[IGSTK-Users] Augmented reality

[Alvaro Gómez]

The idea of using the perspective transform seems to be the better way 
but I still don´t see how to use it and I don´t find examples in the 
IGSTK or Sandbox code.

Could you give me the basic idea of how to use the 
igstkPerspectiveTransform or point me an example?

Thanks
Alvaro

El día martes, 23 de junio de 2009 05:38:44 p.m.
Patrick Cheng <cheng at isis.georgetown.edu>
escribió:
> Hi Alvaro,
> 
> 
> 
> Sorry for the late reply. Your email probably fall through our eyes as 
> we were busy preparing for the latest release.
> 
> 
> 
> I think what you are doing is feasible. My question is why do you want 
> to use multiple renderers?
> 
> 
> 
> If you want to overlay object with a 2D video, you can use perspective 
> transform to project the object on to the image 
> (igstkPerspectiveTransform). It will be better to use a single renderer 
> so that you have the same camera and coordinate system.
> 
> 
> 
> Also notice that in the IGSTK coordinate system frame work, we consider 
> View as a node in the scene graph tree. That assumes we only have one 
> renderer in the View (one coordinate system and one camera position). 
> Take these into consideration if you want to modify View to accommodate 
> multiple renderers.
> 
> 
> 
> Patrick
>