[Interest] Trouble compiling qt3d for qt6 on windows 10

[Daniel Patel]

I have compiled qt6.1 from source which works and now I am trying to
compile qt3d also from source by downloading from
https://download.qt.io/official_releases/additional_libraries/qt3d/6.0/6.0.0/
and following the qmake instructions from:
https://www.kdab.com/getting-your-3d-ready-for-qt-6/

I first tried to download and compile qt3d-everywhere-src-6.0.1 but got an
error about missing zlib.h. Instead of trying to fix this I quickly instead
tried with qt3d-everywhere-src-6.0.0 and this compiled fine.
However it only compiled debug dlls and not release dlls. I tried to do
nmake all and nmake release but the latter gave the error "NMAKE : fatal
error U1073: don't know how to make
'C:\qtsrc\qt61\qt5\qtbase\lib\Qt6Gui.lib'"

I then decided to try out the debug build. First I noticed that the qt3d
dlls didnt seem to have been copied over to the correct folder when I did
nmake install. So I copied them over manually and then started
basicshapes-cpp.exe, but this showed the runtime error: Unable to find
renderer plugin for opengl.
Any hints for what to do?

Best
Daniel
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