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0025845Open CASCADE[OCCT] OCCT:VISpublic2015-02-19 13:292019-07-11 15:30
ssv 
aba 
normalminor 
assignedopen 
 
[OCCT] Unscheduled 
0025845: VIS - Surface normals to be associated with polygonal source
Currently in IVtk it is not possible to use original geometric normals in triangulation nodes. These normals are required in order to enhance visualization smoothness. Currently IVtk client code is forced to use vtkPolyDataNormals filter in couple with Phong/Gouraud shading mode, but this does not help much (see screenshot attached).

Once fixed, the official user's guide on IVtk has to be reviewed (I think, currently it contains some notes on necessity to use vtkPolyDataNormals).
No tags attached.
png shading_02.png (29,940) 2015-02-19 13:29
https://tracker.dev.opencascade.org/
? l_face.brep (126,760) 2015-02-19 13:29
https://tracker.dev.opencascade.org/
Issue History
2015-02-19 13:29ssvNew Issue
2015-02-19 13:29ssvAssigned To => san
2015-02-19 13:29ssvFile Added: shading_02.png
2015-02-19 13:29ssvFile Added: l_face.brep
2015-03-09 18:34abaAssigned Tosan => aba
2015-03-15 21:42gitNote Added: 0038375
2015-03-16 15:55gitNote Added: 0038398
2015-04-21 06:05abvNote Added: 0040069
2015-04-21 08:00abaStatusnew => assigned
2015-04-21 08:00abaTarget Version6.9.0 => 7.1.0
2016-11-01 06:41abvTarget Version7.1.0 => 7.2.0
2017-07-27 09:43abvTarget Version7.2.0 => 7.4.0
2019-05-19 16:16kgvSummarySurface normals to be associated with polygonal source => VIS - Surface normals to be associated with polygonal source
2019-07-11 15:30ssvNote Added: 0085602
2019-07-11 15:30ssvTarget Version7.4.0 => Unscheduled

Notes
(0038375)
git   
2015-03-15 21:42   
Branch CR25845 has been created by aba.

SHA-1: 3ee95aaf00209af3b870acdcdd3f8eea005717ae


Detailed log of new commits:

Author: aba
Date: Sun Mar 15 21:41:50 2015 +0300

    0025845: Surface normals to be associated with polygonal source:
    - IVtkDraw: added ivtkproperty command
    - IVtkDraw: added vtkPolyDataNormals filter for cells as default
(0038398)
git   
2015-03-16 15:55   
Branch CR25845 has been updated by aba.

SHA-1: be6a1626cf4bf7c1012c69d5680f2d4d5d88d557


Detailed log of new commits:

Author: aba
Date: Mon Mar 16 15:54:54 2015 +0300

    get normals from OCC polydata

(0040069)
abv   
2015-04-21 06:05   
What is the status of this issue? is it going to be fixed in OCCT 6.9.0?
(0085602)
ssv   
2019-07-11 15:30   
Put the "unscheduled" version as there is no demand currently in fixing the reported issue. Applying vtkPolyDataNormals filter gives a sufficiently smooth presentation of curved geometry.