Z-buffer algorithm algorithm for creating 3D illusion on 2D screen.

Explain the Z-buffer algorithm algorithm for creating 3D illusion on 2D screen.

(ii) Draw a rough sketch of Bezier curve with the following control points: P1 (60,30), P2 (0, 30), P3 (80,25), P4 (80,0).

(iii) Write the properties of B-Spline. Show that B-Spline curve is non-uniform and periodic.