Qt 6

Sure you can. You can clone the QtMultimedia sources.

@eefesafak said in Generating random Color as RGB value.:

How can I generate random color as RGB value in a QThread

In a RGB image each pixel consists of 3 numbers, so simply generate 3 random numbers and construct a pixel from those 3 numbers.
https://doc.qt.io/qt-5/qrandomgenerator.html
https://doc.qt.io/qt-5/qimage.html#setPixel-1

I stand corrected. I didnt' realize it until now, but when I've been working on Linux and cross-compiling for QNX QtCreator is inserting a -DCMAKE_TOOLCHAIN_FILE:PATH=%{Qt:QT_INSTALL_PREFIX}/lib/cmake/Qt6/qt.toolchain.cmake

Looking at that toolchain file one of the main things it does is make sure QT_HOST_PATH is defined.

@yangyanhui4
There is no "in-built" facility for that, you need to write it yourself. As @mchinand wrote the Flow Layout Example may give you a good starting point.

Qt 6 requires MingW-8 support in Ubuntu. Adding this PPA (https://launchpad.net/~cybermax-dexter/+archive/ubuntu/mingw-w64-backport) fixed the issue.

Sure with great pleasure,

After disabling texture and shader program, you should specify the matrix mode in glMatrixMode:

glMatrixMode(GL_PROJECTION) then load the projection matrix you used (call glLoadMatrixf)
glMatrixMode(GL_MODELVIEW) then load the modelview matrix. Transform it to identity.
Finally you can draw the coordinate system or any other object. In this case, the texture of the first object won't have any effect on any other object rendered after. ^^

@SGaist Hello again, I hope you're doing well.
Well, I used another method to render the object and rotate using quaternions.

Instead of specifying the matrix mode with
glMatrixMode(GL_MODELVIEW)

I used QMatrix4x4 class to create the model, view and projection matrices. So there is no need to load the modelview anymore.

Thank you so much for your help and patience.

thank you for your answer
i will post the code and the error tomorrow when getting to work

Just to close the loop, I was unable to prove you wrong, @SGaist . I bit the bullet and recompiled with qtwebengine enabled (no small feat!) and everything started working the way I remembered it. So I think I may have led myself astray with optimistic recall.

Hehe, no problem :)

@yangyanhui4 said in QT QtDataVisualization how to show QSurface3DSeries in QWidget:

But I want to show it in a fixed QWidget which is defined in a ui file

Then set this widget as parent of your Q3DSurface

I understand you are asking about QChart. If I understood correctly... As a solution you can add (x, y, z) image file that you have customized with QScatterSeries.