Re: [ggt-devel] Quaternion bug?

[Kevin M. <ke...@vr...>]

in that case mult() should be rewritten (right?)
because *= uses it correctly, but it is giving the wrong result.

are you sure it wasn't a problem converting quat->euler?

On Thu, 13 Mar 2003, Justin Hare wrote:

> 
> > the real question is whether the matrix one should be changed to match
> > this one.  I always thought that q1 = q1 * q2 should be the same as q1 *=
> > q2, and I think it is that way now isn't it?
> 
> Actually,
> 
> q1 *= q2;
> 
> currently produces the same effect as
> 
> q1 = q2 * q1;
> 
> But the documentation in the header file says it should be
> 
> q1 = q1 * q2;
> 
> I'm going to change the implementation to match the documentation if
> no one has any objections.
> 
> justin
> 
> -----------------------------------------
> Justin Hare  <ja...@vr...>
> Virtual Reality Applications Center
> Iowa State University, Howe Hall
> http://www.vrac.iastate.edu/~jahare
> -----------------------------------------
> 

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