notes/VulkanNotes.org

#+TITLE: Vulkan Notes
#+AUTHOR: Mars (@pupbrained)
#+EMAIL: mars@pupbrained.xyz

* Main Data Structures

** Instance
*** The most important part

- Purpose :: Serves as the connection between the application and Vulkan itself.
- Usage :: Call src_c++{vk::CreateInstance} and pass in an src_c++{InstanceCreateInfo} object
  - Note :: Anything starting with src_c++{p} / src_c++{pp} is a pointer / pointer to a pointer, respectively.

#+begin_src c++
  vk::ApplicationInfo appInfo {
    .pApplicationName   = "Vulkan App",    // App name
    .applicationVersion = 1,               // App version
    .pEngineName        = "No Engine",     // Engine name
    .engineVersion      = 1,               // Engine version
    .apiVersion         = vk::ApiVersion10 // API compatibility version
  };

  vk::InstanceCreateInfo createInfo {
    .pApplicationInfo        = &appInfo, // ApplicationInfo object
    .enabledLayerCount       = 0,        // # of enabled layers
    .ppEnabledLayerNames     = nullptr,  // Names of enabled layers
    .enabledExtensionCount   = 0,        // # of enabled extensions
    .ppEnabledExtensionNames = nullptr   // Names of enabled extensions
  };

  vk::Instance instance = vk::createInstance(createInfo);
#+end_src

** DebugUtilsMessenger
*** Used by validation layers

** CreateInfo
*** Information for creation of various objects