private void UpdateBoundsItem()
{
if (Children.Count == 2)
{
var transformAabb = TransformItem.GetAxisAlignedBoundingBox();
var fitAabb = FitBounds.GetAxisAlignedBoundingBox();
var fitSize = fitAabb.Size;
if (boundsSize.X != 0 && boundsSize.Y != 0 && boundsSize.Z != 0 &&
(fitSize != boundsSize ||
fitAabb.Center != transformAabb.Center))
{
FitBounds.Matrix *= Matrix4X4.CreateScale(
boundsSize.X / fitSize.X,
boundsSize.Y / fitSize.Y,
boundsSize.Z / fitSize.Z);
FitBounds.Matrix *= Matrix4X4.CreateTranslation(
transformAabb.Center
- FitBounds.GetAxisAlignedBoundingBox().Center);
}
}
}