纹理小部件呈现 OpenGL 示例

Question

我的 Flutter 应用需要显示 3d 模型并允许用户旋转它。我通过本机视图 (ViewController & Activity) 和用于渲染的 C++ 代码实现了这一点，下一步我尝试 Texture widget to remove native views and use only Flutter. I managed to display OpenGL rendering on iOS via FlutterTexture, but don't understand how to implement on Android. Could you show any examples how to use OpenGL with SurfaceTexture 并将其连接到纹理小部件？

Answer 1

SurfaceTexture 应在配置 OpenGL 堆栈时传递给 eglCreateWindowSurface。

我花了一段时间构建了示例项目和文章： https://github.com/mogol/opengl_texture_widget_example https://medium.com/@germansaprykin/opengl-with-texture-widget-f919743d25d9

private void initGL() {
    egl = (EGL10) EGLContext.getEGL();
    eglDisplay = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);

    int[] version = new int[2];
    egl.eglInitialize(eglDisplay, version);

    EGLConfig eglConfig = chooseEglConfig();
    eglContext = createContext(egl, eglDisplay, eglConfig);

    eglSurface = egl.eglCreateWindowSurface(eglDisplay, eglConfig, texture, null);

    egl.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext);
}

纹理小部件呈现 OpenGL 示例

Texture widgets render OpenGL example

android

opengl-es

flutter