Hi,
We used to see this problem a lot. The OSG_TEXT_INCREMENTAL_SUBLOADING advice
did not help. What did help was explicitly setting the GL_TEXTURE_MIN_FILTER
at a slightly different place in osgText/Glyph.cpp.
Around line 373 you'll see a call to glPixelStorei() before the
glTexSubImage2D() near the bottom of GlyphTexture::apply(). I add the
following:
Code:
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
getFilter(osg::Texture::MIN_FILTER));
Then around line 517 you'll see another call to glPixelStorei() before
glTexSubImage2D() in Glyph::subload(). I add:
Code:
if (_texture)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
_texture->getFilter(osg::Texture::MIN_FILTER));
else
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
GL_LINEAR_MIPMAP_LINEAR);
This worked on the Intel cards. I expect it's some sort of driver bug, but I'm
not sure.
I hope this helps.
- Dan
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=70829#70829
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