[Chimera-users] mrc opaque faces

[Benoit Zuber]

Hi Elaine and Tom,

Thank you for your reply. Unchecking the option indeed solved my
problem.

Kind regards,
Ben
On Tue, 2008-08-26 at 09:18 -0700, Tom Goddard wrote:
> Hi Ben,
> 
>   The opaque volume faces are a feature to improve the appearance when 
> objects in the density appear at the edge of the volume box.  For 
> inverted maps, ones where objects are low volume values and noise 
> regions have high volume values you want to turn off the "cap high 
> values at box faces" option as described in a previous post:
>  
>   http://www.cgl.ucsf.edu/pipermail/chimera-users/2008-March/002455.html
> 
>     Tom
> 
> Benoit Zuber wrote:
> > Hello,
> >
> > I have problem looking at maps in mrc format calculated with IMOD. In
> > mesh or surface style, when I move "level" towards lower value, the
> > outer faces of the volume gradually become opaque. When I set the level
> > to the minimum I see a smooth rectangular parallelepiped. I can then
> > zoom in and have the camera inside the parallelepiped. With these
> > settings, no density is visible inside the parallelepiped, only its
> > faces are visible. 
> > In 3dmod I checked the edges of the map: they have a variable density,
> > and they are not all black, or all white.
> >
> > Has anybody got a clue of what's going wrong?
> >
> > Thanks
> > Ben
> >
> >   
> 
>