public List <CsgPolygon> ClipPolygons(List <CsgPolygon> polygons)
{
if (Plane == null)
{
return(new List <CsgPolygon>(polygons));
}
var frontPolygons = new List <CsgPolygon>();
var backPolygons = new List <CsgPolygon>();
for (int i = 0; i < polygons.Count; i++)
{
Plane.SplitPolygon(polygons[i], frontPolygons, backPolygons, frontPolygons, backPolygons);
}
if (Front != null)
{
frontPolygons = Front.ClipPolygons(frontPolygons);
}
if (Back != null)
{
backPolygons = Back.ClipPolygons(backPolygons);
}
else
{
backPolygons.Clear();
}
frontPolygons.AddRange(backPolygons);
return(frontPolygons);
}
public void ClipTo(CsgNode bsp)
{
Polygons = bsp.ClipPolygons(Polygons);
Front?.ClipTo(bsp);
Back?.ClipTo(bsp);
}
