public static ModelData Load(Stream stream)
{
ModelData modelData = new ModelData();
ColladaRoot colladaRoot = new ColladaRoot(XElement.Load(stream));
if (colladaRoot.Scene.VisualScene.Nodes.Count > 1)
{
ModelBoneData modelBoneData = new ModelBoneData();
modelData.Bones.Add(modelBoneData);
modelBoneData.ParentBoneIndex = -1;
modelBoneData.Name = string.Empty;
modelBoneData.Transform = Matrix.Identity;
foreach (ColladaNode node in colladaRoot.Scene.VisualScene.Nodes)
{
LoadNode(modelData, modelBoneData, node, Matrix.CreateScale(colladaRoot.Asset.Meter));
}
}
else
{
foreach (ColladaNode node2 in colladaRoot.Scene.VisualScene.Nodes)
{
LoadNode(modelData, null, node2, Matrix.CreateScale(colladaRoot.Asset.Meter));
}
}
foreach (ModelBuffersData buffer in modelData.Buffers)
{
IndexVertices(buffer.VertexDeclaration.VertexStride, buffer.Vertices, out buffer.Vertices, out buffer.Indices);
}
return(modelData);
}
public static ModelMeshData LoadGeometry(ModelData data, ModelBoneData parentBoneData, ColladaGeometry geometry)
{
ModelMeshData modelMeshData = new ModelMeshData();
data.Meshes.Add(modelMeshData);
modelMeshData.Name = parentBoneData.Name;
modelMeshData.ParentBoneIndex = data.Bones.IndexOf(parentBoneData);
bool flag = false;
foreach (ColladaPolygons polygon in geometry.Mesh.Polygons)
{
ModelMeshPartData modelMeshPartData = LoadPolygons(data, polygon);
modelMeshData.MeshParts.Add(modelMeshPartData);
modelMeshData.BoundingBox = (flag ? BoundingBox.Union(modelMeshData.BoundingBox, modelMeshPartData.BoundingBox) : modelMeshPartData.BoundingBox);
flag = true;
}
return(modelMeshData);
}
public static ModelBoneData LoadNode(ModelData data, ModelBoneData parentBoneData, ColladaNode node, Matrix transform)
{
ModelBoneData modelBoneData = new ModelBoneData();
data.Bones.Add(modelBoneData);
modelBoneData.ParentBoneIndex = ((parentBoneData != null) ? data.Bones.IndexOf(parentBoneData) : (-1));
modelBoneData.Name = node.Name;
modelBoneData.Transform = node.Transform * transform;
foreach (ColladaNode node2 in node.Nodes)
{
LoadNode(data, modelBoneData, node2, Matrix.Identity);
}
foreach (ColladaGeometry geometry in node.Geometries)
{
LoadGeometry(data, modelBoneData, geometry);
}
return(modelBoneData);
}