Mon, 03/21/2011 - 13:09
Forums:
Hello,
an attempt to print the contents of an Open Cascade window leads to a crash in file OpenGl_PrimitiveArray.cxx in line 646 ( glDrawArrays( draw_mode, n, p->bounds[i]); ).
I work on Win XP SP3 + NVIDIA Quadro 1700 + VS 2008 (with a recompiled OCCT).
Can anyone confirm?
Pawel
Mon, 03/21/2011 - 14:50
Hi Pawel,
Can you provide a short sample to reproduce the crash?
Regards
Mon, 03/21/2011 - 17:24
Hi Sergey,
thank you for your feedback.
Attached you will find a modified example from the post "Many views in OCC6.5.0".
The sample opens the "Print Dialog" after creating the first view. After selecting the printer and pressing "OK" it crashes.
It also crashes using the precompiled OCCT libraries.
Pawel
Mon, 03/21/2011 - 18:54
Hi Pawel,
I tried your sample and I have the same error, in the same line.
In my sample, you need to press any key on the console to crash. Maybe you did not?
Mon, 03/21/2011 - 19:24
Hello int,
yes, I pressed a key but there was no problem.
Pawel
Mon, 03/21/2011 - 19:04
Hi Pawel,
The sample was tested on Win XP SP3 + GeForce 8600 GT + VS 2008.
I confirm the crash after applying "OK".
Thanks for your contribution.
The corresponding issue with ID = OCC22337 has been registered.
Later you can know if the issue is resolved by checking references to the specified ID in OCCT Release Notes.
Regards
Mon, 03/21/2011 - 19:21
Thank you!
Mon, 03/28/2011 - 16:39
Hi,
As a sort of workaround (until the bug will not be fixed) we recommend to turn vertex buffer object (VBO) usage off with help of Graphic3d_GraphicDriver::EnableVBO( Standard_False ) call.
This should be done on 3D view initialization, or all presentations that use primitive arrays should be recomputed after disabling VBOs.
Regards
Mon, 03/21/2011 - 16:33
Hi Pawel,
It seems I have a similar problem. Could you test my latest sample from the topic "Many views in OCC6.5.0" (http://www.opencascade.org/org/forum/thread_20185/)?