Computer Graphics Output Primitives Quiz

Which output primitive can be used to create a closed polyline that cannot be filled?

GL_LINE_LOOP

What attribute is used to define the fill color for polygons?

Color Depth

Which output primitive is used to create images in computer graphics?

GL_IMAGE

Which attribute is used to define the font type and style in text output?

Font Type and Style Signup and view all the answers

What is the next value of Pinit in F(M2) dependent on?

xk and yk Signup and view all the answers

In which scenario does the algorithm stop iteration?

When y = 0 on axis of x Signup and view all the answers

What compensation is needed in line-drawing algorithms to remove jaggies?

Anti-aliasing Signup and view all the answers

What does increasing resolution in Super Sampling cause?

Increased memory bandwidth Signup and view all the answers

What is the condition to switch from region R1 to region R2?

b2(xk + 1) >= a2(yk – 1/2) Signup and view all the answers

What is the initial condition for the first point on region R1?

(Pinit)R1 = 4b2 + a2(1 – 4b) Signup and view all the answers

What happens if the decision parameter Pk is less than 0 for choice pixel (E)?

Pk+1 = Pk + b2(2xk + 3) Signup and view all the answers

What is the gradient function for the slope at any point on the ellipse?

(2b2x)i + (2a2y)j Signup and view all the answers

In which region do we have the condition |df/dx| > |df/dy| ≡ slope 1?

Region R1 Signup and view all the answers

How is the point (Q) obtained in the context of the midpoint ellipse algorithm?

By finding the slope to the curve with the condition |df/dx| = |df/dy| Signup and view all the answers