ar games using vuforia sdk coursera week 2 answers

Spawn the portal quiz

1. Which of the following are inputs required to instantiate a new GameObject into an AR scene? Select all that apply.

  • Detection
  • Rotation
  • Position
  • Original

2. For the Original input, select the prefab you want to instantiate. You set your app to detect either ____________ or ____________ planes. Once you have defined the plane type of your choosing, you will select the appropriate portal located in

  • Vertical
  • GameObject
  • Horizontal
  • Prefab

3. If you select a vertical portal prefab, you will need to correct your portal’s spawn ________________. Select the best answer.

  • Position
  • Origin
  • Instantiation
  • Rotation

4. Because portals are generated continuously while the user’s finger is touching the screen, use a(n) __________________ to limit the number of times a sequence runs. Select the best answer.

  • Sequence
  • Instantiation
  • Boolean
  • String node

5. If the node sequence runs repeatedly, spawning many portals, use the __________ , which has Boolean Condition input, and will allow you to plug in a Boolean and initiate one sequence. Select the best answer.

  • Position of the new instance
  • Plane detection app
  • Build settings
  • If node

Optimize the scene quiz

6. Because vertical portal windows don’t spawn correctly in relation to the world, you need to _________ _________ the window vertically during the editing process. Select the best answer.

  • temporarily rotate
  • Transform through
  • permanently rotate
  • rotate with

7. From a user’s perspective, what is the most important measure of an app’s performance? Select the best answer.

  • UI overlay
  • Plane detection
  • Ability to keep score
  • Frame rate

8. Which of the following statements about performance requirements and optimizing your app are true? Select all that apply.

  • Complex models and real-time lights are examples of elements that can cause your app’s fps to drop.
  • All 3D models, textures, lighting and characters can work with any performance requirements.
  • Interactive elements have the same performance considerations as apps where image quality is a higher priority.
  • 60 fps is recommended for most apps with interactive elements.

Shuffle Q/A 1

9. Which of the following statements are examples of how to optimize mobile apps? Select all that apply.

  • Create scenes with fewer materials.
  • Use real-time lights, which require less processing than lights that continuously run.
  • Create simpler models that are easier on the processor by using high poly assets.
  • Avoid materials with transparency.

10. Which of the following statements best describes optimization? Select all that apply.

  • Optimization is important in order to make sure all the elements of your AR app are running efficiently, from scripts to lights, 3D models to animation.
  • Optimization is especially important when developing for mobile devices because they tend to have lower processing power.
  • Although 30 to 60 fps is preferred, 15 fps can be acceptable.
  • A simple, step-by-step process is applied at the launch of your app that will make sure that what you’ve created will work on any device, including mobile devices.
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