Qt5.12.9: Example:OpenGL/Cube doesnt work

SGaist

@DaJose said in Qt5.12.9: Example:OpenGL/Cube doesnt work:

Which driver: what you mean?

The version of the driver of your card. If too old, it might break, sometimes, too new will as well.

DaJose

Okay, I try to look for the newest. But I think I've got the latest driver.

So, I've installed the new driver but nothing changed. I only get a black screen

I' am using Visual Studio (c++) 2017

btw:
I only can answer after 10minutes :(

No Error messages...

SGaist

Any error message ?

DaJose

No error message.

BTW:
I can only answer after 10 minutes... that sucks a little bit :/

SGaist

Do the QWindow related examples work ?

DaJose

Yes, this works:
You mean the QOpenglwindow example from the OpenGL examples?

alt text

https://imgur.com/a/ce9DWX0

SGaist

One thing that is missing from the example is printing errors in case something goes wrong in the initShaders method. I would add some debugging information there.

DaJose

No error while compiling or linking or reading the shaders

DaJose

Maybe you got a simple VC 20017 project rendering something using IndexBuffer?
Maybe something is wrong with the settings...

Or I send you my project?

I have made a release and try to run it on another PC with the same result: just a blank black screen...

DaJose

Update/Edit:
Now I've tested the Cube-Example with Qt Version 5.9.7 => it works!!

It seems that Qt version 5.12. got a Bug when using IndexBuffer or something!!!

SGaist

Then test a more recent version to see if it's working better.

DaJose

Sure. But I use the precompiled version (Offline-Installer) and do not compile the source code. And Qt 5.12.9 is the latest release :/

SGaist

Do you mean latest version of the offline installer ? IIRC, it should rather be 5.14.

DaJose

Can you give me the link?
I only found this: https://www.qt.io/offline-installers

SGaist

Here

DaJose

Okay, I'm currently downloading it.

btw:
Works the OpenGL/Cube-Example on your side?
If the answer is yes: which system you are using? Windows or Linux? Which compiler?

DaJose

Okay, all fine. I made it work with VC2017 with Qt 5.14.2.

I am happy now :)

SGaist

There are more than just the header and code files for that project. Did you take the shaders and images into account ?

DaJose

What do you think? How should it work without shaders? :D
Of corse.

As I say it:
It works. Thanks for the link...

SGaist

@DaJose said in Qt5.12.9: Example:OpenGL/Cube doesnt work:

Okay, all fine. I made it work with VC2017 with Qt 5.14.2.

I am happy now :)

That was not your original message. You wrote that it was working with Qt Creator but not VS2017, hence my question about the other files of the project.

Anyway, glad you got it working.