What is the method to solve this problem?

Question

Programming

A friend turned to me with help in solving one problem: It is
necessary to generate and visualize a three-dimensional cube (18 * 18 * 18 million / billion). Each cell contains several coordinate parameters (local) and 5 different numerical parameters of double precision floating point numbers. Data must be stored in the database, sampling from the database should not exceed 3 seconds under load. Each point is a cube with dimensions depending on the visualizer. The color of the cube depends on the selected option (for example, the selected option 1 is a green gradient (0 dark green 1 light green step 0.1, etc.). The rendered cube must be able to rotate and save in graphic formats.
C # language, using only the libraries included in box.
18*18*18 - width height depth - geological cube.
I thought. I came to the conclusion that it can be easily solved using Unity and NoSQL storage. But this option is not suitable - you need to take all the tools out of the box, and the DBMS must be relational.
Please share your thoughts.
UPD: they write that this is a standard task for geological and hydrodynamic visualization / modeling.

Answer 1

Pre-generate 54 million images and reduce them to 1x1 thousand pixels for example.
Now you can simply select a maximum of 3 pictures for any slice and substitute for the sides of the cube.
Anyway, in any case, you will be able to display only an approximate view.