View Issue Details

IDProjectCategoryView StatusLast Update
0003522FreeCADBugpublic2018-10-15 20:56
ReportermaxvAssigned To 
Status newResolutionopen 
PlatformOSLinux, WindowsOS Version
Product Version0.17 
Target Version0.18Fixed in Version 
Summary0003522: Save Image creates incorrect result with transparency
if you use [b]tools -> Save Image...[/b] using a model with transparencies, you get the wrong result. All transparent objects are places over the rest objects, even if the are behind, so the resulting image is wrong.
I attached an example of a transparent box with an object inside. The wall of the box a placed wrong.
TagsQt5, transparency


child of 0002986 confirmed Port from Qt4 to Qt5 (Ongoing) 



2018-06-28 22:13


bug.png (47,379 bytes)
bug.png (47,379 bytes)
correct.png (180,453 bytes)
correct.png (180,453 bytes)


2018-07-03 02:09

manager   ~0011480

@maxv the large yellow banner is there for a reason. Please follow the instructions on how FC community prefers how users post bugs.


2018-07-12 12:31

manager   ~0011519

@maxv please add your version info ([b]Help > About FreeCAD > Copy to clipboard[/b]) and upload an example file, even better do this in the forum and link the thread back to this ticket and link from this ticket to the thread.


2018-07-18 22:31

reporter   ~0011536

OS: Linux Mint 17 Qiana
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.Unknown
Build type: Unknown
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.7.0

plexiglass2_chiuso.fcstd (105,699 bytes)


2018-07-27 14:03

manager   ~0011549

@normandc please weigh in on this ticket..thanks


2018-07-29 15:58

manager   ~0011562

maxv's FC info is incomplete with revision number unknown. Obviously he didn't install FreeCAD from one of the two preferred methods for Ubuntu & derivatives.

This has been already discussed in the forum. The report author should have searched the forum first. I won't search for topics myself I have better things to do.


2018-07-30 12:42

reporter   ~0011566

I installed the appimage.
The same bug with version:

OS: Linux Mint 17.2 Rafaela
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13522 (Git) AppImage
Build type: None
Branch: releases/FreeCAD-0-17
Hash: 3bb5ff4e70c0c526f2d9dd69b1004155b2f527f2
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: Italian/Italy (it_IT)


2018-08-23 17:09

manager   ~0011644

@chrisb can you weigh in? Not finding where this subject was discussed in the forums.


2018-10-04 08:04

administrator   ~0011912

I can't reproduce it with:
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.14888 (Git)
Build type: Release
Branch: master
Hash: 93f06f82560820469b63939b35557bea4dffa2e9
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.0.0
Locale: German/Germany (de_DE)

But the problem could be related to the OpenGL driver or Qt4 which is known to cause problems here and there on modern Linux systems. If there is a chance then it would be good to use a build that uses Qt5.


2018-10-05 23:52

manager   ~0011935

@maxv can you try reproducing this issue on the Qt5 appimage for 0.18dev (


2018-10-15 20:13

reporter   ~0012034

Bug still present in 0.18

test.jpg (35,951 bytes)
test.jpg (35,951 bytes)

Issue History

Date Modified Username Field Change
2018-06-28 22:13 maxv New Issue
2018-06-28 22:13 maxv File Added: bug.png
2018-06-28 22:13 maxv File Added: correct.png
2018-07-03 02:09 Kunda1 Status new => feedback
2018-07-03 02:09 Kunda1 Note Added: 0011480
2018-07-03 02:09 Kunda1 Priority high => normal
2018-07-03 02:09 Kunda1 Severity major => minor
2018-07-12 12:31 Kunda1 Note Added: 0011519
2018-07-18 22:31 maxv File Added: plexiglass2_chiuso.fcstd
2018-07-18 22:31 maxv Note Added: 0011536
2018-07-18 22:31 maxv Status feedback => new
2018-07-27 14:03 Kunda1 Note Added: 0011549
2018-07-29 15:58 normandc Note Added: 0011562
2018-07-30 12:42 maxv Note Added: 0011566
2018-08-23 17:09 Kunda1 Note Added: 0011644
2018-10-04 08:04 wmayer Note Added: 0011912
2018-10-05 23:50 Kunda1 Tag Attached: transparency
2018-10-05 23:52 Kunda1 Status new => feedback
2018-10-05 23:52 Kunda1 Note Added: 0011935
2018-10-05 23:54 Kunda1 Tag Attached: Qt5
2018-10-05 23:54 Kunda1 Relationship added child of 0002986
2018-10-15 20:13 maxv File Added: test.jpg
2018-10-15 20:13 maxv Note Added: 0012034
2018-10-15 20:13 maxv Status feedback => new
2018-10-15 20:56 Kunda1 Target Version => 0.18