Hi,
I’ve tried meshpatch, meshfrompoints, but neither are very good, I’ve tried a trial version of VRMesh which works well, then I saw the full version is £1700!!.. any advice on a cheaper alternative, preferably within Rhino
Thanks
Grasshopper>Delaunay…? Cost 0$… but you will need to explode your point cloud or script a Grasshopper component to do so, as Grasshopper cannot reference point clouds…
–Mitch
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Does the point cloud represent a surface or a volume?
Do the points and the mesh vertices need to coincide?
If the point cloud represents a surface and the mesh vertices do not need to coincide with the points, then try using Patch to generate a NURBS surface and then convert the surface to a mesh.
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It’s a volume, 3 statues of people. Actually when I exploded the point cloud and then did the Meshfrompoints command I was given a mesh, I’m not that happy with the mesh but I think it’s down to the point cloud information, it can only use what it has and I don’t think it’s detailed enough for a detailed model.
Though I would also like to ask, I exported a mesh to 3DS Max to see if I could clean it up, it was really hard to manage, to do anything with, any tips on exporting this to Max?
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If you don’t mind trying out new tools, you might be interested in the Point Cloud Skinner add-on for Blender. See http://blenderartists.org/forum/showthread.php?241950 for information on the add-on.
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Or try out MeshLab. http://meshlab.sourceforge.net
Hi Mart,
if you can post your pointclouds or send them via pm i can try to mesh them or show how to do it using free software.
c.
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Hi Everyone!
I am looking for a way to convert point clouds of a tunnel into a mesh.
Is there any solution either paid or free?
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Hi @vusal.jalilov,
_
c.
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did you manage to find a way
after 5 years I am still stuck at this point
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I was able to mesh tunnels using Volvox - I was trying to use it in Revit but its really not usable in Revit sadly.
It did make a mesh from point cloud without any problems though, it depends what you need to use it in afterwards, but I was 100% able to make a mesh easily.
I also tried pointcloud compare, which did not make very good meshes for tunnels, it tends to fill across the middle of the tunnel.
In Rhino 8, I’d try ShrinkWrap.
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@brian
I fully agree and since I use Rhino8 this has been a huge help.
There is 1 problem though, maybe you might help with that.
When using Shrinkwrap with thickness 0 it sometimes recognizes “planar” surfaces as “bubbles” as to be seen in the screenshot.
Of course the points have a kind of noise and are not ideally planar.
Is there a way to control this behaviour via shrinkwrap?
Input
Output
It’s hard for me to tell what you mean from screenshots.
Is this planar surface aligned with any of the XY, XZ, or YZ planes? I bet they’re not. Since this uses voxels, and the voxels are world aligned, so you get bubbles. If the voxel size is smaller than the distance between points you are guaranteed to get holes.
@brian
Maybe I was not understanding the way shrinkwrap works correcty.
Thanks to your input and more research I think I am on the wrong track here.
So I assume shrinkwrap will help me a great deal as soon as I have pointclouds that describe a solid piece.
If I want to convert a pointcloud that represents a surface “only” I will have to use grasshopper and the Delaunay component there or try it via Mesh.CreateFromTessellation.
Yes, I think fitting a mesh to point clouds that define the surface is better done using other methods. Shrinkwrap assumes a solid structure.
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