return normals
end
+ redef var texture_coords: Array[Float] is lazy do
+ var a = [0.0, 1.0]
+ var b = [1.0, 1.0]
+ var c = [0.0, 0.0]
+ var d = [1.0, 0.0]
+
+ var texture_coords = new Array[Float]
+ for v in [c, d, a, a, d, b] do for i in 6.times do texture_coords.add_all v
+ return texture_coords
+ end
+
redef var center = new Point3d[Float](0.0, 0.0, 0.0) is lazy
end