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Tweaks

omar 2021-08-07 19:16:57 +02:00
parent c346cc96c2
commit 3e8bcccdff
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Integrating-with-Vulkan.md

@ -10,7 +10,7 @@ Note: I am using Vulkan-HPP headers, but you can certainly use the vulkan.h head
# Implementation # Implementation
## ImGui Header Files ## Dear ImGui Header Files
* `imconfig.h` * `imconfig.h`
* `imgui.h` * `imgui.h`
@ -19,17 +19,17 @@ Note: I am using Vulkan-HPP headers, but you can certainly use the vulkan.h head
* `imstb_textedit.h` * `imstb_textedit.h`
* `imstb_truetype.h` * `imstb_truetype.h`
## ImGui Source Files ## Dear ImGui Source Files
The ImGUI source files you're going to need is. The source files you're going to need are:
* `imgui.cpp` * `imgui.cpp`
* `imgui_demo.cpp` (optional) * `imgui_demo.cpp`
* `imgui_draw.cpp` * `imgui_draw.cpp`
* `imgui_tables.cpp` * `imgui_tables.cpp`
* `imgui_widgets.cpp` * `imgui_widgets.cpp`
## Vulkan Components that is needed for ImGui ## Vulkan Components that are needed for Dear ImGui
- `VkInstance` - `VkInstance`
- `VkPhysicalDevice` - `VkPhysicalDevice`
- `VkDevice` - `VkDevice`
@ -43,7 +43,7 @@ The ImGUI source files you're going to need is.
## Initialize ## Initialize
First we need to initialize Vulkan. You should already have done so if you're following the (vulkan-tutorial)[https://vulkan-tutorial.com/]. After getting Vulkan running, we can start an ImGui context. It's recommended to create a seperate `VkDescriptorPool`, `VkRenderPass`, `VkCommandBuffer`, and `VkFramebuffer`. First we need to initialize Vulkan. You should already have done so if you're following the (vulkan-tutorial)[https://vulkan-tutorial.com/]. After getting Vulkan running, we can start an Dear ImGui context. It's recommended to create a seperate `VkDescriptorPool`, `VkRenderPass`, `VkCommandBuffer`, and `VkFramebuffer`.
```c++ ```c++
ImGui::CreateContext(); ImGui::CreateContext();
@ -51,7 +51,7 @@ ImGuiIO& io = ImGui::GetIO(); (void)io;
ImGui_Impl{platform}_InitForVulkan(window, true); ImGui_Impl{platform}_InitForVulkan(window, true);
``` ```
After starting an ImGui context, we give ImGui some of the application Vulkan bindings through an `ImGui_ImplVulkan_InitInfo` struct. We then call `ImGui_ImplVulkan_Init()` passing in a pointer to the `ImGui_ImplVulkan_InitInfo` and a `VkRenderPass`. This will initalize Vulkan for ImGui. After starting its context, we give Dear ImGui some of the application Vulkan bindings through an `ImGui_ImplVulkan_InitInfo` struct. We then call `ImGui_ImplVulkan_Init()` passing in a pointer to the `ImGui_ImplVulkan_InitInfo` and a `VkRenderPass`. This will initalize Vulkan for Dear ImGui.
We then upload font textures to the GPU. We then upload font textures to the GPU.
@ -83,7 +83,7 @@ ImGui::NewFrame();
### Ending Frame ### Ending Frame
When we end the frame, we want to build the model so we can render this to the screen. When we end the frame, we want to build the model so we can render this to the screen.
```c++ ```c++
ImGuiIO& io = ::ImGui::GetIO(); ImGuiIO& io = ImGui::GetIO();
ImGui::Render(); ImGui::Render();
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable){ if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable){
ImGui::UpdatePlatformWindows(); ImGui::UpdatePlatformWindows();