CS 419v/519v -- Winter Quarter 2023

Test #2 Review

This page was last updated: March 9, 2023

Test dates and times:

The test will open Wednesday, March 22, 12:01 PM and will close Sunday, March 26, 11:59 PM
This gives you 107 hours, 58 minutes to take a 1-hour test.

Test Information:

• This will be a multiple choice test cast as a Canvas "Quiz".
• There will be 40 questions, worth 2.5 points each.
• You will have 60 minutes to complete it. Once you start, you need to finish. Canvas does not allow you to pause, leave, then come back and resume.
• The test is open notes and closed friends.
  Warning! "Open Notes" is not the same as "I don't need to study for it"! You will run out of time if you have to look up in the notes every one of the questions.
• Clearly, I cannot stop you from accessing information on the Internet. However, the test has been written against our class notes. If you miss a particular question, any protest of the form "But somethingsomething.com said that..." will be ignored.
• You are responsible for
  1. what is in the handouts
  2. what was said in class and the videos, including the Live Lectures
  3. what was covered on the quizzes
  4. what you have done in the projects

The test can cover any of the following topics:

• The Swap Chain
  Replaces OpenGL double-buffering
  Ring buffer
  Rendering and Presenting

• Push Constants
  What are they? How can they be used?
  When is the Push data pushed?
  Where does it go?
  Why does the Graphics Pipeline Data Structure Layout need to know your intended use?
  Robot matrix equations: [M n/g ] = [ M 1/g ] * [ M 2/1 ] * ... * [ M n/n-1 ]

• Physical Devices
  What does it mean to enumerate the physical devices?
  VK_PHYSICAL_DEVICE_TYPE_ possibilities: DISCRETE_GPU, INTEGRATED_GPU
  Asking about the Physical Device's features
  Different types of memory: host visible, device local

• Logical Devices
  Layers
  Extensions: _NV, _AMD, _EXT, _KHR

• Dynamic State Variables
  What are they used for?

• Getting Information Back from the Graphics System
  Occlusion Query -- what does this do for you?
  Pipeline Statistics -- don't have to know the list of what it can do
  Timestamp -- measures elapsed execution time in nanoseconds

• Vulkan Compute Shaders
  They are not part of the graphics pipeline.
  What they are good for, how to use them.
  The meaning of "data parallel".
  How the Compute Pipeline Data Structure differs from the Graphiics Pipeline Data Structure -- what do they have in common?
  The global id (gid) variable.
  Work-groups, work-items.
  vkCmdDispatch( )

• Specialization Constants
  What are they used for?
  Where in the setup process do they get used?
  Examples of use

• Synchronization
  Fences -- between the Logical Device and the Host
  Semaphores -- between queues
  Events -- Between Command Buffers

• Pipeline barriers
  What are they? What are they good for?
  Streets-analogy

• Multisampling
  What is aliasing?
  Difference between Multisampling and Supersampling
  Difference in number of fragment shader calls

• Multipass Rendering
  Directed Acyclic Graph-type structure
  "Attachments"
  Deferred Rendering with a Gbuffer

• Vulkan ray-tracing
  Five new shader types [ know what they are ]
  Ray-Triangle Intersection [ You are not responsible for the equations ]
  Acceleration structures

• More Information

The test can cover any of the following Projects:

• Project 3: Drawing using an Index Buffer

• Project 4: Instancing

• Project 5: Push Constants