This may be caused by the front clipping plane of the viewing frustrum. If your object 
or parts of your object are in front of this plane it gets completely or partially 
clipped. There is a default setting how far the front clipping plane is from the 
"camera"
but you can change this value.

regards
Paul

Daniel Moscoso schrieb:

> Hi all !!
>
> I' m implementing an applet that is able to zoom an object (ex. pushing a 
>pushbutton) moving the ViewPlatform towards it. This makes the object appear nearer 
>the observer. I do this changing the transform vector of the ViewPlatform (the 
>default one for th
> The problem I have is that for a Z of the vector less than 1.0, the object 
>dissapears.
>
> Does anyone know why ? Is the bounds or the geometry of the object what causes it ?
> Or is there a better way to zoom an object ?
>
> Thanks in advanced !!
>
> Dani
>
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