Render offscreen in Buffered Images

[jzy3d]

Ideas

Option 1 : Render offscreen, fetch image and add it to a classic AWT or Swing Canvas

• Pro : "not" complicated
• Cons : Pixels go from GPU to CPU, CPU make it a BufferedImage, then push to GPU to draw pixels again/
• Cons : Not sure OpenGL will agree to deal with the AWT Thread AND another application thread rendering offscreen (OpenGL is single threaded)

Implement FBO here, here and here.

• on macOS (available : GL_ARB_framebuffer_object, GL_EXT_framebuffer_object)
• on Linux (available : GL_ARB_framebuffer_object, GL_EXT_framebuffer_object) NO glGenFrameBuffersEXT
• on Windows

Create a context based on OS. Get inspiration from JOGL

• MacOSXCGLContext.createImpl : call to CGL.createContext requires generating CGL Panama bindings

• WindowsWGLContext.createImpl : call to WGL.wglCreateContext requires generating WGL Panama bindings

• X11GLXContext.createImpl : call to GLX.glXCreateContextrequires generating GLX Panama bindings

• EGLContext.createImpl : call to EGL.EGL.eglMakeCurrent

• What are external JOGL contexts? *ExternalContext inheriting each *Context?

• What EGL is worth for?