Qt Quick 2.0 & OpenGL (ES 3.0) & GLEW
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So I started working on a small project around OpenGL ES 3.0.. I want to build it around Qt Quick 2.0 (using Qt 5.2 RC1 for now) and took this example as the starting point: http://qt-project.org/doc/qt-5.0/qtquick/scenegraph-openglunderqml.html
However I want to run this on desktop builds as well so I need GLEW and this does not play along at all with #import <QOpenGLContext>. I am writing portable opengl code so I will not use the QTOpenGL stuff except for bootstrapping / getting a context to draw on.
Is there any way around this?
- Matti
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Hi,
Why not use the "QAbstractOpenGLFunctions":http://qt-project.org/doc/qt-5.1/qtgui/qabstractopenglfunctions.html classes ? You wouldn't need glew that way
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As a Qt's c++ API this is not portable; what I'm looking for is a way to use the standard OpenGL C API. With Qt 4 I used QGLWidget based structure, with GLEW providing the API on desktop and GLES 2.0 providing it on the device builds.
- Matti
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Also there seems not to be support for GLES 3.0 - I see QOpenGLFunctions_ES2 but not QOpenGLFunctions_ES3.
Wonder if its possible to force a GLES 3.0 context for a QQuickWindow and then dig the missing function addresses up with QOpenGLContext::getProcAddress().
- M
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Cannot seem to find an up-to-date roadmap for Qt 5.x. Would be immensely interested to hear when GLES 3.0 support is coming since such devices already exist on the market.
- Matti
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You should then ask on the interest mailing list, you'll have more chances to get an answer
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Matti,
It appears that GLEW works with Qt, although I've seen nothing official about support. See this "post":http://stackoverflow.com/questions/17123100/glew-and-qt5-redefinition-of-headers
I've looked for roadmaps for Qt and Qt Creator but haven't found anything useful. Let us know if you find anything.
Steve
