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0015775

VTK

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public

2015-10-13 09:04

2016-08-12 09:55

Reporter

Marc-Alexandre Côté

Assigned To

Kitware Robot

Priority

normal

Severity

minor

Reproducibility

have not tried

Status

closed

Resolution

moved

Platform

OS Version

Product Version

6.0.0

Target Version

Fixed in Version

Summary

0015775: vtkTextActor disappears when there is a vtkLODActor with BackfaceCullingOn

Description

This is the same issue reported in http://www.vtk.org/Bug/view.php?id=12588 [^] but with vtkLODActor.

When there is a vtkLODActor with BackfaceCullingOn drawn just before a vtkTextActor than the vtkTextActor disappears.

This due to GL_CULL_FACE state is leaked (set in vtkProperty::Render) to the next vtkTextActor render state.

See the attached example. When you press 'n' which changes the culling setting of the 2nd sphere, the text disappears. 'b' changes the culling of the first sphere.

I think the problem is that the property's PostRender() method is not called after Render() in vtkLODActor.cxx.
https://github.com/Kitware/VTK/blob/28aebaa3c3a722edd57275c35c4e7dbe1cf8cabc/Rendering/LOD/vtkLODActor.cxx#L208 [^]

Whereas in vtkActor.cxx, it is called.
https://github.com/Kitware/VTK/blob/22e22f62315cd5ea391facfa13074205e6534a1d/Rendering/Core/vtkActor.cxx#L183 [^]

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No tags attached.

Project

TBD

Type

incorrect functionality

Main.cpp [^] (4,087 bytes) 2015-10-13 09:04

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Notes
(0037423) Kitware Robot (administrator) 2016-08-12 09:55	Resolving issue as `moved`. This issue tracker is no longer used. Further discussion of this issue may take place in the current VTK Issues page linked in the banner at the top of this page.