Generating 3D Heat Map from a CSV File

[Anonymous]

I have a 4 x n array of data in csv format, structured as follows

X      Y      Z       Intensity

0      0      0       1.3356

...

where (X, Y, Z) is the position coordinate and Intensity is simply a measurement at the specified position. I would like to generate a 3 dimensional heat map from this set of data in AutoCAD Map 3D or AutoCAD Civil 3D, but have not found a clear way to produce such result. 

[Pointdump]

PZ,

In QGIS it's easy:
http://www.qgistutorials.com/en/docs/creating_heatmaps.html

In Map 3D, well....
I've attached a step-by-step video from @Alfred.NESWADBA

As for making it "3D", here's a cool step-by-step from @Anonymous
https://map3d.wordpress.com/2009/08/17/putting-3d-back-in-map3d/

Dave