void testUniformConeDirection() { Plot2D plot( output_path + "/random_cone.png", plot_size, plot_size ); Vector4 dir( 1.0, 1.0, 1.0 ), v; const float angle = 0.3f; for( auto i = 0; i < points_per_plot; i++ ) { rng.uniformConeDirection( dir, angle, v ); plot.addPoint( v.x, v.y ); } }