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IDProjectCategoryView StatusLast Update
0003371FreeCADBugpublic2018-09-25 11:48
Reportersilviulaurentiu Assigned To 
PrioritynormalSeverityminorReproducibilityalways
Status closedResolutionwon't fix 
PlatformWindowsOSWindowsOS Version7, 64bit
Product Version0.17 
Summary0003371: Object is not correct displayed when it is zoomed out and then rotated
Description  When an object is rotated, after it was high zoomed out, there are situation when it is not correct disabled. I attached a movie with this behavior.
Steps To Reproduce1. Create new empty document
2. Create a cube solid (or any other object)
3. Zoomed out it few times
4. Rotate until it will not be displayed partially or totally.
Additional InformationFreecad: 0.17; 13362
TagsNo tags attached.
FreeCAD Information

Activities

silviulaurentiu

2018-03-12 18:30

reporter  

Kunda1

2018-06-10 22:19

administrator   ~0011400

Can't reproduce on
OS: "Manjaro Linux"
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.13934 (Git) AppImage
Build type: None
Branch: master
Hash: b77b77c0def23f2abb9b0c96ed9c50076906be6a
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/UnitedStates (en_US)

@silviulaurentiu do you mind trying with the latest bleeding edge 0.18dev from https://github.com/FreeCAD/FreeCAD/releases/tag/0.18_pre and report back ?

normandc

2018-06-11 19:26

manager   ~0011404

I can reproduce. It's a known issue. Not sure if there's already a bug report about it.

Maybe it's graphics driver related?

P.S. You should not have set severity of this bug to major. It is not. Zoom "fit all" will fix the 3D view.

wmayer

2018-09-25 11:48

administrator   ~0011834

The problem is when zooming out so much then at some point you get relatively high rounding errors (OpenInventor/Coin3d calculates with single-precision floating-point numbers).

The effect of this is that the far and near clipping plane positions then go through the model which explains the demonstrated behaviour.

As pointed out you can easily fix this by yourself by calling the view fit function.

Issue History

Date Modified Username Field Change
2018-03-12 18:30 silviulaurentiu New Issue
2018-03-12 18:30 silviulaurentiu File Added: 2018-03-12_19-56-07.mp4
2018-03-12 18:30 silviulaurentiu File Added: 2018-03-12_16-17-08.mp4
2018-06-10 22:19 Kunda1 Status new => feedback
2018-06-10 22:19 Kunda1 Note Added: 0011400
2018-06-11 19:26 normandc Note Added: 0011404
2018-06-11 19:41 Kunda1 Severity major => minor
2018-06-11 19:42 Kunda1 Status feedback => confirmed
2018-09-25 11:48 wmayer Status confirmed => closed
2018-09-25 11:48 wmayer Resolution open => won't fix
2018-09-25 11:48 wmayer Note Added: 0011834