I am looking for a "Hello World" type example that makes use of OpenGL-ES2 via SDL2. So far I could gather:
- SDL2 that ships with Raspbian does not support OpenGL-ES2 out of the box
- SDL-2.0.3 manually compiled from source should support OpenGL-ES2 in theory
However even with a manually compiled SDL-2.0.3 I can't get OpenGL-ES2 to work, the displays goes black, so something is working, but even a simple
glClearColor()/glClear() doesn't have any effect. The same code via EGL or run via OpenGL on a desktop computer however works as expected.
Source code is available at: https://github.com/Grumbel/rpi-opengl