Hidden surface problem: In the pictures with non-transparent objects, the objects cannot be viewed that are behind from objects nearer to eye. These hidden surfaces are to be removed for getting realistic screen image. The removal of such surfaces is known as hidden-surface problem. The methods used for removing hidden surface problem includes: Object space method: It is executed in physical coordinate system. Image space method: It is executed in screen coordinate system. To display a 3D object on 2D screen, the parts visible from chosen viewing point are to be identified.

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Chapter 10, Problem 29CRP

Program Plan Intro

Hidden surface problem:

In the pictures with non-transparent objects, the objects cannot be viewed that are behind from objects nearer to eye.

These hidden surfaces are to be removed for getting realistic screen image.

The removal of such surfaces is known as hidden-surface problem.

The methods used for removing hidden surface problem includes:

Object space method:

It is executed in physical coordinate system.

Image space method:

It is executed in screen coordinate system.

To display a 3D object on 2D screen, the parts visible from chosen viewing point are to be identified.

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