public override Bounds CalculateBounds()
{
if (!brushMeshAsset)
{
return(CSGHierarchyItem.EmptyBounds);
}
var modelMatrix = CSGNodeHierarchyManager.FindModelTransformMatrixOfTransform(hierarchyItem.Transform);
var bounds = CSGHierarchyItem.EmptyBounds;
var foundBrushes = new HashSet <CSGTreeBrush>();
GetAllTreeBrushes(foundBrushes, false);
foreach (var brush in foundBrushes)
{
var transformation = modelMatrix * brush.NodeToTreeSpaceMatrix;
var assetBounds = brushMeshAsset.CalculateBounds(transformation);
var magnitude = assetBounds.size.sqrMagnitude;
if (float.IsInfinity(magnitude) ||
float.IsNaN(magnitude))
{
var center = transformation.GetColumn(3);
assetBounds = new Bounds(center, Vector3.zero);
}
if (assetBounds.size.sqrMagnitude != 0)
{
if (bounds.size.sqrMagnitude == 0)
{
bounds = assetBounds;
}
else
{
bounds.Encapsulate(assetBounds);
}
}
}
return(bounds);
}