private Dictionary <Kn5Node, Aabb3> GetAabb3Dictionary()
{
if (_aabb3s != null)
{
return(_aabb3s);
}
var aabb3Dictionary = _aabb3s = new Dictionary <Kn5Node, Aabb3>();
SetAabb(_kn5.RootNode);
return(aabb3Dictionary);
Aabb3 SetAabb(Kn5Node node)
{
if (node.NodeClass != Kn5NodeClass.Base)
{
return(aabb3Dictionary[node] = node.CalculateAabb3(_kn5.RootNode));
}
var aabb3 = Aabb3.CreateNew();
foreach (var child in node.Children)
{
aabb3.Extend(SetAabb(child));
}
return(aabb3Dictionary[node] = aabb3);
}
}
public static Aabb3 CalculateAabb3(this Kn5Node mesh, Kn5Node relativeTo)
{
var transform = mesh.CalculateTransformRelativeToParent(relativeTo);
var aabb = Aabb3.CreateNew();
foreach (var v in mesh.Vertices)
{
aabb.Extend(Vec3.Transform(v.Position, transform));
}
return(aabb);
}
