So when I boot my GLES3 game up on my Android device, it shows a black screen, even when GLES2 fallback is enabled. Is there a way to show a message stating that it's not supported, instead of showing a blank screen?
It's probably a better idea to always use GLES2 on Android, as many devices claim to support GLES3 but do so very poorly in practice. (Mobile graphics drivers are much worse than desktop graphics drivers when it comes to OpenGL compliance.)