QOpenGLTexture and Shared QOpenGLContext glitches

[garfunkheul]

Hi,

I'm trying to generate QOpenGLTextures into a separated thread to avoid waisting time uploading textures into the main thread. However I see a lot of glitches, sometimes the "texture" shown is my desktop or any other image stored in the framebuffer.

As a result, I'm not sure I have the right to do that. Do I need to use a QOpenGLFramebufferObject? If yes, how to create a texture into a QOpenGLFramebufferObject from a QImage

Thank you.