public static void ParseGeometryFromNode(Collada_Node geom_node, Matrix4 transform, ref Dictionary <string, Color> colorNodes, ref List <ColladaGeometry> geometries, ref Dictionary <string, Collada_Geometry> geometryNodes, ref Dictionary <string, Collada_Node> nodeNodes)
{
//if there is no matrix...
if (geom_node.Matrix == null)
{
transform = new Matrix4(
1, 0, 0, 0, //x_x, x_y, x_z, t
0, 1, 0, 0, //y_x, y_y, y_z, t
0, 0, 1, 0, //z_x, z_y, z_z, t
0, 0, 0, 1
);
}
else
{
//get the matrix
float[] matrix = geom_node.Matrix[0].Value();
//map to the transform
// [axis]_x [axis]_y [axis]_z [axis]_transform
transform.M11 = matrix[0]; transform.M12 = matrix[1]; transform.M13 = matrix[2]; transform.M14 = matrix[3]; //X axis
transform.M21 = matrix[4]; transform.M22 = matrix[5]; transform.M23 = matrix[6]; transform.M24 = matrix[7]; //Y axis
transform.M31 = matrix[8]; transform.M32 = matrix[9]; transform.M33 = matrix[10]; transform.M34 = matrix[11]; //Z axis
transform.M41 = 0; transform.M42 = matrix[9]; transform.M43 = matrix[10]; transform.M44 = matrix[11]; //W axis
}
//and now process the geometry
if (geom_node.Instance_Geometry != null)
{
foreach (Collada_Instance_Geometry geometry in geom_node.Instance_Geometry)
{
//build a dictionary of materials
Dictionary <string, Color> Materials = new Dictionary <string, Color>();
foreach (Collada_Instance_Material_Geometry materialName in
geometry.Bind_Material[0].Technique_Common.Instance_Material)
{
Materials.Add(materialName.Symbol, colorNodes[materialName.Target]);
}
//and get the actual geometry
geometries.Add(parseGeometry(transform, geometryNodes[geometry.URL], Materials));
}
}
//and now process the sub nodes
if (geom_node.Instance_Node != null)
{
foreach (Collada_Instance_Node node in geom_node.Instance_Node)
{
nodeNodes[node.URL].Matrix = geom_node.Matrix;
ParseGeometryFromNode(nodeNodes[node.URL], transform, ref colorNodes, ref geometries, ref geometryNodes, ref nodeNodes);
}
}
else
{
//DEBUG LOGGING
DebugTools.Log("[Model Loader]: Geometry missing in node with ID " + geom_node.ID);
}
}
public static void recursiveAddNodes(Collada_Node node, ref Dictionary <string, Collada_Node> nodeNodes)
{
if (node.ID != null)
{
nodeNodes.Add("#" + node.ID, node);
}
else
{
nodeNodes.Add("#" + node.Name, node);
}
if (node.node != null)
{
foreach (Collada_Node node_sub in node.node)
{
recursiveAddNodes(node_sub, ref nodeNodes);
}
}
}
