User:Subekshya Poudel/Teaching Lesson Plan 23

Subject : Computer Graphics

Period: Fourth

Topic: Three Dimensional Graphics

Teaching Item: Visible Surface Detection Methods: Object Space (Depth Sorting) Methods

Level: Bachelor 6^th sem

Unit: Five

Time: 50 min

No. of Students:

Specific Objective

At the end of this lesson students will be able to:

• understand the concept of projection in 3D graphics
• learn about the types of projection and their characteristics
• differentiate parallel projection and perspective projection

Teaching Materials

• Laptop
• Presentation slide
• Projector
• Whiteboard and marker

Teaching Learning Activities

1. I will begin the class by describing projection as a fundamental concept in computer graphics that involves the conversion of three-dimensional (3D) objects into a two-dimensional (2D) view plane or screen.
2. Then categorize its type: Parallel projection and Perspective projection.
3. At first I will define parallel projection use to display picture in its true shape and size.
4. Discuss the types of parallel projection: orthographic projection and oblique projection by illustrating figure in the whiteboard.
5. Discuss the how orthographic projections used to produce the front, side, and top views of an object by showing figure from the projector.
6. By showing the figures from whiteboard I will define the polygon is a plane figure that is made up of straight line segments connected to form a closed shape.
7. After parallel projection I will define perspective projection; objects that are farther away from the viewer appear smaller, imparting a sense of depth to the representation.
8. Discuss about the important two key feature of parallel projection: foreshortening and vanishing point with figure.
9. Then discuss the types of perspective projection with figure: one-point perspective, two-point perspective and three-point perspective.
10. At last I will ask students to write the difference between parallel projection and perspective projection.
11. Ask students if there is any confusion on today's topic and provide guidance and assistance if needed.

Assessment

1. Explain the concept of projection in 3D graphics and discuss the characteristics of parallel and perspective projection.

2. Illustrate and explain the key components of perspective projection.