[gate-users] how to get a transparent voxelized phantom?

Richard Taschereau RTaschereau at mednet.ucla.edu
Tue Aug 23 19:40:41 CEST 2005

Hi Yuxuan,

In order to view transparency, you need a viewer that supports it, like the
G4RayTracer (for more info see  ...
geant4/source/visualization/RayTracer/README).  The alpha parameter controls
the transparency level: 0-transparent, 1-opaque.


On 8/23/05 10:26 AM, "yuxuan.zhang at di.mdacc.tmc.edu"
<yuxuan.zhang at di.mdacc.tmc.edu> wrote:

> Hi, 
> In the manual for Gate v2.1-2.2, the figure 7.1 shows the
> ability of displaying a transparent phantom. But in the
> context there are no detailed descriptions about how to do
> it. Is there anyone know something about that?
> Also, in the chapter 7.3.2, there's a parameter about the
> color attribute -- alpha. What does this parameter controls?
> I've changed the value between 0 and 1, seems there are
> no differences. Does it related to some other setup of the
> graphics display software or driver, like OPEN GL, or Geant4?
> I am using MesaGL-6.2 now.
> Yuxuan 

Richard Taschereau, Ph.D.
CRUMP Institute for Molecular Imaging
University of California Los Angeles
700 Westwood Plaza A438
Los Angeles, CA 90095-1770
Phone: (310) 794-1839
Fax:     (310) 206-8975
email: RTaschereau at mednet.ucla.edu

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