4/6/2023 0 Comments Meshlab fill holesI decided that the easiest way would be to close the hole by adding a base as that would also fix the problem that the bottom of the model wasn’t flat.Īdding a base requires two things. For this stone model the large hole at the bottom, where the stone was buried in the ground, is unlikely to be able to be filled using any Meshlab option.Small holes where the photogrammetry process didn’t quite work can be filled using Meshlab ( Filters > Remeshing, Simplification and Reconstruction > Close Holes ) The manifold fixes will need to be done before running the Meshlab tool. Any holes in the mesh need to be filled.Mister P’s video on how to fix manifold problems: The mesh needs to be manifold ( simple explanation or very complicated Wikipedia definition for the full story ).This can be fixed by a combination of tweaking the MVE parameters and by manually editing the mesh after creation. There needs to be just one mesh with no unconnected parts.The mesh as it stands after the photogrammetry process is not suitable for 3D printing directly and there a few things that need to be done: These cover all sorts of useful techniques, just ignore the cheesy music at the start. The most useful resource that I’ve found is a series of YouTube videos – Mister P. This is a great tool but the documentation can be a bit lacking at times. Note: A lot of the editing work described below is done using Meshlab. However I’ve recently got access to a 3D printer, a Hictop CR10, so I bought myself a 1kg reel of filament for £16 and we started to experiment. Previously I’ve used Shapeways to print 3D models but, although quality of the printed output is top class, they’re a bit expensive for general experimentation. That way, rather than having holiday photos, I would be able to create more solid momentoes for my desk □ When you relinquish control to a program there's always a trade-off.One of my aims when investigating photogrammetry was to eventually be able to print out a 3D model of the scanned object. There are applications like MeshMixer that can do these tasks automatically, but I say this not as an endorsement - rather as an avenue to explore if you need to do this type of processing a lot. I don't think you'll get away with hitting F (to Fill) and Ctrl + T to triangulate the result. Select -> Select Similar -> Amount of Faces around an Edge.You do this by selecting one such edge, and then doing The problem then would be that the model now has holes that need to be filled.Ī strategy to continue this in Blender is to select all edges that only attach to 1 face. Then hit Z to see the model as see-through, you'll notice many unselected verts, those would be considered interior for your purposes.You can also use the other selection methods, C enters a mode that lets you "paint" selections by leftclicking and dragging the mouse around (esc to exit that mode). use box select ( b) to select the visible outer faces, and rotate the model around and add to the selected set by doing more box selects until all outer faces are selected. First in edit mode unselect all geometry.See an older version of the answer: If there is no disjoint interior geometry.
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