Hello, my code looks like this: if (!glfwInit()) printf("Failed to init glfw\n"); window = glfwCreateWindow(640, 480, title, NULL, NULL); if (!window) { glfwTerminate(); printf("Failed to create window\n"); } glfwMakeContextCurrent(window); if (glewInit() != GLEW_OK) printf("Failed…

Using both SFML and GLFW together sounds tricky. OpenGL contexts are per-thread state, and many OS event callbacks are per-process. I would advise using only one. SFML calls might be setting the context to their context, so if you don’t call glfwMakeContextCurrent(window) prior to your own OpenGL c…

Hi @DanielMendes , Welcome to the GLFW forum. Are you able to check any of the GLFW examples https://github.com/glfw/glfw/tree/master/examples ? It sounds like it could potentially be a driver related issue, so it would be worth testing other apps such as the OpenGL extension viewer which has a ren…

Hello Doug, thank you for your answer! I found the error. It is strange and has nothing to do with openGl. When I am loading textures with the SFML libray without even using them it causes this window flickering. When I don’t load the textures it is just fine

Ah okay thank you! Another question, not related to this: If I create a fullscreen window like this on ubuntu: GLFWvidmode const *const mode = glfwGetVideoMode(glfwGetPrimaryMonitor()); size = {mode->width, mode->height}; glfwWindowHint(GLFW_RED_BITS, mode->redBits); glfwWindowHint(GLFW_GREEN_BITS…

You need to specify the monitor to get it to go full screen, see the GLFW documentation on windowed fullscreen . Basically change your code to: GLFWvidmode const *const mode = glfwGetVideoMode(glfwGetPrimaryMonitor()); size = {mode->width, mode->height}; glfwWindowHint(GLFW_RED_BITS, mode->redBits…

No problem - these forums are here to help with exactly these sort of problems!

Hey…It’s me again :smile:… I really tried a lot of thinks but can’t wrap my head around it. When I did what you told me to the window was fullscreen and cleared correctly, but when I want to draw from one side to the other somehow OpenGL does not get the size of the window correctly. Everything is d…

Hi again @DanielMendes ! The full rendering code would need to be available to debug this properly, but I can help with a few hints. You might need to set the OpenGL Viewport with glViewport . This defaults to the size of the window when it is first created, but if your window size changes you’ll ne…

Window flickers

support

DanielMendes January 9, 2020, 9:57am 7

Ah okay thank you for your answer and for beeing so nice! I am sorry for wasting your time

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Window flickers

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