[SOLVED] Display bug in latest 0.18 release version

[Gorgo13]

Hello, please find below the report of a display bug that I had on all release versions of FreeCAD 0.18.

This bug is not present in FreeCAD_0.18.15998_x64_dev_win (this version has not crashed at all since I installed it, and with rather highly complex parts and assemblies).

Regards. G13

FreeCAD information:
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16117 (Git)
Build type: Release
Branch: releases/FreeCAD-0-18
Hash: dbb4cc6415bac848a294f03b80f65e888d531742
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: French/France (fr_FR)

GRAPHICS CARD ADAPTER: AMD FirePro M4170

1. Start FreeCAD.
2. Create new project.
3. Select "Part Design" WB.
4. Create a simple object (either extrude a sketch or create a solid primitive from the "Part" WB).
5. Select the created object.
6. Modify the transparency value to a non-zero value. Notice the error message: Unhandled Base::Exception caught in GUIApplication::notify. The error message is: Access Violation
7. Try to manipulate the 3D view: the display is corrupted, updates are very slow, and the rendered object is corrupted. The 3D "gizmo hepler" (3D cube + axes) on the top-right corner has disappeared.
8. Set the transparency value back to zero: the display is now back to "realtime", but the display is still corrupted, i.e. mostly completely white faces, and manipulator gizmo helper reappears but is not correctly rendered.

See attached pictured illustrations.

[papyblaise]

salut
and if you do "Zoom all , did the bug perciste

[alberich]

I do not find this behavior with

Code: Select all

OS: Linux Mint 19.1
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16117 (Git) AppImage
Build type: Release
Branch: (HEAD detached at 0.18.2)
Hash: dbb4cc6415bac848a294f03b80f65e888d531742
Python version: 3.6.7
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)

Intel graphics card

[Gorgo13]

Hello papyblaise

salut
and if you do "Zoom all , did the bug perciste

Yes it persists (tu parles bien du bouton "afficher l'ensemble du contenu à l'écran"?)

It must probably be a graphics driver problem, but oddly this does not happen on some dev versions (the one I've metionned at the beginning of my post).

G. Treize

[Exekute]

I'm having the same issue.

RX580 graphics card using the latest driver (19.6.3)

[TheMarkster]

Download the latest 0.19 release on the releases page. It works for me. Also the python2 / qt4 version of 0.18 works.

[openBrain]

This bug is not present in FreeCAD_0.18.15998_x64_dev_win (this version has not crashed at all since I installed it, and with rather highly complex parts and assemblies).

Salut G13, welcome on the forum,

Could you give the full FC info about the working release. I'd bet it's a Qt4 one.

[Gorgo13]

Hello all,

thank you for your replies.

Salut G13, welcome on the forum,

Could you give the full FC info about the working release. I'd bet it's a Qt4 one.

merci.... the FC info for the working version I'm using is:

OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15998 (Git)
Build type: Release
Branch: master
Hash: 5791c341be797ff2eee99eccac53df71db510fae
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: French/France (fr_FR)


quite different versions for Python, Qt and OCC... how can I fix this then?

[openBrain]

You could live some time with Qt4 build but this isn't a sustainable solution.
From another topic, it seems that Qt5. 12.1 solves some issues. Could you try this dev release to confirm?

[Gorgo13]

openBrain, yes it's working!

So what should I expect for the next 0.19 release version?... should it still work?