Lecture Computer graphics: Lecture 8 - Fasih ur Rehman

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Lecture Computer graphics: Lecture 8 - Fasih ur Rehman

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The following will be discussed in this chapter: described how memory stores data, instructions, and information, and discussed the sequence of operations that occur when a computer executes an instruction. The chapter included a comparison of various microprocessors on the market today.

Computer Graphics Lecture 08 Fasih ur Rehman Last Class • Ray Tracing Today’s Agenda • Viewing – Perspectives – Projections Viewing • Process of seeing a scene is regarded as viewing – The world or scenes are in three dimensions (3D) – A 3D Scene has to be “projected” in 2D – A Synthetic camera has to be modeled Viewing Problems • Where a viewer is located (Location) • Viewing Plane • The visible portion of the scene – • • i e., what can be seen (clipping) Maintaining relation between objects – Parallel lines – Angles – Distances Relation to the viewer Scenes and Objects • Viewing a scene or object – • • • Some viewing techniques perform better in viewing objects than a whole scene External Viewing: Viewing an object from outside e g a building Internal Viewing: viewing from inside e.g internal of a building specially in games Projections • Project N-Dimensions Coordinates onto

Ngày đăng: 30/01/2020, 09:44

Mục lục

  • Slide 1

  • Last Class

  • Today’s Agenda

  • Viewing

  • Viewing Problems

  • Scenes and Objects

  • Projections

  • Projections

  • Projections

  • Perspective

  • View Classification

  • Creating View

  • Computing Viewing Rays

  • Shadow Rays

  • Summary

  • References

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