Rotating object, globally

[Helper]

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 23/06/2004 at 04:31, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   8.206 
Platform:      
Language(s) :     C++  ;

---------
Hi,
 
I am trying to force a bones direction to point in the X axis in world space.
 
To do this I use this simple code

    
    
    
    
       Vector vDir = Vector(Rad(270.0),0,0);
    
    
    
    
       oBone->SetRot(VectorToHPB(vDir));
    
    
    

Running that code on a bone, faces the bone along the X axis.
 
But when the bone is a child of another bone, it will no longer point along the X axis because SetRot() is working locally.
 
For the life of me I can work out how to make that bone point in the X axis  in world space no matter what the bone is a child of.
 
help!

[Helper]

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 24/06/2004 at 04:37, xxxxxxxx wrote:

You need to do the rotation in world space, using matrices. Please see the tutorial at [URL-REMOVED][URL-REMOVED] for an introduction. (Most of the C.O.F.F.E.E. functions have similarly named C++ counterparts.)

---

[URL-REMOVED] @maxon: This section contained a non-resolving link which has been removed.

[Helper]

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 25/06/2004 at 02:51, xxxxxxxx wrote:

Thanks Mikael, Got it sorted
 
I infact did already read that link, but it was due to a good programmer error (i.e me) that I was having troubles.
 
I was setting the global rotation of a bone, THEN adding it as a child of another bone.
 
I had to add the bone first, then do the rotation.
 
Logical when I think about it
 
Thanks again