3d plot of 3 numerical parametric functions, each having 3 independent variables

 i have 3 data sets, not symbolic functions, where each data set is result of calculation/simulation with 3 independent variables. i want to plot the 3 data sets (parametric functions) in 3d. i dont think a surface plot is possible since it will not be a smooth surface or a hollow shape. i think the output should look like a scatter plot. i dont need to show the independent variables in the plot.

that is: F = f(x,y,z); G = g(x,y,z); H = H(x,y,z);

i want to make a 3d plot of F, G, H. no need to show x,y,z and then, calculate which point on the 3d plot is closes to the origin. (this one is easy)