# Practice Exam Questions 8
📗 Enter your ID (the wisc email ID without @wisc.edu) here:  and click  (or hit the "Enter" key)  
1,2,3,4,5 q8 
📗 Please report any bugs or mistakes on Piazza. 
📗 Question 1 
 
 Question 2 
 
📗 Question 3 
 
 Question 4 
 
📗 Question 5 
 
📗 [1 points] Click on all vertices that are T-Junctions. 
 
 
Click 
 and if the points turn green, they are correct. 
 
📗 [1 points] Order the following steps. 
   
   
   
   
   
   
Click 
 to check: 
Incorrect. 
 
📗 [1 points] The point  is transformed by the homogeneous transformation  to . 
Click 
 to check: 
Incorrect. 
 
📗 [1 points] The point  is transformed by the projection matrix  with focal length  to . 
Click 
 to check: 
Incorrect. 
Note: the projection matrix is a simplified version without near and far planes and with focal length \(d\). 
 
📗 [1 points] A large horizontal square is lit by a single point light source directly above it. 
 
 
➩ The red square has  lighting. 
➩ The green square has  lighting. 
➩ The blue square has  lighting. 
Click 
 to check: 
Incorrect.