Z-value and the z-buffer algorithm

Question

Question 1: What happens when the two polygons encompass the same z value and the Z-buffer algorithm is employed?

Question 2: Show that the alignment transformation persuades the relation Av^-1 = Av^T.

Question 3: How many view planes (at origin) produce isometric projections of the object?

Question 4: Determine the equations of the planes forming the view volume for the general parallel projection.

Question 5: How is the depth of a polygon determined by painter’s algorithm?

Question 6: Explain how the subdivision algorithm exploit are coherence?

Question 7: How can hidden-surface algorithms are employed to eradicate hidden lines as applied to the polygonal mesh models?

Question 8: Find out a normalization transformation from the window whose lower left corner is at (0, 0) and upper right corner is at (4, 3) to the normalized device screen so that the aspect ratios are preserved.