How can I simulate a diffusive process with ROS

Hello,
I need to know if might be possible to simulate a diffusive process i.e. to set some environmental parameter like light or brighteness of an infrastructure like a wall, and detect with a sensor (vision sensor).

Thanks in advance
Davide

If you’re looking to simulate processes you’ll want to use a simulator. There are several with ROS integration, for what you’re looking to do I’d suggest looking at using Gazebo. To that end I’d suggest you ask for help on Gazebo Answers archive or on one of the other simulator’s forums.

Please note that we ask that people ask questions about ROS on answers.ros.org following our Support Guidelines: Support - ROS Wiki I’m redirecting you to Gazebo’s instance to save you another step.