Thanks Bruce. find /usr -name BRepAlgo_AsDes.hxx /usr/include/opencascade/BRepAlgo_AsDes.hxx Below is the section of the netgen configure script that you will want to examine and possibly change: But it's not the same content after applying your patch, re: Ah, sorry about that. I have regenerated a...

I enabled Anti-aliasing on macOS and I still do not experience any sort of flicker during resize. While exploring the undock exception a bit more, I found this enum QSurfaceFormat::SwapBehavior that states under QSurfaceFormat::SingleBuffer that it can result in flickering. I realize that we seem to...

I'm in need of help on netgen again :? EDIT: see my reply below, it seems to require patching, I'll try that tomorrow... Any pointers would be appreciated. Thanks! Happy to give it a go... 1) First, make is failing to find the OpenCascade include file BRepAlgo_AsDes.hxx . The author hardwired the i...

After a bit more testing I found a few more major problems: Box zoom/selection/cutting: as soon as starting this mode the content of the 3d view disappears. When leaving this mode everything is fine again. The class Flag is ported to QOpenGLWidget now but somehow the lines are not updated when movi...

I first wanted to make a few more things working in case they are not too hard to solve. Sounds great! If you want, I'de be happy to submit a PR to your branch that will activate QTOpenGL for the macOS builds so once you commit/merge, the macOS builds will take advantage of it... Another, perhaps b...

Some more reference on what is possible with QOpenGLWidget and wasn't possible with QGLWidget: P.S. This is a raw prototype and to achieve such things different approach will likely end up being used at some point in the future. But nonetheless it clearly shows the progress was made! Awesome! This ...

And can you confirm that it finally fixes 1401 ? Yes, with these changes, 1401 is finally resolved. That bug always manifest itself when showing the dependency graph on macOS - you would end up with a small, unmovable 3d-view of the object that overlaid the graph and couldn't be moved. All clean no...

NormandC wrote:Success!

Awesome work!

Thanks a lot! This is a big step forward since the 3d viewer basically works again. However, there are two problems: When resizing the 3d viewer it flickers heavily In debug mode it creates a lot of error messages: Coin error in SoNode::GLRenderS(): GL error: 'GL_INVALID_OPERATION', nodetype: Separ...

Now to the QOpenGL* port: I have moved this branch https://github.com/wwmayer/FreeCAD/tree/qtopengl If someone wants to test you have to set the option BUILD_QT5 of course and additionally the option FREECAD_USE_QTOPENGL_WIDGET which is off by default. Gave this a shot with clang on macOS but it fa...