public static void CenterPivot(ref AMT_MODEL model)
{
List <Vector3> vertices = new List <Vector3>();
for (int i = 0; i < model.Vertices.Count; i++)
{
vertices.Add(model.Vertices[i].Position);
}
BoundingBox bb = BoundingBox.CreateFromPoints(vertices);
Vector3 positionAjust = -(bb.Max + bb.Min) / 2;
Matrix translation = Matrix.CreateTranslation(positionAjust);
//redimensiona os vertices
for (int i = 0; i < model.Vertices.Count; i++)
{
model.Vertices[i].Position = Vector3.Transform(model.Vertices[i].Position, translation);
}
//reposiciona tb todos os bones e os keyframes
if (model.Joints != null)
{
for (int i = 0; i < model.Joints.Count; i++)
{
AMT_JOINT v = model.Joints[i];
//como ele mexeu na posicao entao mexe so no raiz
if (v.Name == "Root")
{
v.BindMatrix *= translation;
}
if (model.Joints[i].ParentID != -1)
{
v.MatrixAbsolute = model.Joints[i].BindMatrix *
model.Joints[model.Joints[i].ParentID].MatrixAbsolute;
}
else
{
v.MatrixAbsolute = model.Joints[i].BindMatrix;
}
v.InverseBindMatrix = Matrix.Invert(translation) * v.InverseBindMatrix;
//mexe so no raiz
if (v.Name == "Root")
{
for (int j = 0; j < v.KFData.Count; j++)
{
AMT_KF p = v.KFData[j];
p.BindMatrix *= translation;
v.KFData[j] = p;
}
}
model.Joints[i] = v;
}
}
}
void AddAnimations(ref AMT_MODEL?amtModel)
{
List <AMT_ANIMATION> animations = new List <AMT_ANIMATION>();
for (int i = 0; i < animationsData.Rows.Count; i++)
{
var animation = new AMT_ANIMATION()
{
StartFrame = (uint)animationsData.Rows[i]["Start"],
EndFrame = (uint)animationsData.Rows[i]["End"],
Name = animationsData.Rows[i]["Name"].ToString()
};
animations.Add(animation);
}
AMT_MODEL im = amtModel.Value;
im.Animations = animations;
im.Head.NumAnimations = (uint)animations.Count;
amtModel = im;
}
public AMT_MODEL ConvertCollada(Stream stream)
{
var amtModel = new AMT_MODEL();
var doc = XDocument.Load(stream);
var colladaNode = doc.Root;
Namespace = doc.Root.Name.Namespace.NamespaceName;
//ReadGeometries(new XElement(XName.Get("library_geometries", Namespace)), ref amtModel);
//_effects = ReadEffects(colladaNode.Element(XName.Get("library_effects", COLLADAConverter.Namespace)));
//_materials = ReadMaterials(colladaNode.Element(XName.Get("library_materials", COLLADAConverter.Namespace)));
////Lê os layers
//var geometryNodes = colladaNode.Element(XName.Get("library_geometries", COLLADAConverter.Namespace));
//if (geometryNodes != null)
// pmobDoc.Layers = ReadLayers(geometryNodes.Elements());
//ReadLibraryNodes(colladaNode.Element(XName.Get("library_nodes", COLLADAConverter.Namespace)));
//var scenesElement = colladaNode.Element(XName.Get("library_visual_scenes", COLLADAConverter.Namespace));
//if (scenesElement != null)
//{
// var nodes = ReadNodes(scenesElement.Element(XName.Get("visual_scene", COLLADAConverter.Namespace)));
// var rootNode = new Node("root", "root", nodes);
// pmobDoc.Primitive = CreatePrimitive(rootNode);
//}
////Gira o objeto dependendo do up
//var assetNode = colladaNode.Element(XName.Get("asset", COLLADAConverter.Namespace));
//if (assetNode != null)
//{
// var upAxis = assetNode.Elements(XName.Get("up_axis", COLLADAConverter.Namespace));
//}
return(amtModel);
}
public static void SetYUp(ref AMT_MODEL model, Vector3 upVector)
{
if (upVector == Vector3.UnitY)
{
return;
}
//aplica a rotacao
Matrix rotation;
if (upVector == Vector3.UnitX)
{
rotation = Matrix.CreateRotationZ(-MathHelper.PiOver2);
}
else
{
rotation = Matrix.CreateRotationX(-MathHelper.PiOver2);
}
List <Vector3> vertices = new List <Vector3>();
for (int i = 0; i < model.Vertices.Count; i++)
{
AMT_VERTEX v = model.Vertices[i];
Vector3.Transform(ref v.Position, ref rotation, out v.Position);
Vector3.TransformNormal(ref v.Normal, ref rotation, out v.Normal);
}
if (model.Joints != null)
{
for (int i = 0; i < model.Joints.Count; i++)
{
AMT_JOINT v = model.Joints[i];
//como ele mexeu na posicao entao mexe so no raiz
if (v.Name == "Root")
{
v.BindMatrix *= rotation;
}
if (model.Joints[i].ParentID != -1)
{
v.MatrixAbsolute = model.Joints[i].BindMatrix *
model.Joints[model.Joints[i].ParentID].MatrixAbsolute;
}
else
{
v.MatrixAbsolute = model.Joints[i].BindMatrix;
}
v.InverseBindMatrix = Matrix.Invert(rotation) * v.InverseBindMatrix;
//mexe so no raiz
if (v.Name == "Root")
{
for (int j = 0; j < v.KFData.Count; j++)
{
AMT_KF p = v.KFData[j];
p.BindMatrix *= rotation;
v.KFData[j] = p;
}
}
model.Joints[i] = v;
}
}
}
//deixa todos os modelos com tamanho 1 para serem redimensionados no editor
public static void UniformScale(ref AMT_MODEL model)
{
List <Vector3> vertices = new List <Vector3>();
for (int i = 0; i < model.Vertices.Count; i++)
{
vertices.Add(model.Vertices[i].Position);
}
BoundingSphere sphere = BoundingSphere.CreateFromPoints(vertices);
//redimensiona os vertices
float scalefactor = 1.0f / sphere.Radius;
//redimensiona tb todos os bones e os keyframes
Matrix scale = Matrix.CreateScale(scalefactor);
for (int i = 0; i < model.Vertices.Count; i++)
{
model.Vertices[i].Position = Vector3.Transform(model.Vertices[i].Position, scale);
model.Vertices[i].Normal = Vector3.TransformNormal(model.Vertices[i].Normal, scale);
}
if (model.Joints != null)
{
for (int i = 0; i < model.Joints.Count; i++)
{
AMT_JOINT v = model.Joints[i];
//como ele mexeu na posicao entao mexe so no raiz
if (v.Name == "Root")
{
v.BindMatrix *= scale;
}
if (model.Joints[i].ParentID != -1)
{
v.MatrixAbsolute = model.Joints[i].BindMatrix *
model.Joints[model.Joints[i].ParentID].MatrixAbsolute;
}
else
{
v.MatrixAbsolute = model.Joints[i].BindMatrix;
}
v.InverseBindMatrix = Matrix.Invert(scale) * v.InverseBindMatrix;
if (v.Name == "Root")
{
for (int j = 0; j < v.KFData.Count; j++)
{
AMT_KF p = v.KFData[j];
p.BindMatrix *= scale;
v.KFData[j] = p;
}
}
model.Joints[i] = v;
}
}
}