BCA Computer Graphics and Animation

How raster scan display is different from vector scan display? What is the role of video controller in raster scan display system?

Define Pixel and resolution. Explain in brief about Back face detection algorithm.

How flood fill algorithm can be used to fill a polygon? Explain.

What is window to viewport transformation? Explain how mapping from window to viewport is achieved.

Use the Midpoint Circle drawing Algorithm to draw a circle with a radius of 7 units, centered at \((5,5)\).

What is I3 in virtual reality? How immersive virtual reality is different from non-immersive virtual reality?

Write short notes on (Any two):

a) Polygon clipping

b) RGB vs. CMY

c) Designing animation sequences

What is scan conversion? Derive the decision parameter for Bresenham’s line drawing algorithm for \(m<1\).

Write transformation matrices for 3D scaling and shearing. If a triangle with vertices \(P(2, 3)\), \(Q(5,3)\) and \(R(6,8)\) is rotated clockwise \(90^{\circ}\) about the origin and then scaled by 2, what will be the transformed image?

What is image space method for visible surface detection? Write the algorithm for depth buffer method and also explain how depth is used to find the visible surface.