QUESTION (20 MARKS)
a) Discuss how incremental line drawing algorithms work. (10 Marks) b) The following is an OpenGl code, can you draw the output that will be displayed on the computer screen. (10 Marks)
Main(){ InitialilzeAWindowPlease(); glClearColor (0.0,0.0,0.0,0.0); glClear (GL_COLOR_BUFFER_BIT); glColor3f(1.0,1.0,1.0); glOrtho(0.0,1.0,0.0,1.0,-1.0,1.0); glBegin(GL_POLYGON); glVertex3f(0.25,0.25,0.0); glVertex3f(0.75,0.25,0.0); glVertex3f(0.75,0.75,0.0); glVertex3f(0.25,0.75,0.0); glEnd(); glFlush();
Update TheWindowAndCheckForEvents(); }
QUESTION
(20 MARKS)
a) Discuss the advantages and disadvantages of liquid crystal display. (8 Marks) b) Differentiate between the following three classes of transformations. (12 Marks) i. Rigid body ii. Conformal iii. Affine
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