Based on those errors I would expect you not to see a point cloud at all.
 If you're seeing a point cloud, have you tried setting the color
transformer to RGB?

If that doesn't work, can you attach the Ogre.log file you get when running
"rviz -l"?

Josh

On Sat, Feb 12, 2011 at 10:48 AM, liuwei@cmu.edu <liuwei@cmu.edu> wrote:

> Hi,
>
> I installed ROS on my ubuntu 10.10 system,
> my computer is dell optiplex gx620.
> I am using the openni_kinect, when I run rviz,
> it shows,
>
> [ERROR] [1297371552.336600216]: No techniques available for material
> [PointCloudMaterial0BillboardSphere]
> [ERROR] [1297371552.337862615]: No techniques available for material
> [PointCloudMaterial0Billboard]
> [ERROR] [1297371552.353709307]: No techniques available for material
> [PointCloudMaterial0Point]
>
> I can see black and white point cloud in rviz, without color.  How can I
> get the color shown in rviz?
>
> --
> Wei Liu
> Research Scholar
> Robotics Institute NSH1202
>  Carnegie Mellon University
>
>
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