<div dir="ltr">HI Sandro,<br><div class="gmail_extra"><br><div class="gmail_quote">On 21 August 2017 at 18:16, Sandro Mani <span dir="ltr"><<a href="mailto:manisandro@gmail.com" target="_blank">manisandro@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">Sure. However I'm curious, how is the logic supposed to work under
Windows, where support for specifying the GL version was already
implemented? Wouldn't you hit the same issues on that platform also?</div></blockquote><div><br></div><div>So far it's be a niche feature used by small number of developers on their specific applications/platform combinations. Functionality in the OSG community gets developed on a need basis, so if the functionality isn't there yet then it's because few people have required it. There are so many things one can do in real-time graphics one has to spend ones time on the most important issues one hits upon with your own applications.<br></div><div><br><br> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF"><span class=""><br>
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<div>I see it as a constraint on osgEarth working with Intel
drivers and recent GL versions and associate drivers.
What we are talking about is working around these
constraints in the driver to provide to full osgEarth
functionality across a wider range of hardware. The first
step has been to add the GL version functionality to OSG's
GLX support. <br>
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<div>Whether we need to push any changes to osgEarth is
something I'm not clear on, if the above export's now work
with OSG master and osgEarth then I think we are most of
the way to getting what is reasonable to expect.<br>
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Not that I want to be annoying or repetitive, but surely it's not
ideal that osgEarth::Capabilities::<wbr>Capabilities performs it's checks
with a 1.0 context, even though you specify
OSG_GL_CONTEXT_VERSION=4.0? Or am I missing something here?<br></div></blockquote><div><br></div><div>Having the the OSG to worry about is enough for my little brain, I can't comment on the specifics of 3rd party software that builds upon it. osgEarth has evolved alot over the years, the Capabilities functionality is something I'm not familiar with at all. All I can say in general is that one would typically check for functionality supported by the driver once a graphics context has been created, if one did create a dummy context just testing functionality then you'd want to make sure it's created with the same settings as you create the final viewer windows. <br><br>If osgEarth doesn't do this then it's something to take up with the osgEarth team,<br><br></div><div>Robert.<br></div><div><br><br></div></div><br></div></div>