<div dir="ltr"><br>Here is the solution:<br><br>text->setFontResolution(18,18);<div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2017-04-25 17:13 GMT+05:00 Volckaert, Guy (CA - MTS) <span dir="ltr"><<a href="mailto:Guy.Volckaert@meggitt.com" target="_blank">Guy.Volckaert@meggitt.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I'm using OSG v3.4.0 and I resolved this issue by adding a glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,...) before calling glTexSubImage2D() in glyph.cpp. This problem was occurring if I was using an Intel video driver.<br>
<br>
void Glyph::subload() const<br>
{<br>
[...]<br>
<br>
// MTSI_BEGIN<br>
// This line was added to resolve a problem with intel chipsets. In essence, some of the<br>
// numeric glyphs would not display correctly. They would appear grey or transparent.<br>
if( getTexture() )<br>
{<br>
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, getTexture()->getFilter( osg::Texture::MIN_FILTER ) );<br>
}<br>
// MTSI_END<br>
<br>
glTexSubImage2D(GL_TEXTURE_2D,<wbr>0,<br>
_texturePosX,_texturePosY,<br>
s(),t(),<br>
(GLenum)getPixelFormat(),<br>
(GLenum)getDataType(),<br>
data());<br>
[...]<br>
}<br>
<br>
void GlyphTexture::apply(osg::<wbr>State& state) const<br>
{<br>
[...]<br>
// MTSI_BEGIN<br>
// This line was added to resolve a problem with intel chipsets. In essence, some of the<br>
// numeric glyphs would not display correctly. They would appear grey or transparent.<br>
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, _min_filter);<br>
// MTSI_END<br>
// Subload the image once<br>
glTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0,<br>
getTextureWidth(),<br>
getTextureHeight(),<br>
OSGTEXT_GLYPH_FORMAT, GL_UNSIGNED_BYTE, local_data);<br>
[...]<br>
}<br>
<br>
Regards,<br>
<div><div class="h5"><br>
-----Original Message-----<br>
From: osg-users [mailto:<a href="mailto:osg-users-bounces@lists.openscenegraph.org">osg-users-bounces@<wbr>lists.openscenegraph.org</a>] On Behalf Of Tim Hartter<br>
Sent: April-25-17 7:29 AM<br>
To: OpenSceneGraph Users<br>
Subject: Re: [osg-users] Vanishing letters in osg::Text<br>
<br>
Setting OSG_TEXT_INCREMENTAL_<wbr>SUBLOADING to off does not make a difference and YES it happens on Intel cards (not on Nvidia) (Win 7 OSG 3.4)<br>
<br>
Maybe the patched OSG text works better...<br>
<br>
Mit AquaMail Android<br>
<a href="http://www.aqua-mail.com" rel="noreferrer" target="_blank">http://www.aqua-mail.com</a> gesendet<br>
<br>
<br>
Am 25. April 2017 10:18:21 vorm. schrieb Robert Osfield<br>
<<a href="mailto:robert.osfield@gmail.com">robert.osfield@gmail.com</a>>:<br>
<br>
> On 25 April 2017 at 06:34, Wouter Roos <<a href="mailto:rooswouter@gmail.com">rooswouter@gmail.com</a>> wrote:<br>
>> I've experienced a similar issue lately where we were running a<br>
>> project on lower spec systems with only an integrated GPU. On those<br>
>> systems the frame rate would not show properly, having the same issue<br>
>> as described here, with some numbers not showing properly.<br>
>> I did a test on my laptop, and when I force it to use the integrated<br>
>> GPU<br>
>> (4600) the problems shows up as well. If I switch to use the GTX970M<br>
>> everything is fine again. This is all on Windows 10, osg 3.4.0 I<br>
>> haven't done any further investigation as the project is not using<br>
>> any Text objects, but maybe this might help somehow.<br>
><br>
> Some hardware/drivers don't support texture sub-loading correctly so<br>
> the osgText subloading of new glyphs could cause problems, perhaps<br>
> this is what you are seeing. It's problem that originally occurred on<br>
> Radeon's and some SGI hardware so there is a workaround in osgText<br>
> that detects these combinations in drivers, you can also enable the<br>
> workaround by setting the env var OSG_TEXT_INCREMENTAL_<wbr>SUBLOADING to<br>
> OFF i.e. under bash you'd do:<br>
><br>
> export OSG_TEXT_INCREMENTAL_<wbr>SUBLOADING=OFF<br>
> osgtext<br>
><br>
> Under windows I think it's something like:<br>
><br>
> set OSG_TEXT_INCREMENTAL_<wbr>SUBLOADING=OFF<br>
> osgtext<br>
><br>
> The OSG master version has a had a major rewrite of osgText so it no<br>
> longer uses the texture subloading as may well just work out of the<br>
> box on the Intel GPU/drivers that you have.<br>
><br>
> Robert.<br>
> ______________________________<wbr>_________________<br>
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> org<br>
<br>
<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>--------------------------------</div><div>Maxim Gammer<br></div><div>+79199510073</div></div></div>
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