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I am a beginner in Qt and wanted to learn about 3D rendering in Qt. The first thing the official document http://doc.qt.io/qt-5/qt3d-index.html stated was to add the following line to its qmake .pro file:

QT += 3dcore 3drender 3dinput 3dlogic 3dextras 3danimation

However, running qmake after adding this line gave me an unknown module error:3danimation. I read this previous posted question Unknown module(s) in QT. The solution stated to use 

QT += 3dcore 3drender 3dinput 3dlogic

This solution worked for me but I have also read that 3danimation contains various important classes from the Qt3DAnimation module. My question is that why following the official documentation gave me this error. Did I miss something. This question may sound very nooby, but I would appreciate if someone could explain this to me. Thanks in advance. BTW, I am using Qt creator 4.2.0 (based on Qt 5.7.1).

RAM
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Rishu Singh
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1 Answers1

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Because the Qt5 documentation follows the latest release which is Qt 5.10 at the moment and you are using older release (5.7).

If you take a look at archived Qt3D in Qt 5.7 documentation you can see that 3danimation is not mentioned there. According to this blog post the technology preview of the Qt3D Animation module was released first time as part of Qt 5.9.

You should move to a newer release if you want to use Qt3D Animation. I would recommend Qt 5.9 which is LTS (long time support) release. At the moment, Qt 5.9.5 is the newest version.

talamaki
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  • Thanks for the help. Now that you have mentioned it, I feel like a noob for not checking the proper document for the particular version. Also I didn't knew that new version of Qt with LTS is released. I guess you learn new things everyday. Thanks for the info. – Rishu Singh May 03 '18 at 06:36