The Scene Tab holds the simulation quality settings and the ground setup for the whole scene.

• Performance Settings:
  • A dropdown menu offers Low, Medium, and High performance presets. Each preset sets the values below and the body collision type:
    • Low: 10 Substeps Per Frame, 25 Solver Iterations, Convex Hull body collision.
    • Medium: 15 Substeps Per Frame, 35 Solver Iterations, Convex Hull body collision.
    • High: 25 Substeps Per Frame, 50 Solver Iterations, Mesh body collision.
  • Split Impulse: Limits the force with which objects are separated on collision, which reduces extra velocity that can build up when objects collide. It generally produces nicer results but makes the simulation a little less stable (especially when stacking many objects), so use it only when necessary.
  • Substeps Per Frame: Number of simulation steps taken per frame (higher values are more accurate but slower). This only influences the accuracy and not the speed of the simulation.
  • Solver Iterations: Amount of constraint solver iterations made per simulation step (higher values are more accurate but slower). Increasing this makes constraints and object stacking more stable.
• Ground Collection: Holds a collection of objects that are combined into the RBC Ground object. The Collection needs at least 1 object for some features to work.
• Warnings: If an RBC ground object or the Ground Collection is missing, the tab shows a warning. Use the Add RBC Ground and Add RBC RB Ground buttons that appear to create the missing objects.

NOTE: Your scene will need the RBC RB Ground object and the RBC Ground object for certain features to work.

RBC Ground Object: An object that merges all the objects in the RBC Ground Collection into one single object, used for important features like Wheel Contact Position, Tire Marks and Guide Path Shrinkwrap.

RBC RB Ground Object: A Rigid Body object used for important Physics features like Downward Force and Lean Force.