Hi,
What would be the best approach to solve the following problem where I need one
node to be updated through a callback to face another node? I understand how to
get a node to face the screen with a billboard but that's not the problem
here...
Here is the problem:
I've got a satellite node that is a child of a PAT and currently, I am updating
that PAT position only to orbit the satellite around a planet node. I want to
update the satellite PAT rotation also so that the satellite Z-Axis always
faces the planet node origin. So, I need to compute the proper rotation Quat …
Code:
Quat GetRotation( const Vec3& tgtPos, const Vec3& subjectPos )
{
Quat ret = what?;
return Quat;
}
Vec3 targetPosition(...);
Vec3 satellitePosition(...);
Quat rotation = GetRotation( satellitePosition, targetPosition );
satellitePAT->setPosition( satellitePosition );
satellitePAT->setRotation( rotation );
What would be the best approach for the calculations in GetRotation(...) using
OSG functions? I can work out the math on my own but I'd like to know if there
are any cool OSG utilities to do this.
Thank you!
Cheers,
Paul
------------------------
things are more like they are now than they have ever been before
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=76770#76770
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