MauiOpenGL

KO | EN

gitlite — search

#javascript #hacktoberfest #react #android #deep-learning #docker #java #nodejs #awesome #cli #kubernetes #vue #pytorch #openai

(★ 13)

This is a project for testing OpenGL through OpenTK in .NET MAUI

MauiOpenGL Latest Version Download

Download Latest Version (.zip)

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

# About MauiOpenGL Project

This Project is for trying out using OpenTK in MAUI App

The first implemented part  is a MAUI Handler  to a native  inherited Android GLSurfaceView

To use OpenTK:

- First you need to get it from its corresponding nuget package.
- Second a binding of its functions should be done  .. please have a look inside  `AndroidOpenTKBindingContext`
- In the MauiOpenGLHandler  in the `CreatePlatformView`  .. the `GL.LoadBindings(OpenTKBinder);`  were called  .. then the native view of android were created
- Rendering occurs in the `AndroidOpenGLRenderer`  ..  in this location  you can use  the Android GLES20  class or the OpenTK  GL  class .. the two apis will work.

please note that binding to the functions .. I needed to use P/Invoke       `[DllImport("/system/lib64/libEGL.so", EntryPoint = "eglGetProcAddress")]` in the implemented class.

The folder of  **/system/lib64/libEGL.so**   was the one succeeded in the emulator and Xaiomi phone.   but I can't gaurantuee it will work on the other devices.

## Note

please check the MauiProgram in the app to make sure that you've included your new created view in the maui handlers

```
.ConfigureMauiHandlers(handlers =>
{
	handlers.AddHandler(typeof(MauiOpenGLView), typeof(MauiOpenGLHandler));
})
```

# Windows Handler

**Maui** uses WinUI3 inside its handler .. so to be able to use OpenGL ES you will have to rely on  Google **ANGLE**  (*Almost Native Graphics Layer Engine**) project.

however the dll that is being used (as far as I know from this issue https://github.com/mono/SkiaSharp/issues/1893  is actually not targetting WinUI3 yet  .. but only targetting the **WinRT** API.

so .. thanks to @levinli303 https://github.com/levinli303  and his patched dll .. found in https://github.com/mono/SkiaSharp/issues/1893#issuecomment-1805076715

and also can be found in his repo https://github.com/microsoft/vcpkg/compare/master...levinli303:vcpkg:angle-winui

also thanks to **SkiaSharp** project  (I used their code in creating the Windows SwapChainPanel)

the windows part can be shown beside the android one on the below snapshot

## Future

Naturally  ..  Apple and IOS  should be the focus on the future  ..  but I don't have such devices for now.

## Finally

This repo is a proof of concept for using OpenTK in Maui  ..  the code is **Spaghetti**  and it is not a production thing by anymean  .. so take it with (two or three) grain of salt :D

Thank you,

Sadek

![alt text][logo]

[logo]: MauiOpenGL.png "Maui Open GL"

MauiOpenGL

MauiOpenGL Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

MauiOpenGL

MauiOpenGL Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

Download README