2 variable scan of a simulation

Hallo.

I have a comlex simulation that gives out a scalar output. I want to plot this output dependence on to variables as a 3D (color map) plot.

depict explanation: I want to set range and intervals for those variables, let the simulation run in each set of the two and then plot the whole thing as 1 surface when X,Y axis are of the variables and the color is the output.

help appericiated. Thank you. Daniel.