Compute smooth vertex normals and ensure they point up (+Y). After a height
field is mirrored through y = 0 or comes from an arbitrary triangulation the
winding may yield downward normals; if so the index winding is reversed and
the normals recomputed. Bounding volumes are refreshed.
Compute smooth vertex normals and ensure they point up (+Y). After a height field is mirrored through
y = 0or comes from an arbitrary triangulation the winding may yield downward normals; if so the index winding is reversed and the normals recomputed. Bounding volumes are refreshed.