Hi, I am currently working on my game framework (c++, GLFW 3.3.2, OpenGL 4.4). I would like to add to possibility to work with multiple windows. In that purpose, i start working with shared contexts. So i created a ‘useless’ window that is hidden and that just deserves to share its context with a…

Thank for your help. It seems i found what caused my issue. I want to share that knowledge. Vertex Array Objects (VAO) are not shared among shared context (I knew that) but i did not realized at first that two VAOs with same ID could exist at the same time (as soon as they belong to different cont…

[image] stephane: At first, this works fine, but as soon as i close one of the 2 games window the display collapses. GLFW itself does not close windows, it is your own code which calls glfwDestroyWindow. Are you accidentally closing all windows when glfwWindowShouldClose returns true for one? …

Thank you for your answers. Concerning the GAME window closure, i destroy a single window at a time with glfwDestroyWindow. The other remains alive but it becomes black or its rendering is corrupted. What thing i do not always make is unbind the resources after rendering in one context. for pseud…

Glad you found the issue, and thanks for posting the answer - that should help folk with similar problems!

GLFW Shared Contexts

support

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Can you please explain what context sharing then means? support	2	74	September 6, 2026
Sharing openGL context across multiple windows support	0	1069	June 25, 2015
Sharing the objects created at first window by all other windows support	1	630	November 2, 2022
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GL_INVALID_OPERATON when sharing objects between contexts support	7	1132	June 18, 2018

GLFW Shared Contexts

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