Gazebo has been renamed from Ignition (back to Gazebo). Gazebo Garden is now released and set as default for Ubuntu and macOS. There are a number of namespace, environment variable and server settings that need to be updated.
[x] Rename the top level directory from SITL_Models/Ignition to SITL_Models/Gazebo.
[x] Update the docs to replace the IGN_ environment variables with their GZ_ replacements.
[x] The server providing the models has a different URL - the model and world files referencing online models need to be updated.
[x] Pending https://github.com/ArduPilot/ardupilot_gazebo/pull/32, a number of models may be simplified. There is a case to be made for having a base model free of plugins and then composing the desired configuration including plugins and other peripherals as composites.
Gazebo has been renamed from Ignition (back to Gazebo). Gazebo Garden is now released and set as default for Ubuntu and macOS. There are a number of namespace, environment variable and server settings that need to be updated.
IGN_environment variables with theirGZ_replacements.