Actually all errors except the missing assimpl plugin problem went away when also setting environment variable QSG_RHI_BACKEND to opengl So the only open question now is how to get the assimp to work. And a new question is: why does it matter what QSG_RHI_BACKEND is set to when I already specified that qt3d should use opengl directly and not use opengl through RHI (which has limited functionality)
ons. 17. feb. 2021 kl. 10:59 skrev Daniel Patel <[email protected]>: > Thank you Mike for telling how to send in parameters correctly. For the > qt-configure-module.bat the syntax "-DFEATURE_qt3d_simd_avx2=ON" worked but > I didn't need to set it. The other syntax "-- -qt3d-simd=avx2" worked for > the qt6 configure script and I was able to tell it where zlib was by using > "configure -prefix C:\Qt\Qt-6.1 -debug-and-release -- > -DZLIB_LIBRARY=C:/Users/danie/vcpkg/installed/x64-windows/lib/zlib.lib -- > -DZLIB_INCLUDE_DIR=C:/Users/danie/vcpkg/installed/x64-windows/include" > I will try to use this for including zlib so that perhaps the "zlib.h not > found" error goes away when compiling qt3d6.0.1 (qt3d-everywhere-src-6.0.1) > > Currently I was able to compile qt3d6.0.0 (qt3d-everywhere-src-6.0.0), but > I had to first compile qt6, then add the qt3d folder and then compile qt3d. > If the qt3d folder is present when qt6 starts compiling, it tries to > compile qt3d folder as well, but fails. > Another thing is that when compiling qt6 with --paralell keyword, > sometimes I got an internal compiler error. But then I would just issue the > compile command again and it continued. > > After compilation, I copied the dlls over to the install folder according > to Pauls advice. > I tried out the qt3d examples (after setting environment variable > QT3D_RENDERER to opengl). Most worked, but a few didn't: > -multiviewport example gave error "Found no suitable importer plugin for > QUrl("qrc:/Gear_scene.dae")" > I also actually had this error when compiling qt5.15.2. It seems like > assimp is not made automatically anymore. > Is it because "Checking for Assimp", and "System Assimp" returns no as > shown below? > ------ > Checking for Assimp... no > Checking for Autodesk FBX... no > Qt 3D: > Assimp ................................. yes > System Assimp .......................... no > ----- > > -compute-particles and some other examples gave this error: ASSERT: > "QOpenGLContext::currentContext()" in file > C:\qtsrc\qt61\qt5\qt3d-everywhere-src-6.0.0\src\quick3d\imports\scene3d\scene3drenderer.cpp, > line 271 > > > tir. 16. feb. 2021 kl. 15:17 skrev Mike Krus <[email protected]>: > >> 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 | [email protected] | 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 <[email protected]> >> 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 <[email protected]>: >> > >> > >> > 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 <[email protected]>: >> >> 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 >> >>> >> >>> [email protected] >> >>> https://lists.qt-project.org/listinfo/interest >> >> -- >> >> Paul Lemire | >> >> [email protected] >> >> | 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 | >> > [email protected] >> > | 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 >> > [email protected] >> > https://lists.qt-project.org/listinfo/interest >> >>
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