[osg-users] Get Animation current time

[Robert Osfield]

Hi Diego,

On Fri, 28 Dec 2018 at 14:31, Diego Mancilla <dmancillac at gmail.com> wrote:
> So:
> 1 - Can I, from the osg::FrameStamp instance "reconstruct" the current animation time from the AnimationPath instances or from anywhere else?

The FrameStamp is set up in the Viewer::advance(..) method, you can
pass a simulation time as a double into this method() or the slightly
higher level Viewer::frame(..) method that will call advance() and the
frame traversals for you.

You can subclass from Viewer and override advance() is you so wished.

> 2- Besides the "while (!viewer.done())..." loop, is there a way to control the time sampling of the animation? i.e. the times at which the AnimationPath::getInterpolatedControlPoint method is called (from
the AnimationPathCallback::update method)?

The above suggestions is the standard way of doing it.  If this
doesn't suit then writing your own AnimationPathCallback might the
thing you want.

Robert.