Re: [Plib-users] accessing the camera-/modelview-matrix

[Volker P. <pop...@in...>]

On Sunday 06 January 2002 03:06, you wrote:
> Volker Poplawski wrote:
> > I'm playing around with plib/ssg in combination with Qt. I wonder why
> > there is no method to directly set the cameraMatrix in ssgContext.
>
> What's wrong with:
>
>    ssgContext::setCamera ( sgMat4 mat )
>
> ...or...
>
>    ssgSetCamera ( sgMat4 mat ) ;

well, these methods don't set the model-view-matrix directly, the transpose 
and negate the given matrix and exchange the y- and z-axis before applying to 
the cameraMatrix.
Right now i'm using ssgSetCamera( myMatrix ) but i'have to do the 
transposeAndNegate and exc. y-z on myMatrix first to have the operations 
later reverted by ssgSetCamera(), somewhat sub-optimal...

>
> (which operates on the current context for backwards compatibility)
>
> > Is this a missing feature or is there a smarter way to do it?
>
> I think maybe it's not documented.
>
> ----------------------------- Steve Baker -------------------------------
> Mail : <sjb...@ai...>   WorkMail: <sj...@li...>
> URLs : http://www.sjbaker.org
>        http://plib.sf.net http://tuxaqfh.sf.net http://tuxkart.sf.net
>        http://prettypoly.sf.net http://freeglut.sf.net
>        http://toobular.sf.net   http://lodestone.sf.net