Hi Assuming qt-configure-module.bat invokes qmake, the right way of passing the configure options is β-- -qt3d-simd=avx2β If itβs invokes cmake, then try -DFEATURE_qt3d_simd_avx2=ON
Mike β Mike Krus | mike.k...@kdab.com | Senior Software Engineer & Teamlead KDAB (UK) Ltd., a KDAB Group company Tel: UK Office +44 1625 809908 Mobile +44 7833 491941 KDAB - The Qt Experts, C++, OpenGL Experts > On 16 Feb 2021, at 13:31, Daniel Patel <danielpatel...@gmail.com> wrote: > > Using a space didn't work either. I will try to use cmake though. > The reason I wanted to use avx2 was to try to get rid of the compilation > error: Project ERROR: Could not find feature qt3d-simd-avx2 > > > tir. 16. feb. 2021 kl. 14:22 skrev Paul Lemire <paul.lem...@kdab.com>: > > > On 2/16/21 1:33 PM, Daniel Patel wrote: >> Thanks a lot for the reply Paul, it was useful as always. >> Copying the files made the qt3d examples work! >> I realized that the compile error showed up because qt6 itself was only >> compiled in debug mode. >> With the appropriate flag to the configure script, qt6 now compiles both in >> debug and in release. >> >> However, now when compiling qt3d I ran into the error : "Could not find >> feature qt3d-simd-avx2" (I already configured and compiled qt6 with -avx2 >> flag) >> I am just not able to tell/configure qt3d to use avx2 instead of sse2. >> Currently "qmake .." returns: >> Use SSE2 instructions .................. yes >> >> Use AVX2 instructions .................. no >> >> After running configure for the qt6 build I got this text as output: >> "To configure and build other Qt modules, you can use the following >> convenience script: >> C:/Qt/Qt-6.1/bin/qt-configure-module.bat" >> So i did a "c:\Qt\Qt-6.1\bin\qt-configure-module.bat >> qt3d-everywhere-src-6.0.0 --qt3d-simd=avx2" but that failed with "Unknown >> command line option '--qt3d-simd=avx2'" (I also tried -avx2-qt3d-simd and >> -qt3d-simd-avx2) >> Anyone knows how to set configure flags for qt3d before compiling it? > > What about -qt3d-simd avx2 (just a space)? That's what I use when compiling > on linux with qmake. For Qt 6, I've switched to cmake though, option to use > is -DFEATURE_qt3d_simd_avx2=ON on the cmake command line. > > That being said, the avx2 option for Qt 3D essentially only yields better > performance when we multiply matrices internally. The sse2 option is not much > slower, a lot faster than relying on QMatrix4x4 (though this might have > changed in Qt6, haven't checked). > > > >> >> On a side note I also was not able to get qt6 configure script to detect >> zlib libraries even though I set appropriate environment variables and sent >> in paths using both -D option as well as -I and -L option. >> >> man. 15. feb. 2021 kl. 11:47 skrev Paul Lemire <paul.lem...@kdab.com>: >> I can't really help about the compile issues. But I should be able to help >> regarding the plugin error. >> >> You likely need to copy a few more things from the qt3d build dir to your Qt >> install dir: >> >> qt3d_build_dir/qml/Qt3D into Qt_Install_Dir/qml/ >> >> qt3d_build_dir/qml/QtQuick/* into Qt_Install_Dir/qml/QtQuick/ >> >> qt3d_build_dir/plugins/* into Qt_Install_Dir/plugins/ >> >> (the plugins dir contains a renderers folder which contains the Qt3D render >> plugins) >> >> I hope that helps, >> >> Paul >> >> On 2/15/21 11:03 AM, Daniel Patel wrote: >>> 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 >>> >>> >>> _______________________________________________ >>> Interest mailing list >>> >>> Interest@qt-project.org >>> https://lists.qt-project.org/listinfo/interest >> -- >> Paul Lemire | >> paul.lem...@kdab.com >> | Senior Software Engineer >> KDAB (France) S.A.S., a KDAB Group company >> Tel: France +33 (0)4 90 84 08 53, >> http://www.kdab.fr >> >> KDAB - The Qt, C++ and OpenGL Experts >> > -- > Paul Lemire | > paul.lem...@kdab.com > | Senior Software Engineer > KDAB (France) S.A.S., a KDAB Group company > Tel: France +33 (0)4 90 84 08 53, > http://www.kdab.fr > > KDAB - The Qt, C++ and OpenGL Experts > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > https://lists.qt-project.org/listinfo/interest
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest
