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IDProjectCategoryView StatusLast Update
0026494CommunityOCCT:Visualizationpublic2015-09-07 11:51
Reportertrololo Assigned Tobugmaster  
Status closedResolutionno change required 
PlatformWindowsOSVC++ 2010 
Product Version6.7.1 
Fixed in Version7.0.0 
Summary0026494: Visual3d_Layer DrawText leads to access violation in nvoglv32.dll
DescriptionUsing DrawText inside V3d_View->OverLayer leads to crash at nvoglv32.dll.
Might take several redraws till it happens.
See OCCGraficCallback() from modified OCCT Proxy sample.
Steps To ReproduceAdd graphic callback to WNT_Window.
Inside the callback call to Visual3d_Layer -> DrawText.
Redraw V3d_View.
TagsNo tags attached.
Test case number

Attached Files

  • OCCTProxy.cpp (28,270 bytes)


related to 0025789 closedbugmaster Open CASCADE Visualization - get rid of obsolete 2d layers implementation 



2015-07-29 09:33


OCCTProxy.cpp (28,270 bytes)


2015-07-29 18:34

developer   ~0043685

Dear trololo,

the specified functionality (Visual3d_Layer and Aspect_GraphicCallbackProc) is deprecated and will be removed in next release. Within current information it looks more like a bug in NVIDIA driver rather than in OCCT.

Please provide test scenario using actual API (AIS_TextLabel and Graphic3d_ZLayerId_TopOSD using Z-layers - but better by Draw Harness script) and actual version of OCCT (6.9.0) if the problem is still reproducible.


2015-09-04 13:09

developer   ~0045054

Last edited: 2015-09-04 13:12

Dear bugmaster,

please close the issue as related functionality has been removed within 0025789.

Issue History

Date Modified Username Field Change
2015-07-29 09:33 trololo New Issue
2015-07-29 09:33 trololo Assigned To => kgv
2015-07-29 09:33 trololo File Added: OCCTProxy.cpp
2015-07-29 18:26 kgv Relationship added related to 0025789
2015-07-29 18:34 kgv Note Added: 0043685
2015-07-29 18:34 kgv Assigned To kgv => trololo
2015-07-29 18:34 kgv Status new => feedback
2015-07-29 18:34 kgv Resolution open => no change required
2015-09-04 13:09 kgv Note Added: 0045054
2015-09-04 13:09 kgv Assigned To trololo => bugmaster
2015-09-04 13:09 kgv Fixed in Version => 7.0.0
2015-09-04 13:12 kgv Note Edited: 0045054
2015-09-07 11:51 bugmaster Status feedback => closed