Young Wu's Homepage

# QS9: Week 9 Survey Questions

📗 Enter your ID (the wisc email ID without @wisc.edu) here: and click (or hit the "Enter" key)

📗 Your answers are not saved when you refresh or close the browser. You could print the page: , solve the problems, then enter all your answers at the end.

📗 For all questions except for the last one, you can select one or more choices. You get the point for the question only if you selected all the correct choices.

📗 Question 0

📗 Question 1

Question 2

📗 Question 3

Question 4

📗 Question 5

Question 6

📗 Question 7

Question 8

📗 Question 9

# Grade

* * * * *

* * * * *

📗 Please do not modify the content in the above text field: use the "Grade" button to update.

📗 Please wait for the message "Successful submission." to appear after the "Submit" button. If there is an error message or no message appears after 10 seconds, please email the instructor or make a Piazza post about it. You could submit multiple times (but please do not submit too often): only the latest submission will be counted.

📗 If there are problems with grading, please try Ctrl+F5 or Shift+F5 or Shift+Command+R or Incognito mode or Private Browsing to refresh the cached JavaScript.

📗 [1 points] Which of the following geometries can take in a let shape = new THREE.Shape();, a 2D shape, as a parameter?

THREE.ShapeGeometry(shape)
THREE.ExtrudeGeometry(shape)
THREE.LatheGeometry(shape)
THREE.TubeGeometry(shape)
THREE.BufferGeometry(shape)
None of the above.

📗 [1 points] To rotate an object cube = new THREE.Mesh(...); that is moving along a curve = new THREE.Curve(); and is current at curve.getPoint(t) so that it is facing the direction it is moving, where should the cube look at (what is the point p in cube.lookAt(p))?

cube.position.add(curve.getTangent(t))
curve.getPoint(t).add(curve.getTangent(t))
curve.getPointAt(t).add(curve.getTangentAt(t))
curve.getTangentAt(t)
curve.getTangent(t)
None of the above.

📗 [1 points] Which of the following are parametric surfaces in 3D with parameters u = 0 to u = 1 and v = 0 to v = 1? Do not include 3D curves as 3D surfaces.

[u, u, v]
[u, u + v, v]
[u, u, u]
[u, v]
[u, u]
None of the above.

📗 [1 points] Assuming no fake normals are used, what is the normal of a triangle face with vertices [0, 0, 0], [0, 1, 0], [0, 0, 1] (in this order)? Use the right-hand rule.

[-1, 0, 0]
[1, 0, 0]
[0, 0, 0]
[0, 1, 1]
[0, -1, -1]
None of the above.

📗 [1 points] Which of the following texture maps do not change the geometry (vertices) of a mesh? Technically, the question is asking which ones do not change the position of the vertices in the vertex shader.

normalMap
bumpMap
envMap
emissiveMap
displacementMap
None of the above.

📗 [1 points] Given vertices [0, 0], [0, 1], [1, 0] (in this order), where is the point with Barycentric coordinate [0.5, 0.5, 0]?

[0, 0.5]
[0.5, 0]
[0, 0]
[0, 1]
[1, 0]
None of the above.

📗 [1 points] Given vertices [0, 0], [0, 1], [1, 0] (in this order), what is the Barycentric coordinate of [1, 0]?

[0, 0, 1]
[0, 1, 0]
[1, 0, 0]
[1, 0]
[0, 1]
None of the above.

📗 [1 points] Which of the following THREE.Texture.minFilter use tri-linear interpolation to find the color of the pixel on a triangle?

THREE.LinearMipmapLinearFilter
THREE.NearestMipmapLinearFilter
THREE.NearestMipmapNearestFilter
THREE.LinearMipmapNearestFilter
THREE.LinearFilter
None of the above.

📗 [1 points] Please provide additional comments, questions, or feedback:

📗 [1 points] Have you completed the in-class quiz on TopHat?

Note: if you selected the second or third choice, you will get the same grade from this survey for the in-class quiz; if you selected the forth choice, you only have to complete the last question.

# QS9: Week 9 Survey Questions

# Grade

# Submission