public void Build(List <CsgPolygon> polygons)
{
if (polygons.Count == 0)
{
return;
}
if (Plane == null)
{
// Don't randomly choose a split plane. Coherent results are important.
Plane = polygons[polygons.Count / 2].Plane.Clone();
}
var frontPolygons = new List <CsgPolygon>();
var backPolygons = new List <CsgPolygon>();
for (int i = 0; i < polygons.Count; i++)
{
Plane.SplitPolygon(polygons[i], Polygons, Polygons, frontPolygons, backPolygons);
}
if (frontPolygons.Count > 0)
{
if (Front == null)
{
Front = new CsgNode();
}
Front.Build(frontPolygons);
}
if (backPolygons.Count > 0)
{
if (Back == null)
{
Back = new CsgNode();
}
Back.Build(backPolygons);
}
}
public CsgPolygon(List <CsgVertex> vertices, CsgSurfaceSharedData shared = null, CsgPlane plane = null)
{
Vertices = vertices;
Shared = shared;
Plane = plane?.Clone() ?? CsgPlane.FromPoints(vertices);
}
