      CS::Grid Value    C:\Users\KatachiHome\AppData\Roaming\MAXON\CINEMA 4D R13_05DFD2A0\plugins\DPIT Plants & Effex 2.0\res\help\EN\Effex\fx_constraints_gridvalue.html                    default.tif                  Object Header   The Grid Value constraint reads out a value from any Scalar Grid Channel and based on a range remaps the value which is then used as intensity for the calling node operation.<br>
It can be used to allow emission of other data only if a certain type of data is available. For example to emit smoke according to the temperature (although the combustion node does this automatically).
But it could also simply be used to control cell operator values written into a grid or for remapping values in a grid or or or... 