View scalar on surface of building with polygonal bases. Cutting?

I have solved my problem.programmatically.
In my simulation software, after triangulating the polygons, I proceeded to sub-triangulate them for a number of times I want.

Low Sub-Triangulation: Surface

Low Sub-Triangulation: Surface with Edges

High Sub-Triangulation: Surface

High Sub-Triangulation: Surface with edges

thank you all. See you in this forum