private void TriangulateCornerTerracesCliff(
Vector3 begin, VoronoiCell beginCell,
Vector3 left, VoronoiCell leftCell,
Vector3 right, VoronoiCell rightCell)
{
float b = 1f / (rightCell.Elevation - beginCell.Elevation);
b = b < 0 ? -b : b;
Vector3 boundary = Vector3.Lerp(VoronoiMetrics.Perturb(begin), VoronoiMetrics.Perturb(right), b);
Color boundaryColor = Color.Lerp(beginCell.Color, rightCell.Color, b);
TriangulateBoundaryTriangle(begin, beginCell, left, leftCell, boundary, boundaryColor);
if (leftCell.GetEdgeType(rightCell) == VoronoiEdgeType.Slope)
{
TriangulateBoundaryTriangle(left, leftCell, right, rightCell, boundary, boundaryColor);
}
else
{
Terrain.AddTriangleUnperturbed(VoronoiMetrics.Perturb(left), VoronoiMetrics.Perturb(right), boundary);
Terrain.AddTriangleColor(leftCell.Color, rightCell.Color, boundaryColor);
}
}