Very impressive Robert!  As you said, comparing osgEarth to your example
isn't exactly apples to apples since the implementation under the hood is
quite different but this is still great.

>From what I've seen from your performance reporting, vsg is significantly
faster than osg in most of your tests.  Do you have a feel for how much of
that is just Vulkan being faster than OpenGL vs some of the other
improvements you've made in design decisions of VSG vs OSG?  Are there any
opportunities for porting some of the structures or concepts from VSG back
to OSG to get some of the performance benefits you've seen in VSG in OSG?


On Tue, Mar 23, 2021 at 4:05 PM Robert Osfield <>

> Hi Nathan,
> On Tue, 23 Mar 2021 at 18:26, Nathan Mielcarek <>
> wrote:
>> Great news! I look forward to using this in the near future either
>> through OSG directly or osgEarth.
> The VSG is intended as the successor to the OSG and would typically be
> used instead of the OSG. The VSG is significantly faster than the OSG but
> is still in development so isn't feature complete and is still a moving
> target.  For now it's something folks who are happy to work on the bleeding
> edge in order to get best performance.
> One could integrate OSG/VSG into a single application using OpenGL/Vulkan
> extensions to exchange data between them. Thomas Hogarth didn;'t some work
> on this earlier in the VSG project, this work needs updating and porting to
> work across all platforms.
>> Was a bit amused by your comment about the accuracy on "finding your
>> house". I think it's a great feature, especially considering how that data
>> can be used by autonomous vehicles eventually.
> It's impressive how so much verifiably accurate data is publically
> available, also a bit unnerving.
> Cheers,
> Robert,
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