public static TFloatList generateNormals(TFloatList positions, TIntList indices) {
        final TFloatList normals = new TFloatArrayList();
        generateNormals(positions, indices, normals);
        return normals;
    }
public static TFloatList generateNormals ( TFloatList positions , TIntList indices ) { final TFloatList normals = new TFloatArrayList ( ) ; generateNormals ( positions , indices , normals ) ; return normals ; }
Generate the normals for the positions, according to the indices. This assumes that the positions have 3 components, in the x, y, z order. The normals are stored as a 3 component vector, in the
x, y, z order.

@param positions The position components
@param indices The indices
@return The normals