MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -– For parallel projection, view volume is a box. – For perspective projection, view volume is a frustum.

Detailed explanation-2: -Projection are defined as mapping of three-dimensional points to a two-dimensional plane. There are two type of projection parallel and perspective.

Detailed explanation-3: -The volume of space that is actually rendered into the image is called the view volume. Things inside the view volume make it into the image; things that are not in the view volume are clipped and cannot be seen. For purposes of drawing, OpenGL applies a coordinate transform that maps the view volume onto a cube.

Detailed explanation-4: -Orthographic Projections: In orthographic projection the direction of projection is normal to the projection of the plane. In orthographic lines are parallel to each other making an angle 90 with view plane.