CA433: Computer Graphics I

1
CA433 Computer Graphics I

• Lecturer
• Barry McCaul
• barry.mccaul_at_computing.dcu.ie
• Notes
• www.computing.dcu.ie/bmccaul/CA433/
• Timetable
• Tuesday 9am, CG-12
• Friday 10am, QG-15
• Assessment
• Continuous Assessment 20 Examination Weight
  80

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Reading list

• Introduction to Computer Graphics
• Foley, Van Dam and Feiner, Hughes, Phillips
• Addison-Wesley
• Computer Graphics, Principles and Practice
• Foley, Van Dam,Feiner, Hughes
• Addison Wesley.
• Old Leaving Cert maths books !?!

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What is computer graphics?

• Pictures
• Video
• Image processing / analysis
• GUIs
• 3D Modelling
• Virtual Reality

4
Pictures

• Varoius formats BMP, GIF, JPEG

5
Video

• .mov, .avi, .wmv, DivX, Quicktime

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Image processing / analysis

• Filters, image enhancement, medical imaging,
  astronomy
• Edge detection, face recognition

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Graphical User Interface (GUI)

• W.I.M.P - Windows, icons,menu, pointers

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3D Modelling

• Cartesian Coordinate System
• Transformations
• Clipping
• Hidden line removal
• Lighting

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3D Modelling

• Cartesian Coordinate System
• Transformations
• Clipping
• Hidden line removal
• Lighting

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3D Modelling

• Cartesian Coordinate System
• Transformations
• Clipping
• Hidden line removal
• Lighting

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VR

• Fully immersive, interactive 3D displays

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Course content

• The emphasis of the course is on the algorithms
  and techniques used to develop realistic views of
  three dimensional objects modelled in the
  computer.
• Developing views will involve problems of
  scaling, rotation, translation, curves, and
  hidden surface removal.
• Aim to put the theory to practice through the use
  of the graphics language processing

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Course content

• What will NOT be covered
• Paint and Imaging packages
• (Adobe Photoshop)
• 2. CAD packages (AutoCAD)
• 3. Rendering packages (Lightscape)
• 4. Modelling packages (3D Studio MAX, Blender)
• 5. Animation packages (Digimation)

• What will be covered
• Raster displays
• Cartesian Coordinate System
• Introduction to Processing language
• 2D Transformation, Scaling Rotation
• 2D Transformation using matrices
• 3D Transformation, Scaling Rotation using
  martices
• Simple animation/interaction
• Surface Modelling
• Hidden-Surface Problem.

14
Computer graphics Maths

• Cant stress this enough!
• Primarily matrices, trigonometry and calculus.

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Practical work

• http//www.processing.org/
• Processing is an open source programming
  language and environment for people who want to
  program images, animation, and sound. It is used
  by students, artists, designers, architects,
  researchers, and hobbyists for learning,
  prototyping, and production.
• It is created to teach fundamentals of computer
  programming within a visual context and to serve
  as a software sketchbook and professional
  production tool.

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Next week

• Raster displays
• Cartesian Coordinate System
• Introduction to Processing language
• 2D Transformation, Scaling Rotation