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Computer Graphics Midterm Review - Fall 2007 - Prof. Christopher Wyman, Study notes of Computer Graphics

University of Iowa (UI)Computer Graphics

Prof. Christopher Wyman

Information about the computer graphics midterm exam scheduled for october 18, 2007. The exam is open book and open note, and covers concepts related to ppm files, monitor basics, opengl, glut, opengl commands, primitives, transformations, matrices, homogeneous coordinates, perspective, and opengl lighting. No calculator is needed, and the exam will consist mostly of short answer format questions.

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22C:151 Computer Graphics Fall 2007 – Midterm Review

The midterm will be at 9:30-10:45 on Thursday October 18

The exam will be open book & open note. No calculator will be needed, though you may bring one (especially if

simplifying things like sin 60◦or cot 45◦is difficult).

The exam will mostly consist of short answer format questions. The basic idea of the exam will be to see if you

understand the concepts – determining if you can code is the job of the homeworks, not the exam. At most, you will

have to interpret code, not write it. None of the questions will be “trick” questions, and many of them will have simple

answers. If you know the concepts well, you may be done in half an hour. Those of you who need to refer to the book

for most questions will have difficulty finishing in the allotted time.

Things you may wish to review should you feel rusty:

•What is a PPM file?

•Basics of monitors. What are R, G, B, and A? How do these relate to human vision?

•Why is OpenGL called a state machine? What is a state machine?

•Basic GLUT functionality. Callback routines.

•Basic OpenGL commands for drawing

•Primitives allowable in OpenGL

•What do various parameters to glBegin() mean?

•Bresenham’s line algorithm

•The difference between Bresenham’s algorithm and the incremental approach (the simple approach we examined first)

•Smooth v.s. flat shading

•Interpolation

•Triangle rasterization

•Boundary conditions for triangle rasterization

•Color interpolation for triangles

•Homogeneous coordinates and their use

•Why do we need/want a homogeneous coordinate system?

•Transformations, matrices, how they’re implemented in OpenGL, and ordering of transformations

•Why do we need 4×4matrices in OpenGL? What do the extra row and column do?

•Perspective

•What is a matrix stack? Why is it useful?

•What is a z-buffer? What does it store? How do you enable it in OpenGL?

•OpenGL lighting. What is the process of enabling it? What parameters are required? How are these parameters affected by

OpenGL state?

•Basics of OpenGL texturing. How might you apply an image to a triangle, a plane, a cone, a sphere, a cow?

Mipmapping will not be on the midterm exam, but I might ask about texturing problems that motive mipmaps.

Discover Study notes of Computer Graphics University of Iowa (UI)

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Download Computer Graphics Midterm Review - Fall 2007 - Prof. Christopher Wyman and more Study notes Computer Graphics in PDF only on Docsity!

22C:151 Computer Graphics Fall 2007 – Midterm Review

The midterm will be at 9:30-10:45 on Thursday October 18

The exam will be open book & open note. No calculator will be needed, though you may bring one (especially if

simplifying things like sin 60◦^ or cot 45◦^ is difficult).

The exam will mostly consist of short answer format questions. The basic idea of the exam will be to see if you

understand the concepts – determining if you can code is the job of the homeworks, not the exam. At most, you will

have to interpret code, not write it. None of the questions will be “trick” questions, and many of them will have simple

answers. If you know the concepts well, you may be done in half an hour. Those of you who need to refer to the book

for most questions will have difficulty finishing in the allotted time.

Things you may wish to review should you feel rusty:

What is a PPM file?
Basics of monitors. What are R, G, B, and A? How do these relate to human vision?
Why is OpenGL called a state machine? What is a state machine?
Basic GLUT functionality. Callback routines.
Basic OpenGL commands for drawing
Primitives allowable in OpenGL
What do various parameters to glBegin() mean?
Bresenham’s line algorithm
The difference between Bresenham’s algorithm and the incremental approach (the simple approach we examined first)
Smooth v.s. flat shading
Interpolation
Triangle rasterization
Boundary conditions for triangle rasterization
Color interpolation for triangles
Homogeneous coordinates and their use
Why do we need/want a homogeneous coordinate system?
Transformations, matrices, how they’re implemented in OpenGL, and ordering of transformations
Why do we need 4 × 4 matrices in OpenGL? What do the extra row and column do?
Perspective
What is a matrix stack? Why is it useful?
What is a z-buffer? What does it store? How do you enable it in OpenGL?
OpenGL lighting. What is the process of enabling it? What parameters are required? How are these parameters affected by OpenGL state?
Basics of OpenGL texturing. How might you apply an image to a triangle, a plane, a cone, a sphere, a cow?

Computer Graphics Midterm Review - Fall 2007 - Prof. Christopher Wyman, Study notes of Computer Graphics

Related documents

Partial preview of the text

Download Computer Graphics Midterm Review - Fall 2007 - Prof. Christopher Wyman and more Study notes Computer Graphics in PDF only on Docsity!

22C:151 Computer Graphics Fall 2007 – Midterm Review

The midterm will be at 9:30-10:45 on Thursday October 18

The exam will be open book & open note. No calculator will be needed, though you may bring one (especially if

simplifying things like sin 60◦^ or cot 45◦^ is difficult).

The exam will mostly consist of short answer format questions. The basic idea of the exam will be to see if you

understand the concepts – determining if you can code is the job of the homeworks, not the exam. At most, you will

have to interpret code, not write it. None of the questions will be “trick” questions, and many of them will have simple

answers. If you know the concepts well, you may be done in half an hour. Those of you who need to refer to the book

for most questions will have difficulty finishing in the allotted time.

Things you may wish to review should you feel rusty:

Mipmapping will not be on the midterm exam, but I might ask about texturing problems that motive mipmaps.