ok here’s my task,
I want to have a 3d array (x,y,z) which contains either 1 for solid, 0 for empty, and then skin/generate a 3d mesh based on this, so for example I could have a sphere, blobs or 3d noise filling the array with 1’s and 0’s.
I know how to create a grid from a vertex list and displace using a heightfield map, but obviously a 3d object is a little more complicated.
I’ve been looking on the net for resources, but not even sure what terminology/concepts I should be searching for.
Ayy pointers to resources/guides welcome, or even better if someone has already done this with code examples 
thanks.
ok i’ve so far learned that it’s ‘point cloud’ data I need to understand, and how to convert to a 3d mesh…
back to google…
Actually wha do you have a 3d array at first? If you have no choice, then fine, but else it is probably the worst way to save a 3d model.
The link is the right way, if your model is convex.
what is a convex model?