MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER GRAPHICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The ____ is usually placed at the viewing-coordinate origin and the center of projection is positioned to obtain the amount of perspective desired.
A
view plane
B
CVV
C
Viewing Window
D
None of the above
Explanation: 

Detailed explanation-1: -The view plane is usually placed at the viewing-coordinate origin and the center of projection is positioned to obtain the amount of perspective desired.

Detailed explanation-2: -Center of Projection – It is a point where lines or projection that are not parallel to projection plane appear to meet.

Detailed explanation-3: -In this coordinate system, the viewer is at the origin, (0, 0, 0), looking in the direction of the negative z-axis; the positive direction of the y-axis is pointing straight up; and the x-axis is pointing to the right. This is a viewer-centric coordinate system.

Detailed explanation-4: -Workstation transformation maps the coordinate positions on the projection plane to the output device.

Detailed explanation-5: -Explanation: In perspective projection (from 3D to 2D), objects behind the centre of projection are projected upside down and backward onto the view-plane. This is known as view confusion.

There is 1 question to complete.