[osg-users] Calling setUseVertexAttributeAliasing(true) after a viewer is being "run" causes a crasch

[Anders Backman]

Hi all.
Just noticed that it is not possible to toggle the
setUseVertexAttributeAliasing after a viewer has been realized and
frame/run has been called and any text is involved in the scene. The
attached code is a modified osgViewer. If 's' (statistics) is shown after
the call to setUseVertexAttributeAliasing, I get a callstack, meaning it
is not possible to toggle this feature while an application is being run.
Is that intentional?

I am running OSG 3.6.4 on Windows 10
osg160-osg.dll!osg::VertexArrayState::applyDisablingOfVertexAttributes(osg::State
& state) Line 294 C++

osg160-osg.dll!osg::Geometry::drawVertexArraysImplementation(osg::RenderInfo
& renderInfo) Line 989 C++
osg160-osg.dll!osg::Geometry::drawImplementation(osg::RenderInfo &
renderInfo) Line 899 C++
osg160-osg.dll!osg::Drawable::drawInner(osg::RenderInfo & renderInfo)
Line 277 C++
osg160-osg.dll!osg::Drawable::draw(osg::RenderInfo & renderInfo) Line 619
C++
osg160-osgUtil.dll!osgUtil::RenderLeaf::render(osg::RenderInfo &
renderInfo, osgUtil::RenderLeaf * previous) Line 84 C++
osg160-osgUtil.dll!osgUtil::RenderBin::drawImplementation(osg::RenderInfo
& renderInfo, osgUtil::RenderLeaf * & previous) Line 488 C++

osg160-osgUtil.dll!osgUtil::RenderStage::drawImplementation(osg::RenderInfo
& renderInfo, osgUtil::RenderLeaf * & previous) Line 1408 C++
osg160-osgUtil.dll!osgUtil::RenderBin::draw(osg::RenderInfo & renderInfo,
osgUtil::RenderLeaf * & previous) Line 432 C++
osg160-osgUtil.dll!osgUtil::RenderStage::drawInner(osg::RenderInfo &
renderInfo, osgUtil::RenderLeaf * & previous, bool & doCopyTexture) Line
934 C++

[Robert Osfield]

Hi Andres,

You've posted to the mailman list, which I'm about to close, could you
subscribe/post to the osg-users googlegroup. I'll answer the question
there.

Cheers,
Robert.

Post by Anders Backman
Hi all.
Just noticed that it is not possible to toggle the
setUseVertexAttributeAliasing after a viewer has been realized and
frame/run has been called and any text is involved in the scene. The
attached code is a modified osgViewer. If 's' (statistics) is shown after
the call to setUseVertexAttributeAliasing, I get a callstack, meaning it
is not possible to toggle this feature while an application is being run.
Is that intentional?
I am running OSG 3.6.4 on Windows 10
osg160-osg.dll!osg::VertexArrayState::applyDisablingOfVertexAttributes(osg::State
& state) Line 294 C++
osg160-osg.dll!osg::Geometry::drawVertexArraysImplementation(osg::RenderInfo
& renderInfo) Line 989 C++
osg160-osg.dll!osg::Geometry::drawImplementation(osg::RenderInfo &
renderInfo) Line 899 C++
osg160-osg.dll!osg::Drawable::drawInner(osg::RenderInfo & renderInfo)
Line 277 C++
osg160-osg.dll!osg::Drawable::draw(osg::RenderInfo & renderInfo) Line
619 C++
osg160-osgUtil.dll!osgUtil::RenderLeaf::render(osg::RenderInfo &
renderInfo, osgUtil::RenderLeaf * previous) Line 84 C++
osg160-osgUtil.dll!osgUtil::RenderBin::drawImplementation(osg::RenderInfo &
renderInfo, osgUtil::RenderLeaf * & previous) Line 488 C++
osg160-osgUtil.dll!osgUtil::RenderStage::drawImplementation(osg::RenderInfo
& renderInfo, osgUtil::RenderLeaf * & previous) Line 1408 C++
osg160-osgUtil.dll!osgUtil::RenderBin::draw(osg::RenderInfo &
renderInfo, osgUtil::RenderLeaf * & previous) Line 432 C++
osg160-osgUtil.dll!osgUtil::RenderStage::drawInner(osg::RenderInfo &
renderInfo, osgUtil::RenderLeaf * & previous, bool & doCopyTexture) Line
934 C++
--
__________________________________________
Anders Backman, HPC2N
90187 Umeå University, Sweden
Cell: [phone]
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