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https://www.kdab.com/opengl-in-qt-5-1-part-1/
This blog is the first in a series that will show how to use OpenGL with Qt 5. In this article, we shall take a very quick look at Qt’s historical support for OpenGL and then go on to describe the first batch of new features coming in Qt 5.1 that will enhance Qt’s OpenGL support.
https://stackoverflow.com/questions/3542718/installing-opengl-for-qt
I just have installed Qt 4 on windows 7. I am now in a bit of a confusion How do I get to install OpenGL so that it works with QT? Is there an installer for OpenGL? Qt docs. say it has support for ...
https://doc.qt.io/archives/qt-4.8/qt-opengl-cube-example.html
This example has been written for OpenGL ES 2.0 but it works also on desktop OpenGL because this example is simple enough and for the most parts desktop OpenGL API is same. It compiles also without OpenGL support but then it just shows a label stating that OpenGL support is required. The example consist of two classes:
https://doc.qt.io/archives/qt-4.8/examples-opengl.html
OpenGL Examples. Qt provides support for integration with OpenGL implementations on all platforms, giving developers the opportunity to display hardware accelerated 3D graphics alongside a more conventional user interface. These examples demonstrate the basic techniques used to take advantage of OpenGL in Qt applications.
https://forum.qt.io/topic/22957/qt-5-opengl-problem
This was done to ensure that QtQuick2 works on all windows machines, even those with crappy Intel OpenGL drivers. To get access to glBegin() etc which are not part of OpenGL ES 2 you need to build your own Qt5 and pass in the -opengl desktop option to configure. Qt 5.0.1 should hopefully also ship with such a pre-compiled Qt.
https://forum.qt.io/topic/17998/can-anyone-explain-qt-opengl-support-on-raspberry-pi-in-simple-english-please-63
Can anyone explain Qt OpenGL support on Raspberry Pi in simple English please? This topic has been deleted. Only users with topic management privileges can see it.
https://blog.nobel-joergensen.com/2012/11/25/opengl-3-2-using-qt-4-8/
Nov 25, 2012 · Cross-platform desktop OpenGL 3.2 using Qt 4.8. ... which is the latest version of OpenGL available on OS/X where the OpenGL support is strongly tied to the OS. OpenGL 3.2 core profile means support for geometry shaders, GLSL 1.50 and all the old fixed function pipeline functions are no longer available.
https://wiki.qt.io/Qt_5_on_Windows_ANGLE_and_OpenGL
OpenGL ES 2.0 (Open Graphics Library for Embedded Systems) is a stripped-down version of OpenGL for use on embedded systems, which is missing some functions. The Qt Quick 2 stack in Qt 5 is based on OpenGL, and requires OpenGL 3.0 (alternatively OpenGL 2.x with the framebuffer_object extension) or higher or OpenGL ES 2.0.
https://e2e.ti.com/support/legacy_forums/embedded/linux/f/354/t/468056?Qt4-8-5-opengl-es2
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https://devtalk.nvidia.com/default/topic/1047817/black-images-with-qt5-and-opengl/?offset=8
Oct 18, 2019 · The image is displayed black although it is valid. This does not happen on TX2. I tried two such cases: [olist] [.]qv4l2 application[/.] [.]custom application that uses an OpenCV build with Qt5 and OpenGL enabled to display images[/.] [/olist] When OpenCV is built with Qt5 and without OpenGL the image is displayed normally.
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