201707 SER332 Lecture 26
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This document contains slides for a final review in an introduction to graphics and game development class. It covers various topics that may appear on the final exam such as viewports in OpenGL, drawing basic shapes, vector and mesh data structures, textures, materials, procedural textures, camera navigation, display lists, animation, and linear algebra concepts. It also provides examples of questions that could be asked about these topics.
![Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 5
Vector Programming
• Given the arrays
vec3f vertices[NUM_VERTICES]; // float
vec3i indices[NUM_TRIANGLES]; // integer
• Write a procedure that returns the per-vertex
normal vector for a vertex with number index
vec3 computeVertexNormal(int index) {
}](https://image.slidesharecdn.com/ser332l26-review-170704073419/85/201707-SER332-Lecture-26-6-320.jpg)
![Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 6
Vector Programming
• Given the arrays
vec3f vertices[NUM_VERTICES]; // float
vec3i indices[NUM_TRIANGLES]; // integer
• Write a procedure that returns the per-face normal
vector for a face with number index
vec3 computeFaceNormal(int index) {
}](https://image.slidesharecdn.com/ser332l26-review-170704073419/85/201707-SER332-Lecture-26-7-320.jpg)
![Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 8
Mesh Data Structure
• Store values in the mesh data structure to define a
right-angled triangle at coordinates [0, 0, 0]. Legs
are aligned to axis X and Y, respectively. Its length is
50.](https://image.slidesharecdn.com/ser332l26-review-170704073419/85/201707-SER332-Lecture-26-9-320.jpg)
201707 SER332 Lecture 26
- 1. SER332 Introduction to Graphics and Game Development Lecture 26: Final Review Javier Gonzalez-Sanchez javiergs@asu.edu PERALTA 230U Office Hours: By appointment
- 2. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 1 Disclaimer These slides provide examples of common questions They are NOT comprehensive
- 3. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 2 Viewports • Divide the screen in two vertical view ports • Or, add a second viewport to show the score of a game
- 4. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 3 OpenGL • Write a short programming segment that draws the triangle fan shown below. • You do not have to worry about setting projections, opening windows, setting the camera, transformations, …. Just the code to draw the triangle fan. Make sure triangles are in counterclockwise order (0,1) (-3,3) (-1,5) (1,4) (3,2)
- 5. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 4 OpenGL glLoadIdentiy(); glTranslatef(10, 0, 0); glRotatef(45, 0, 0, 1); // draw a square from 0,0 to 10,10.
- 6. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 5 Vector Programming • Given the arrays vec3f vertices[NUM_VERTICES]; // float vec3i indices[NUM_TRIANGLES]; // integer • Write a procedure that returns the per-vertex normal vector for a vertex with number index vec3 computeVertexNormal(int index) { }
- 7. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 6 Vector Programming • Given the arrays vec3f vertices[NUM_VERTICES]; // float vec3i indices[NUM_TRIANGLES]; // integer • Write a procedure that returns the per-face normal vector for a face with number index vec3 computeFaceNormal(int index) { }
- 8. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 7 Mesh Data Structure Define a mesh data structure able to store: • vertex/faces, • normals per face, and • texture coordinates. You worked with one like this in your project 4.
- 9. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 8 Mesh Data Structure • Store values in the mesh data structure to define a right-angled triangle at coordinates [0, 0, 0]. Legs are aligned to axis X and Y, respectively. Its length is 50.
- 10. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 9 Textures • Given the BMP image shown below. Store values in the mesh data structure to apply a texture to the triangle defined above and make it looks like shown in the second image below BMP file Model
- 11. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 10 Textures Create a display list for a cylinder using triangles with a texture as done in the previous question.
- 12. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 11 Materials • Write the code to create a triangle that has the highest emissive values. It should be the brightest object in any scenario.
- 13. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 12 Materials • Write the code to create a triangle and apply Emerald material
- 14. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 13 Materials a) Is the shininess value for chrome greater than or lower than rubber? __________________ b) Are the diffuse constants for pearls greater than or lower than plastic (black)? __________ c) Are the specular constants for metals greater than or lower than pearl? ________________
- 15. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 14 Procedural Textures Which of the next equations is useful for (a) clouds, (b) marble, (c) fire
- 16. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 15 Navigation (Assignment 4) • Make the camera move autonomously from point A to point B. Given that the method scenario() return a display list with the four buildings described below. Buildings are 100x100x100 units
- 17. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 16 Display List Create a display list for: spaceship, ufo, asteroid
- 18. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 17 Animation • Move the spaceship using the keyboard • Move asteroids randomly • Move ufo around the screen
- 19. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 18 OpenGL • What does OpenGL stand for? • What does GLU stand for? • What does GLUT stand for? • Give three OpenGL commands as example?
- 20. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 19 Hardware Define the following terms: • refresh rate, • resolution, • frame buffer, • pixel, • aspect ratio, • depth of the frame buffer
- 21. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 20 Lines • Give an example of a line equation? • Give a line equation for the line l1. The line l1 contains the points (5,5) and (15,10).
- 22. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 21 Linear Algebra • Given three vertices of a triangle (v1, v2, v3), how can you compute the normal vector for v2?
- 23. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 22 Coordinate Systems • What is a right handed coordinate system? • What is a left handed coordinate system? • What is the difference between a right handed and a left handed coordinate system?
- 24. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 23 Fonts • Give one advantage and one disadvantage of a bitmap font. • Give one advantage and one disadvantage of an outline font.
- 25. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 24 Frame Buffer 1) How many bits does a frame buffer need for: o 1024 x 768 resolution o RGB values and alpha values and 8 bit z- buffer 2) How many bytes does a frame buffer need for: o 1000 x 1000 resolution o RGBA values o Double buffering
- 26. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 25 OpenGL • Write the glut command to request a display mode that has: double buffering and RGBA color values. • Write the glut command to request a display mode that has: single buffering and RGB color values
- 27. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 26 Projection • Camera Point (3,4,5) • Look at Point (6,3,2) • “up” vector (0,1,0)
- 28. Javier Gonzalez-Sanchez | SER332 | Spring 2017 | 27 Matrix • Add • Subtract • Dot Product • Cross Product • Multiply
- 29. SER332 Introduction to Graphics Javier Gonzalez-Sanchez javiergs@asu.edu Spring 2017 Disclaimer. These slides can only be used as study material for the class SER332 at ASU. They cannot be distributed or used for another purpose.