Can't call glGenTextures on multithreaded android app

Question

I\'m making an OpenGLES Android app using Android NDK, expanding from android\'s gljni example, which can be found here

It\'s using GLSurfaceView. Textures are initi

Answer 1

It's not random behaviour, that's how OpenGL interacts with threads. A context is only current on only ONE thread, other threads don't have a GL context unless you specifically create a context for each thread you want to use with OpenGL. Without a context, all GL calls fail.