public CoordinateSystem(CoordinateSystem cs)
: this(cs.Type,
cs.Up,
cs.Right,
cs.Meter)
{
}
// Summary:
// Initializes a new instance of Model.
// This will work only if the COLLADA geometry has been processed for vertex array
// Parameters:
// _document:
// The collada document
public Model(Document _doc)
{
// internals
doc = _doc;
// create coordinate systems
coordinateSystemSource = doc.CoordinateSystem;
coordinateSystemTarget = new CoordinateSystem(
CoordinateSystemType.LeftHanded);
// create meshes
meshes = new Dictionary<string, CMesh>();
foreach (Document.Geometry geo in doc.geometries)
{
// only load valid meshes
if (geo.mesh != null && geo.mesh.primitives != null && geo.mesh.primitives.Count > 0)
meshes[geo.id] = new CMesh(this, geo);
else
COLLADAUtil.Log(COLLADALogType.Warning, "Geometry '" + geo.id + "' seems invalid ... skipping.");
}
// skinned meshes will be created in ReadNode method, because the only way to tell if a mesh
// needs skinning is by reading the scene graph of collada.
// since skinned meshes need additional data in vertex and index buffers this is a litte dirty.
skinnedMeshes = new Dictionary<string, CSkinnedMesh>();
// create materials
// Need a list of meshPart per material...., and most probably a link from the meshPart to the mesh
basicMaterials = new Dictionary<string, BasicMaterial>();
textureBindings = new Dictionary<string, Dictionary<string, uint>>();
foreach (Document.Material material in doc.materials)
basicMaterials[material.id] = CreateBasicMaterial(this, material);
// create cameras
cameras = new Dictionary<string, Camera>();
foreach (Document.Camera camera in doc.cameras)
cameras[camera.id] = new Camera(this, camera);
// get the model from the instanced visual scene
Document.VisualScene scene = doc.dic[doc.instanceVisualScene.url.Fragment] as Document.VisualScene;
if (scene == null) throw new Exception("NO VISUAL SCENE (MODEL) IN DOCUMENT");
// recursive call to load scene
bones = new Dictionary<string, Bone>();
instanceMeshes = new List<InstanceMesh>();
instanceCameras = new List<InstanceCamera>();
root = new Model.Bone(this,null,scene.id,scene.name, "VISUAL_SCENE");
foreach (Document.Node node in scene.nodes)
root.Children.Add(ReadNode(root, node));
// create animations
animations = new Dictionary<string, Animation>();
foreach (Document.Animation animation in doc.animations)
{
try
{
animations.Add(animation.id, new Animation(doc, this, animation));
}
catch (ColladaException e)
{
COLLADAUtil.Log(e);
}
}
}
public static Matrix ConversionMatrix(
CoordinateSystem Source,
CoordinateSystem Target)
{
var conversionMatrix = MatrixToDNMatrix(Source.Matrix).LU().Solve(MatrixToDNMatrix(Target.Matrix));
return DNMatrixToMatrix(conversionMatrix);
}
