Context: Iteration, Coloring
This variable allows a formula writer to write formulas using some kind of distance estimation:
The small step will be written into this parameter: You may read from it. And you may write into it: If you have some kind of distance estimation algorithm, you can set this variable to the estimated distance: ChaosPro will then advance by that amount on the current ray. If you don't set estimatedDistance, the default value will be used.
If you set estimatedDistance to 0, then you tell ChaosPro: "Object has been hit! Stop now!".