Yeah 
this is what I want to do, I don’t need to genereted it on the fly, so I’ll do the last thing that you mentioned.
I’ll see your tutorials at funprogramming.org I think there’s what I’m looking for.
And about the specs of my laptop i have an intel i5 processor and an MD Radeon™ R7 M360, the number of vertices of the three volumes are around the million.