0.00000 0.69804 0.85098 1.00000
0.25000 0.84706 0.92549 0.87451
0.50000 1.00000 1.00000 0.74902
0.75000 1.00000 0.90196 0.82745
1.00000 1.00000 0.80000 0.90196