Paper 1

Write down the types of light? (2)

Give vector equation for a plane curve using second degree polynomial? (2)

What are the two aspects of timing in an animation? (2)

Write down the light direction equation? (3)

What does OpenGL comprises to make computer graphics development easier? (3)

#define PI 3.14159265
#define EDGES 30
/* draw a circle */
glBegin(GL_LINE_STRIP);

for (i = 0; i <= EDGES; i++) glVertex2f(cos((2*PI*i)/EDGES),

sin((2*PI*i)/EDGES)); glEnd(); Explain why this code is called bad when constructing a closed surface for two-dimensional example? (3)

Can we define a space curve in a plane? Justify your answer in either case. (5)

For Bezier Curve how many Control points are required and can be calculated? (5)

Which of the following properties of Bezier curves guarantees that a line passes through the control polygon as many times or more times than the line passes through the Bezier curve itself? Coordinate System Independence What problem is faced during clamping or scaling colors, also explain solution to the problem? (5)

How can we keep a light Stationary after whatever viewing and/or modeling transformation? (10)