Aardvark.Rendering.ImGui

Wrapper and Aardvark backend for Dear ImGui. Allows users to quickly build GUIs for their applications without having to worry about state synchronization between the application and the user interface.

Integration

1. Reference Aardvark.Rendering.ImGui in your project.
2. Initialize ImGui for your window:

   use gui = window.InitializeImGui()
   

   The window must be created with a GLFW application (Aardvark.Application.Slim or Aardvark.Applcation.Utilities). If you use the window builder, call window.Control.InitializeImGui() instead.
3. Define your GUI by setting the render function of ImGui:

   gui.Render <- fun () ->
       ImGui.ShowDemoWindow()
   

   This function is called every frame to render the GUI. The methods from the ImGui class contain all the relevant widgets and controls. For convenience, Aardvark.Rendering.ImGui provides variants for cval and other Aardvark-specific types. As a reference, take a look at the demo window and its source code.
4. Add the GUI to your scene graph:

   let cmd = RenderCommand.Ordered [scene; gui]
   window.Scene <- Sg.execute cmd
   

   Note that Aardvark.Rendering.ImGui.Instance implements ISg and can be added to the scene graph directly. Make sure that the GUI is rendered after the rest of the scene graph by using render commands.