[osg-users] Vanishing letters in osg::Text

[Robert Osfield]

Hi TIm,

It's to know what might be wrong from the description, my best guess
is that it might be some depth buffer resolution issue. Could it be
the filled bounding box that is t fault? Try not enabling this and see
what happens.

Robert.

On 22 April 2017 at 11:18, Tim Hartter <Tim.Hartter at gmx.de> wrote:
> Hello everyone, I have a problem with osg::Text()
> Some letters seem to vanish with depth (see picture) - the "h" in "This is a
> label.." is vanishing if the text is further away from the camera.
>
> Do you have any idea what I'm doing wrong?
>
> This is how I draw the text node: (the font does not matter by the way...)
>
> 		osg::ref_ptr<osg::StateSet> pStateset(new osg::StateSet());
>
> 		pStateset->setMode(GL_LIGHTING,
> 			osg::StateAttribute::OFF |
> 			osg::StateAttribute::PROTECTED |
> 			osg::StateAttribute::OVERRIDE);
>
> 		pStateset->setMode(GL_BLEND, osg::StateAttribute::ON);
> 		pStateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
> 		pStateset->setRenderBinDetails(INT_MAX, "RenderBin",
> osg::StateSet::OVERRIDE_RENDERBIN_DETAILS);
>
> 		osg::ref_ptr<osgText::Text> pText( new osgText::Text );
> 		osg::ref_ptr<osg::Geode> pTextGeode ( new osg::Geode );
> 		pText->setFont(pFont);	
> 		pText->setText(Text.c_str());
> 		pText->setAutoRotateToScreen(true);
> 		pText->setDrawMode(osgText::Text::TEXT |
> osgText::Text::FILLEDBOUNDINGBOX);
> 		pText->setBoundingBoxMargin(FontSize * 0.1);
> 		pText->setFontResolution(96, 96);
> 		pText->setCharacterSize(FontSize);
> 		pText->setPosition(Position);
> 		pText->setColor(osg::Vec4d(1,0,0,1));
> 		pText->setStateSet(pStateset.get());
> 		pText->setUseDisplayList(false);
>
> 		pTextGeode->addDrawable(pText);
> 		pTextGeode->setStateSet(pStateset);
> 		return pTextGeode;
>
>
> I'd be greatful for any help on the matter.
> -Tim-
>
>
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