Hey, I found the culprit. I forgot to disable culling and depth tests and I assume the texture was too close to the camera and clipped. I've added:
glDisable(GL_DEPTH_TEST); glDisable(GL_CULL_FACE); and now it works great. Got the render time down from 50ms (at 4K) or 20ms (at 1080p) to ~1ms. Thanks for the help and the links to Giuseppe. Best, Stefan
_______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest