The Slope rollout allows steering the occurrence of entities based on the surface angle evaluation.
Minimum - Specifies the lower bound of the slope angle range.
Maximum - Specifies the upper bound of the slope angle range.
The Minimum and Maximum parameters serve as the beginning and end of the falloff interval. It is worth mentioning that both are used by the falloff regardless of the on-ness state of this constraint.
Density & Scale Falloffs
The Density & Scale Falloff enables the reduction and scaling of elements based on the provided Limit parameters. Those may come especially useful when dealing with uneven terrain, as vegetation hardly tends to grow on hillsides. Those can be also used in reverse helping to cover hillsides with rocks. Please refer to the Falloff Graph section for a detailed explanation of their parameters.