Sounds like your X server is not setup properly for 3D acceleration.  What does &quot;glxinfo&quot; output?<br><br>Josh<br><br><div class="gmail_quote">On Sun, Mar 7, 2010 at 1:37 AM, Suraj Swami <span dir="ltr">&lt;<a href="mailto:suraj.g.swami@gmail.com">suraj.g.swami@gmail.com</a>&gt;</span> wrote:<br>

<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div>Hi,</div><div><br></div><div>I am trying to use  the Stage simulation. I am following the tutorial given on the site</div>

<div><br></div><div><a href="http://ros.org/wiki/simulator_stage/Tutorials/SimulatingOneRobot" target="_blank">ros.org/wiki/simulator_stage/Tutorials/SimulatingOneRobot</a></div>

<div><br></div><div>I am able to run the simulation environment and even the command </div><div><br></div><div><div>rosrun teleop_base teleop_base_keyboard base_controller/command:=cmd_vel</div><div><br></div><div>But I get a very slow response to the inputs typed on the keyboard. I see the robot moving very  slowly and after few minutes. Later on the blue robot just disappears from the screen. </div>



<div><br></div><div>Do I need to change any parameters in the world file ? </div><div>I even tried changing the world file to </div><div><br></div><div><div>interval_sim 1  # simulation timestep in milliseconds</div><div>



interval_real 1  # real-time interval between simulation updates in milliseconds </div><div><br></div><div>But I still get the same response. </div></div><div><br></div><div>I have one more concern.</div><div> </div><div>



I was not able to run the command </div><div><div>rosrun rviz rviz -d rviz/stage.vcg</div><div><br></div><div>I get the following error. </div><div>No protocol specified</div><div>Error: Unable to initialize gtk, is DISPLAY set properly?</div>



<div><br></div><div>The result of the command $ echo $DISPLAY</div><div>:0.0</div><div><br></div><div><br></div></div></div><div>Basically I trying to use ROS for a good simulation environment for my project. Do you recommend me to use Stage or do we have a new simulation environment by ROS ? </div>



<div><br></div><div>Thank you.</div><div><br></div><br clear="all">Regards,<br><font color="#888888">Suraj Swami<br><br><br>
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