[osg-users] ViewerBase::frame() method slow after changing the color of a geometry

[Lionel Lagarde]

If you use display lists, you have to tell OSG that it has to re-build it.

If you use vertex arrays, colors->dirty() should be enough.



On 21/07/2017 12:32, Gianni Ambrosio wrote:
> Thanks Lionel and Robert for the quick reply.
>
> I tried what Lionel suggested but in fact the geometry generation is much more slow now.
> Anyway, since I suspected that "dirtyDisplayList()" is the cause of the delay, I tried to remove that line but without it I cannot see the new color.
> Now, is "dirtyDisplayList()" really required for what I need or is there a different call should I use just to see the triangle with the updated color?
>
> Thanks,
> Gianni
>
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> http://forum.openscenegraph.org/viewtopic.php?p=71298#71298
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