Heigh field mesh

[Yoann Courtois]

Hi !

I'm currently trying to generate super thin mesh of a slab in order to modeling the smallest deformations.
I have created a super dense point cloud of the slab (avg 1.6pts/mm²)

As it's a almost flat surface (there is no overhang), I was going to use height field meshing as its generation is much faster than arbitrary meshing.
As I want to keep the dense cloud resolution, I don't need any decimation of the mesh. So I used a face-number custom-value set at 0.

But it create me a super low resolution mesh (about 150 000 faces)...whereas if I used arbitrary meshing with the same parameter, I got my desired mesh (more than 53 000 000 faces)

I finally got what I needed, but to my mind I could have done it quicker using height field meshing.

Maybe there is a problem in custom-value height field meshing ? 

Regards

[Alexey Pasumansky]

Hell Yoann,

"Zero" value works differently for Arbitrary and Height Field modes.
If you set "zero" in Height Field mode the triangulation process continues until the difference between values in DEM grid and triangulated values are less then half of a grid step. So if you need high number of polygons in this mode, then you need to set up large value, like 100 - 200 millions.

[Yoann Courtois]

Ok thank you !

But how is defined the grid step ?