Simulation Mode requires users to define the surfaces where they want to see the analysis results before starting the raytrace. This is done by applying an Exit Surface Property to the surface or surfaces where you want to see the raytrace results. You can have as many Exit Surfaces as you want or need.
Simulation Mode saves the ray data to the hard drive on your computer, rather than to RAM, so you can run much longer raytraces in Simulation Mode. Simulation Mode saves the ray data in a .sim file, so it is possible to view the results in the future without having to re-run the raytrace.
Rays are not displayed in Simulation Mode. Analysis results can only be viewed on surfaces that have been predefined as Exit Surfaces. Ray Histories are also not available in Simulation Mode.
A good option is to start with Analysis Mode so where you can see the rays and where they are going so that you can make sure the model is set up correctly. Then, when you need to trace more rays, you can easily switch to Simulation Mode.
The Simulation Mode raytrace in TracePro gives you the flexibility to trace all the rays you need to meet your requirements.