }
            else
            {//no collision prims detected from XSI so create a default one here using the mesh bounding spheres
                foreach (ModelMesh mesh in model.Model.Meshes)
                {
                    //collision.AddPrimitive(new JigLibX.Geometry.Sphere(mesh.BoundingSphere.Center, mesh.BoundingSphere.Radius), new MaterialProperties(0.8f, 0.8f, 0.7f));
                    collision.AddPrimitive(new JigLibX.Geometry.Box(position, Matrix.Identity, new Vector3(mesh.BoundingSphere.Radius / 2f)), (int)JigLibX.Collision.MaterialTable.MaterialID.NormalRough);
                }
            }

            body.CollisionSkin = this.collision;

            Vector3 com = SetMass(1.0f);

            body.MoveTo(position, Matrix.Identity);
            collision.ApplyLocalTransform(new Transform(-com, Matrix.Identity));
            body.EnableBody();
        }
Exemplo n.º 7
0
        public Terrain(Vector3 posCenter, Vector3 size, int cellsX, int cellsZ, GraphicsDevice g, Texture2D tex) : base()
        {
            numVertsX = cellsX + 1;
            numVertsZ = cellsZ + 1;
            numVerts  = numVertsX * numVertsZ;
            numTriX   = cellsX * 2;
            numTriZ   = cellsZ;
            numTris   = numTriX * numTriZ;
            verts     = new VertexPositionNormalTexture[numVerts];
            int numIndices = numTris * 3;

            indices = new int[numIndices];
            float cellSizeX = (float)size.X / cellsX;
            float cellSizeZ = (float)size.Z / cellsZ;

            texture = tex;

            Random r             = new Random();
            Random r2            = new Random(DateTime.Now.Millisecond);
            double targetHeight  = 0;
            double currentHeight = 0;
            // Fill in the vertices
            int count = 0;

            // distribute height nodes across the map.
            // for each vert, calculate the height by summing (node height / distance)
            int numHeightNodes = 10;

            heightNodes = new Vector3[numHeightNodes];
            for (int i = 0; i < numHeightNodes; i++)
            {
                heightNodes[i] = new Vector3((float)((-size.X / 2) + (r.NextDouble() * size.X)),
                                             (float)(r.NextDouble() * 0),
                                             (float)((-size.Z / 2) + (r.NextDouble() * size.Z)));
            }

            bool  stretchTexture   = false;
            float textureTileCount = 10000;

            float worldZPosition = -(size.Z / 2);

            for (int z = 0; z < numVertsZ; z++)
            {
                float worldXPosition = -(size.X / 2);
                for (int x = 0; x < numVertsX; x++)
                {
                    if (count % numVertsX == 0)
                    {
                        targetHeight = r2.NextDouble();
                    }

                    //currentHeight += (targetHeight - currentHeight) * .009f;

                    float height = GetNodeBasedHeight(worldXPosition, worldZPosition);
                    height = 0;
                    verts[count].Position = new Vector3(worldXPosition, height, worldZPosition);
                    verts[count].Normal   = Vector3.Zero;

                    if (stretchTexture)
                    {
                        verts[count].TextureCoordinate.X = (float)x / (numVertsX - 1);
                        verts[count].TextureCoordinate.Y = (float)z / (numVertsZ - 1);
                    }
                    else
                    {
                        verts[count].TextureCoordinate.X = ((float)x / (numVertsX - 1)) * textureTileCount;
                        verts[count].TextureCoordinate.Y = ((float)z / (numVertsZ - 1)) * textureTileCount;
                    }

                    count++;

                    // Advance in x
                    worldXPosition += cellSizeX;
                }

                currentHeight = 0;
                // Advance in z
                worldZPosition += cellSizeZ;
            }

            int index       = 0;
            int startVertex = 0;

            for (int cellZ = 0; cellZ < cellsZ; cellZ++)
            {
                for (int cellX = 0; cellX < cellsX; cellX++)
                {
                    indices[index]     = startVertex + 0;
                    indices[index + 1] = startVertex + 1;
                    indices[index + 2] = startVertex + numVertsX;
                    SetNormalOfTriangleAtIndices(indices[index], indices[index + 1], indices[index + 2]);
                    meshIndices.Add(new TriangleVertexIndices(index, index + 1, index + 2));
                    meshVertices.Add(verts[indices[index]].Position);
                    meshVertices.Add(verts[indices[index + 1]].Position);
                    meshVertices.Add(verts[indices[index + 2]].Position);
                    index += 3;

                    indices[index]     = startVertex + 1;
                    indices[index + 1] = startVertex + numVertsX + 1;
                    indices[index + 2] = startVertex + numVertsX;
                    SetNormalOfTriangleAtIndices(indices[index], indices[index + 1], indices[index + 2]);
                    meshIndices.Add(new TriangleVertexIndices(index, index + 1, index + 2));
                    meshVertices.Add(verts[indices[index]].Position);
                    meshVertices.Add(verts[indices[index + 1]].Position);
                    meshVertices.Add(verts[indices[index + 2]].Position);
                    index += 3;

                    startVertex++;
                }
                startVertex++;
            }

            try
            {
                Effect = new BasicEffect(g);
                mesh   = new TriangleMesh();
                //mesh.CreateMesh(meshVertices, meshIndices, 2, cellSizeX);
            }
            catch (Exception E)
            {
                System.Diagnostics.Debug.WriteLine(E.StackTrace);
            }

            this.Body          = new Body();
            Skin               = new CollisionSkin(Body);
            Body.CollisionSkin = Skin;
            Body.ExternalData  = this;
            float heightf = 0;

            try
            {
                Array2D field = new Array2D(numVertsX, numVertsZ);

                int i = 0;
                for (int c = 0; c < verts.Length; c++)
                {
                    int x = c / numVertsX;
                    int z = c % numVertsX;

                    if (i >= verts.Length)
                    {
                        i = (i % verts.Length) + 1;
                    }
                    heightf = verts[i].Position.Y + posCenter.Y; // works
                    //heightf = verts[i].Position.Y;
                    i += numVertsX;

                    field.SetAt(x, z, heightf);
                }

                // Body.MoveTo(Position, Matrix.Identity);

                Heightmap hm = new Heightmap(field,
                                             (-size.X / 2) / (cellsX + 0) + cellSizeX / 2,
                                             (-size.Z / 2) / (cellsZ + 0) + cellSizeZ / 2,
                                             size.X / (cellsX + 0),
                                             size.Z / (cellsZ + 0));
                Skin.AddPrimitive(hm, new MaterialProperties(0.7f, 0.7f, 0.6f));
                //Skin.AddPrimitive(GetMesh(), new MaterialProperties(0.7f, 0.7f, 0.6f));
                //VertexPositionColor[] wireFrame = Skin.GetLocalSkinWireframe(); // 1200 across before Z changes to from -7.5/-7.35 to -7.35/-7.2

                PhysicsSystem.CurrentPhysicsSystem.CollisionSystem.AddCollisionSkin(Skin);
                CommonInit(posCenter, new Vector3(0, 0, 0), null, false, 0);
            }
            catch (Exception E)
            {
                System.Diagnostics.Debug.WriteLine(E.StackTrace);
            }
        }
Exemplo n.º 8
0
        public Planet(Vector3 center, Vector3 radius, double maxDeviation, double radianMeshSize, int subdivides, GraphicsDevice g, Texture2D texture)
            : base()
        {
            this.texture = texture;
            Body         = new Body();
            Skin         = new CollisionSkin(null);

            for (double i = 0; i < MathHelper.TwoPi - JigLibX.Math.JiggleMath.Epsilon; i += radianMeshSize)
            {
                for (double j = 0; j < MathHelper.TwoPi - JigLibX.Math.JiggleMath.Epsilon; j += radianMeshSize)
                {
                    //TriangleMesh tm = CreateSphericalMeshSegment(i, i + radianMeshSize, j, j + radianMeshSize, trianglesPerMesh, maxDeviation);
                    TriangleMesh   tm = new TriangleMesh();
                    List <Vector3> vl = new List <Vector3>();
                    // Polar -> Cartesion in 3-Spcae
                    // X = R * Sin(Θ) * Cos(ϕ)
                    // Y = R * Sin(Θ) * Sin(ϕ)
                    // Z = R * Cos(Θ)

                    vl.Add(SphericalToCartesian(i, j, radius));
                    vl.Add(SphericalToCartesian(i + radianMeshSize, j, radius));
                    vl.Add(SphericalToCartesian(i + radianMeshSize, j + radianMeshSize, radius));
                    vl.Add(SphericalToCartesian(i, j + radianMeshSize, radius));
                    List <TriangleVertexIndices> tvi = new List <TriangleVertexIndices>();
                    tvi.Add(new TriangleVertexIndices(0, 1, 2));
                    tvi.Add(new TriangleVertexIndices(1, 3, 2));

                    VertexPositionNormalTexture[] v = new VertexPositionNormalTexture[4];
                    Vector3 tmp = SphericalToCartesian(i, j, Vector3.One);
                    v[0].Position            = tmp * radius;
                    v[0].Normal              = Vector3.Zero;
                    v[0].TextureCoordinate.X = tmp.X;
                    v[0].TextureCoordinate.Y = tmp.Y;

                    tmp                      = SphericalToCartesian(i + radianMeshSize, j, Vector3.One);
                    v[1].Position            = tmp * radius;
                    v[1].Normal              = Vector3.Zero;
                    v[1].TextureCoordinate.X = tmp.X;
                    v[1].TextureCoordinate.Y = tmp.Y;

                    tmp                      = SphericalToCartesian(i + radianMeshSize, j + radianMeshSize, Vector3.One);
                    v[2].Position            = tmp * radius;
                    v[2].Normal              = Vector3.Zero;
                    v[2].TextureCoordinate.X = tmp.X;
                    v[2].TextureCoordinate.Y = tmp.Y;

                    tmp                      = SphericalToCartesian(i, j + radianMeshSize, Vector3.One);
                    v[3].Position            = tmp * radius;
                    v[3].Normal              = Vector3.Zero;
                    v[3].TextureCoordinate.X = tmp.X;
                    v[3].TextureCoordinate.Y = tmp.Y;

                    verts.Add(v);

                    indices.Add(new int[] { 0, 1, 2, 1, 3, 2 });
                    SetNormalOfTriangleAtIndices(0, 1, 2, verts.Count - 1);
                    SetNormalOfTriangleAtIndices(1, 3, 2, verts.Count - 1);
                    tm.CreateMesh(vl, tvi, 1, 1f); // Last two parameters are listed as not used on the octree

                    triangleMeshes.Add(tm);
                    Skin.AddPrimitive(tm, (int)MaterialTable.MaterialID.NormalRough);
                }
            }

            List <Vector3> vertexList = new List <Vector3>();
            List <TriangleVertexIndices> indexList = new List <TriangleVertexIndices>();


            Effect = new BasicEffect(g);

            //ExtractData(vertexList, indexList, model);

            //triangleMesh.CreateMesh(vertexList,indexList, 4, 1.0f);
            //Skin.AddPrimitive(triangleMesh, new MaterialProperties(0.8f, 0.7f, 0.6f));
            PhysicsSystem.CurrentPhysicsSystem.CollisionSystem.AddCollisionSkin(Skin);

            // Transform
            Skin.ApplyLocalTransform(new JigLibX.Math.Transform(center, Matrix.Identity));
            // we also need to move this dummy, so the object is *rendered* at the correct positiob
            Body.MoveTo(center, Matrix.Identity);
            CommonInit(center, new Vector3(1, 1, 1), null, false, -1);
        }