public DNode(DNode copy)
{
this.Name = copy.Name;
this.Parent_NodeIndex = copy.Parent_NodeIndex;
this.FirstChild_NodeIndex = copy.FirstChild_NodeIndex;
this.NextSibling_NodeIndex = copy.NextSibling_NodeIndex;
this.Rotation = copy.Rotation;
this.Position = copy.Position;
this.Scale = copy.Scale;
this.Right = copy.Right;
this.Up = copy.Up;
this.Forward = copy.Forward;
this.AbsolutePosition = copy.AbsolutePosition;
}
private Collada141.node[] ParseNode(DNode dNode)
{
Matrix4 matrix = Matrix4.CreateTranslation(dNode.Position);
List<Collada141.node> nodes = new List<Collada141.node>();
if (dNode.NextSibling_NodeIndex != -1) nodes.AddRange(ParseNode(this.Nodes[dNode.NextSibling_NodeIndex]));
var location = dNode.Position;
var rotation = Matrix4.Rotate(dNode.Rotation);
var current_node = new Collada141.node()
{
type = Collada141.NodeType.JOINT,
name = "bone",
sid = "bone",
Items = new object[]{
new Collada141.TargetableFloat3() { sid = "location", Values = dNode.Position.ToArray() },
new Collada141.matrix(){ sid = "rotation", Values = Matrix4ToFloatArray(rotation) },
new Collada141.TargetableFloat3() { sid = "scale", Values =new double[] { 1f, 1f, 1f} },
},
ItemsElementName = new Collada141.ItemsChoiceType2[]{
Collada141.ItemsChoiceType2.translate,
Collada141.ItemsChoiceType2.matrix,
Collada141.ItemsChoiceType2.scale
}
};
if (dNode.FirstChild_NodeIndex != -1) current_node.node1 = ParseNode(this.Nodes[dNode.FirstChild_NodeIndex]);
nodes.Add(current_node);
return nodes.ToArray();
}
private void RenderNodes(DNode parent, DNode node)
{
/* Intent: render the current node (root) at its position,
* then push all the nodes translations onto the stack and render the next child node
* */
var transformed = new DNode(parent);
transformed.Position += node.Position;
transformed.Rotation *= node.Rotation;
var rotations = Matrix4.Rotate(transformed.Rotation);
GL.Color4(Color4.Yellow);
GL.Vertex3(transformed.Position);
Vector3 pointer = new Vector3();
pointer = Vector3.TransformVector(node.Up, rotations);
pointer.Normalize();
pointer *= 2 * unit_length;
GL.Vertex3(transformed.Position + pointer);
GL.Color4(Color4.Red);
GL.Vertex3(transformed.Position);
GL.Vertex3(transformed.Position + node.Up * unit_length);
GL.Color4(Color4.Blue);
GL.Vertex3(transformed.Position);
GL.Vertex3(transformed.Position + node.Right * unit_length);
GL.Color4(Color4.Green);
GL.Vertex3(transformed.Position);
GL.Vertex3(transformed.Position + node.Forward * unit_length);
GL.Color4(Color4.DarkMagenta);
GL.Vertex3(transformed.Position);
GL.Vertex3(transformed.AbsolutePosition);
if (node.FirstChild_NodeIndex != -1)
{
var next_node = new DNode(model.Nodes[node.FirstChild_NodeIndex]);
var p_copy = new DNode(transformed);
RenderNodes(p_copy, next_node);
}
if (node.NextSibling_NodeIndex != -1)
{
var sibling_node = new DNode(model.Nodes[node.NextSibling_NodeIndex]);
RenderNodes(parent, sibling_node);
}
}
private Collada141.node GenerateColladaNode(DNode dNode)
{
var mat = Matrix4.Translation(dNode.Position);
mat *= Matrix4.Rotate(dNode.Rotation);
//Root node
Collada141.node node = new Collada141.node()
{
name = "Armature",
id = "Armature",
type = Collada141.NodeType.NODE,
Items = new object[] {
new Collada141.TargetableFloat3() { sid = "location", Values = new double[]{ dNode.Position.X, dNode.Position.Y, dNode.Position.Z } },
new Collada141.rotate(){ sid = "rotationX", Values =new double[]{ 1f, 0f, 0f } },
new Collada141.rotate(){ sid = "rotationY", Values =new double[]{ 0f, 1f, 0f } },
new Collada141.rotate(){ sid = "rotationZ", Values =new double[]{ 0f, 0f, 1f } },
new Collada141.TargetableFloat3() { sid = "scale", Values =new double[] { 1f, 1f, 1f} },
},
ItemsElementName = new Collada141.ItemsChoiceType2[]{
Collada141.ItemsChoiceType2.translate,
Collada141.ItemsChoiceType2.rotate,
Collada141.ItemsChoiceType2.rotate,
Collada141.ItemsChoiceType2.rotate,
Collada141.ItemsChoiceType2.scale
},
node1 = ParseNode(dNode)
};
return node;
}