Tiêu đề MCQ Unit4 Visible Surface Detection Algorithms.pdf ✅

BCA 5th Sem Computer Graphics and Animation Mechi Multiple Campus 2 (c) Frame buffer (d) A and B both 6. Which surface algorithm is based on perspective depth? (a) Depth comparison (b) Z-buffer or depth-buffer algorithm (c) Subdivision method (d) Back-face removal 7. The painter algorithm are also called (a) Depth sort algorithm (b) Priority algorithm (c) Both a & b (d) None of these 8. The painter algorithm are based on the property of (a) Polygon (b) Frame buffer (c) Depth buffer (d) None of these 9. The painter algorithm were developed on (a) 1972 by Newell (b) 1972 by Evans (c) 1974 by Cat mull (d) None of these 10. The problem of hidden surface are (a) Removal of hidden surface (b) Identification of hidden surface (c) Both a & b (d) None of these
BCA 5th Sem Computer Graphics and Animation Mechi Multiple Campus 3 11. The surfaces that is blocked or hidden from view in a 3D scene are known as (a) Hidden surface (b) Frame buffer (c) Quad tree (d) None of these 12. The types of hidden surface removal algorithm are (a) Depth comparison, Z-buffer, back-face removal (b) Scan line algorithm, priority algorithm (c) BSP method, area subdivision method (d) All of these 13. Which surface algorithm is based on perspective depth (a) Depth comparison (b) Z-buffer or depth-buffer algorithm (c) Subdivision method (d) back-face removal 14. Why we need removal of hidden surface (a) For displaying realistic view (b) For determining the closest visible surface (c) Both a & b (d) None of these 15. Z -buffer algorithm are (a) Simplest algorithm (b) Complex algorithm (c) Largest algorithm (d) None of these 16. How many types of hidden surface algorithm are (a) 1
BCA 5th Sem Computer Graphics and Animation Mechi Multiple Campus 4 (b) 2 (c) 3 (d) 4 17. The algorithm of hidden surface are (a) Object-space method (b) image-space method (c) Both a & b (d) None of these 18. The method which is based on the principle of comparing objects and parts of objects to each other to find which are visible and which are hidden are called (a) Object-space method (b) image-space method (c) Both a & b (d) None of these 19. In which year Z- buffer algorithm are described (a) 1995 (b) 1974 (c) 1945 (d) 1981 20. The depth sorting method reforms surfaces sorting in________ order of depth (a) Increasing (b) Decreasing (c) Both a & b (d) None of these 21. Scan lines are used to scan from (a) Top to bottom (b) Bottom to top