[Interest] Qt5.8 qt3d examples not working

[Lukáš Sedláček]

Hello,

I have just got my Raspberry Pi3 (using raspbian lite without pixel - 
only linuxfb/eglfs) and I am having problems to run Qt3d examples (which 
will be very useful to for me). I cross compiled Qt5.8 library 
downloaded from download.qt.io using this tutorial 
https://wiki.qt.io/RaspberryPi2EGLFS. Everything went just fine, I only 
used another configure options:

-opengl es2 -optimized-qmake -no-pch -make libs -make tools 
-reduce-exports -sysroot /home/lukas/raspberry/sysroot -device 
linux-rasp-pi2-g++ -device-option 
CROSS_COMPILE=/home/lukas/raspberry/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf- 
-prefix /usr/local/rasp  -opensource -nomake  examples -nomake tests 
-confirm-license -skip qtmultimedia -skip qtcharts -skip qtsensors -skip 
qtgamepad -skip qtmacextras -skip qtandroidextras -skip qtwayland 
-prefix /usr/local/qt5pi -extprefix /home/lukas/raspi/qt5pi -hostprefix 
/home/lukas/raspi/qt5

Every qt3d example is compiled just fine, but when I run any of the 
examples it is not working. Few examples look like everything working 
just fine (I have also tried to enable logging by no error occurs) but 
nothing is rendered. Few other examples are crashing on fragment shader 
with error message:

Failed to link shader program: ERROR:OPTIMIZER-3 (fragment shader, line 
41) Support for for loops is restricted : right side of condition 
expression must be constant
Segmentation fault

My settings is:
- Raspberry Pi 3 using raspbian lite without pixel
- Host PC is Linux Mint 17.2 64bit
- I want to use qt3d without X11 or Wayland if possible!

Output from "ldd simple-qml"
     linux-vdso.so.1 (0x7eec6000)
     /usr/lib/arm-linux-gnueabihf/libarmmem.so (0x76f29000)
     libQt53DExtras.so.5 => /usr/local/qt5pi/lib/libQt53DExtras.so.5 
(0x76ec8000)
     libQt53DQuickExtras.so.5 => 
/usr/local/qt5pi/lib/libQt53DQuickExtras.so.5 (0x76ec2000)
     libQt5Concurrent.so.5 => /usr/local/qt5pi/lib/libQt5Concurrent.so.5 
(0x76ebd000)
     libQt53DRender.so.5 => /usr/local/qt5pi/lib/libQt53DRender.so.5 
(0x76d12000)
     libQt53DInput.so.5 => /usr/local/qt5pi/lib/libQt53DInput.so.5 
(0x76c9e000)
     libQt53DLogic.so.5 => /usr/local/qt5pi/lib/libQt53DLogic.so.5 
(0x76c92000)
     libQt53DQuick.so.5 => /usr/local/qt5pi/lib/libQt53DQuick.so.5 
(0x76c73000)
     libQt53DCore.so.5 => /usr/local/qt5pi/lib/libQt53DCore.so.5 
(0x76c2b000)
     libQt5Quick.so.5 => /usr/local/qt5pi/lib/libQt5Quick.so.5 (0x768d5000)
     libQt5Gui.so.5 => /usr/local/qt5pi/lib/libQt5Gui.so.5 (0x76463000)
     libQt5Qml.so.5 => /usr/local/qt5pi/lib/libQt5Qml.so.5 (0x760f6000)
     libQt5Network.so.5 => /usr/local/qt5pi/lib/libQt5Network.so.5 
(0x75f95000)
     libQt5Core.so.5 => /usr/local/qt5pi/lib/libQt5Core.so.5 (0x75af0000)
     libGLESv2.so => /opt/vc/lib/libGLESv2.so (0x75acb000)
     libpthread.so.0 => /lib/arm-linux-gnueabihf/libpthread.so.0 
(0x75aa3000)
     libstdc++.so.6 => /usr/lib/arm-linux-gnueabihf/libstdc++.so.6 
(0x759c6000)
     libm.so.6 => /lib/arm-linux-gnueabihf/libm.so.6 (0x7594b000)
     libgcc_s.so.1 => /lib/arm-linux-gnueabihf/libgcc_s.so.1 (0x7591e000)
     libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0x757dd000)
     libpng12.so.0 => /lib/arm-linux-gnueabihf/libpng12.so.0 (0x757ac000)
     libz.so.1 => /lib/arm-linux-gnueabihf/libz.so.1 (0x75785000)
     librt.so.1 => /lib/arm-linux-gnueabihf/librt.so.1 (0x7576e000)
     libicui18n.so.52 => /usr/lib/arm-linux-gnueabihf/libicui18n.so.52 
(0x755ae000)
     libicuuc.so.52 => /usr/lib/arm-linux-gnueabihf/libicuuc.so.52 
(0x75465000)
     libicudata.so.52 => /usr/lib/arm-linux-gnueabihf/libicudata.so.52 
(0x73de7000)
     libdl.so.2 => /lib/arm-linux-gnueabihf/libdl.so.2 (0x73dd4000)
     libgthread-2.0.so.0 => 
/usr/lib/arm-linux-gnueabihf/libgthread-2.0.so.0 (0x73dc2000)
     libglib-2.0.so.0 => /lib/arm-linux-gnueabihf/libglib-2.0.so.0 
(0x73cbf000)
     /lib/ld-linux-armhf.so.3 (0x54b6f000)
     libEGL.so => /opt/vc/lib/libEGL.so (0x73c86000)
     libbcm_host.so => /opt/vc/lib/libbcm_host.so (0x73c5f000)
     libvchiq_arm.so => /opt/vc/lib/libvchiq_arm.so (0x73c49000)
     libvcos.so => /opt/vc/lib/libvcos.so (0x73c2f000)
     libpcre.so.3 => /lib/arm-linux-gnueabihf/libpcre.so.3 (0x73bbc000)

Do I miss something? I have already tried same steps on Raspberry PiB+ 
but the result was just same.

Thanks for any answer.

-- 
S pozdravem,
Lukáš Sedláček