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# QS10: Week 10 Survey Questions

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Question 2

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Question 4

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Question 6

📗 Question 7

Question 8

📗 Question 9

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📗 [1 points] Which of the following texture maps work with THREE.MeshStandardMaterial?

metalnessMap
roughnessMap
map
envMap
specularMap
None of the above.

📗 [1 points] Which of the following THREE.Object3D can cast shadow, i.e. if obj.castShadow = true works?

THREE.PointLight
THREE.SpotLight
THREE.Mesh
THREE.Camera
THREE.WebGLRenderer
None of the above.

📗 [1 points] Which types of textures work properly as THREE.MeshStandardMaterial.envMap?

THREE.CubeTexture
THREE.CanvasTexture
THREE.VideoTexture
THREE.DepthTexture
THREE.TextureLoader
None of the above.

📗 [1 points] Which of the following material properties work the best with environment maps envMap for a THREE.MeshStandardMaterial? Select the best one so that the resulting object looks like a mirror.

roughness = 0, metalness = 1
roughness = 1, metalness = 0
roughness = 0.5, metalness = 0.5
shininess = 0
shininess = 100
None of the above.

📗 [1 points] Which of the following triangles should be culled before shading?

None of the above.

📗 [1 points] Suppose there are only three triangles inside the camera frustum: triangle 1 has vertices 3, 4, 5 units away from the camera; triangle 2 has vertices 0, 1, 2 units away from the camera; triangle 3 has vertices 1, 1, 1 units away from the camera. Which of these triangles should be drawn first if painter's algorithm is used? Select all possible answers.

None of the above.

📗 [1 points] Suppose Z-Buffer algorithm is used and the current frame buffer at [x, y] has color c = rgb(200, 0, 0) and depth z = 10, and a new pixel with color c = rgb(0, 200, 0) and depth z = 5 is added. What is the new color and z value at [x, y]?

c = rgb(0, 200, 0), z = 5
c = rgb(100, 100, 0), z = 7.5
c = rgb(200, 0, 0), z = 10
c = rgb(100, 100, 0), z = 5
c = rgb(100, 100, 0), z = 10
None of the above.

📗 [1 points] Suppose Z-Buffer algorithm is used and the current frame buffer at [x, y] has color c = rgb(200, 0, 0) and depth z = 10, and a new pixel with color c = rgb(0, 200, 0) and depth z = 20 is added. What is the new color and z value at [x, y]?

c = rgb(200, 0, 0), z = 10
c = rgb(100, 100, 0), z = 15
c = rgb(0, 200, 0), z = 20
c = rgb(100, 100, 0), z = 20
c = rgb(100, 100, 0), z = 10
None of the above.

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# QS10: Week 10 Survey Questions

# Grade

# Submission