[osg-users] [propal] compare VertexArrayState with current int state::setCurrentVAS

[Robert Osfield]

Hi Julien,

Minimizing the CPU cost of administration of vertex array objects and
vertex buffer objects is core consideration to the design and
implementation of the VertexArrayState.  Any extra cost over what
there exist already is not acceptable.

Cheers,
Robert.

On Mon, 31 Dec 2018 at 16:11, Julien Valentin
<julienvalentin51 at gmail.com> wrote:
>
> Hi,
>
> What do you think of this kind of change:
> -adding a VertexArrayState comparator ( compare vbos and ebo and their dispatch index)
> -in State::SetCurrentVertexArrayState(vas):
> if(current->compare(vas))return;
> current=vas;
>
> It would add a little overcost but would be quite usefull in case Drawable can share their vas...
> With the current design (createvascallback) it's possible but kind of tricky..:/
>
> Thank you!
>
> Cheers,
> Julien
>
> ------------------------
> Twirling twirling twirling toward freedom
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=75369#75369
>
>
>
>
>
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