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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED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++ ;

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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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED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 http://www.maxoncomputer.com/tutorial_detail.asp?site=CAFE-DEV&tutorialID=136 for an introduction. (Most of the C.O.F.F.E.E. functions have similarly named C++ counterparts.)

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED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