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Meshlab tutorial7/11/2023 Click BackDistance, then Apply and Close. Then, go to Filters > Colour Creation and Processing > Voronoi Vertex Colouring. To do this, first re select your sphere layer in the right hand panel by clicking on it. Now we can use the sample points to generate a voronoi colour pattern on the sphere mesh. This will generate and activate a new mesh layer, and you'll be able to vaguely see those 50 points scattered around the sphere. Leave all the other settings untouched, besides ticking the box for "Exact number of samples", then click Apply and Close. ![]() For this tutorial, I'll be generating 50 sample points. For a more dense voronoi, use more points. This is essentially selecting how many cells you would like to have in your final voronoi model. In the pop up window, you can define how many points you would like to be created. The points are at least a minimum distance apart, ensuring that we get a somewhat uniform distribution. What this does is create a new mesh layer, populated with a random set of points from our initial mesh. The filter we're using is called Poisson-disk Sampling, and can be found under Filters > Sampling > Poisson-disk Sampling. There's a lot, but I'm sure you get the idea. This could be a selection of certain faces and vertices, applying a colour to the mesh, smoothing, remeshing, resampling. A filter in MeshLab is any operation performed on the mesh. Below that we have some display and shading options, and at the bottom is an output window. Our current and only layer, the sphere, is highlighted in yellow. After that, you should have a sphere plonked right in the middle of your workspace!Īs you can see, this has also opened up a panel on the right hand side of our screen. This ensures that we have enough triangles in our sphere mesh to work with in the later stages. When prompted, keep the radius setting at 1 and set the subdivision level to 6. ![]() This can be generated right within the software under Filters > Create New Mesh Layer > Sphere. In order to make a voronoi sphere, we're going to need a plain old regular sphere mesh to start with. Once you've done that and opened it up, you'll be met with this user interface: The process The first step is going to be to head over to the MeshLab website and download and install it on your computer. For this tutorial, we'll be using only a few, but hopefully it will give you an idea of the huge range of applications that this software can have. MeshLab is an extremely powerful mesh manipulation tool with a lot of advanced capabilities.
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