public void AddGeometryData(MeshPartGeometryData data, MeshMaterial material, Matrix transform)
{
if (!parts.ContainsKey(material))
{
throw new InvalidOperationException("Material not created by the meshbuilder");
}
var p = parts[material];
var xTransform = transform.xna();
var sPositions = data.GetSourceVector3(MeshPartGeometryData.Semantic.Position);
var sNormals = data.GetSourceVector3(MeshPartGeometryData.Semantic.Normal);
var sTexcoords = data.GetSourceVector2(MeshPartGeometryData.Semantic.Texcoord);
var nPositions = new XnaVector3[sPositions.Length];
var nNormals = new XnaVector3[sNormals.Length];
var nTexcoords = sTexcoords;
XnaVector3.Transform(sPositions, ref xTransform, nPositions);
XnaVector3.TransformNormal(sNormals, ref xTransform, nNormals);
p.Positions.AddRange(nPositions);
p.Normals.AddRange(nNormals);
p.Texcoords.AddRange(nTexcoords);
}
/// <summary>
/// TODO: write tests for boundingbox calculation
/// </summary>
/// <param name="mesh"></param>
/// <returns></returns>
public static BoundingBox CalculateBoundingBox(IMesh mesh)
{
var ret = new XnaBoundingBox();
foreach (var part in mesh.GetCoreData().Parts)
{
var positions = part.MeshPart.GetGeometryData().GetSourceVector3(MeshPartGeometryData.Semantic.Position);
if (positions.Length == 0)
{
continue;
}
//TODO: check this!
XnaVector3.Transform(positions, ref part.ObjectMatrix, positions);
ret = ret.MergeWith(XnaBoundingBox.CreateFromPoints(positions));
}
return(ret.dx());
}
public Vector3 TransformMatrixSubModel(Vector3 translateSub)
{
return(Vector3.Transform(translateSub, World));
}
public static Vector3 Transform(Vector3 vector, Quaternion transform)
{
return(new Vector3(
MonoGameVector3.Transform(vector.MonoGameVector, transform)
));
}
public static Vector3 Transform(Vector3 vector, Matrix transform)
{
return(new Vector3(
MonoGameVector3.Transform(vector.MonoGameVector, transform)
));
}
public static Vector3 Transform(Vector3 val, Matrix transform)
{
return(new Vector3(Vector.Transform(val, transform)));
}