public static void SetDetails(this Terrain t, Rect rect, int[, ,] detailData)
{
var layerCount = detailData.GetLength(2);
for (var i = 0; i < layerCount; i++)
{
int[,] thisLayer = new int[detailData.GetLength(0), detailData.GetLength(1)];
detailData.CopyTo(thisLayer, i);
SetDetails(t, rect, thisLayer, i);
}
}
