Skip to content

neka-nat/gazebo_domain_randomization

Repository files navigation

Gazebo Domain Randomization

Build Status

https://arxiv.org/abs/1703.06907

Double pendulum demo

result

Shadow hand demo

sr_hand

Run

roslaunch gazebo_domain_randomizer demo.launch

If you want to randomize with external trigger, execute with the following option.

roslaunch gazebo_domain_randomizer demo.launch event_mode:='trigger'

And please execute the following command on another console.

rostopic pub /randomizers/randomizer/trigger std_msgs/Empty "{}"  -r 1.0

Settings

To use the randamizers, you need to make the following two settings.

  1. For physics parameters randomization, set physics_plugin (WorldPlugin) in the world file.
<sdf version="1.6">
  <world name="default">
    <include>
      <uri>model://sun</uri>
    </include>
    <include>
      <uri>model://ground_plane</uri>
    </include>
    ...
    <plugin name="physics_plugin" filename="libgazebo_physics_plugin.so"/>
  </world>
</sdf>
  1. For visual randomization, you need to load scene_plugin (SystemPlugin) for gzclient. Therefore, please use the gzclient script in gazebo_domain_randomizer package. It configures to load the system plugin in the script.
<launch>
  ...
  <include file="$(find gazebo_ros)/launch/empty_world.launch">
    <arg name="gui" value="false" />
  </include>
  <node name="gazebo_gui" pkg="gazebo_domain_randomizer" type="gzclient" respawn="false" output="screen" />
  ...
</launch>

Randomizers

Node name Randomized parameter
light_randomizer - light color
- attenuation
shape_randomizer - shape(sphere, box, cylinder)
- shape color
- position(x, y, z)
sky_randomizer - time of day
physics properties randomizer - gravity(x, y, z)
link_properties_randomizer - link mass
joint_properties_randomizer - joint damping
link_visual_properties_randomizer - link color
surface_params_randomizer - link mu1, mu2, mu_torsion
- link poisson ratio