![]() ![]() Think of it like moving from Minecraft to a Pixar movie Beware that each subdivision quadruples the number of triangles in the mesh, and quadruples the memory requirements. Before your very eyes Suzanne will change from a rough angular low-poly cartoon monkey to a smooth and elegant high-poly cartoon monkey. While watching your monkey increase the number of view subdivisions. From the properties panel select the modifiers menu and select sub division surface. Now your basic Suzanne is made up of less than 1000 triangles and that isn't nearly enough for our purposes so we will need to subdivide them. Clicking once should give you a little monkey on the middle of your screen Hit the decimal point on your numeric key pad, followed by the 1 on the numeric keypad and your view should zoom in. ![]() What's that, you didn't know monkey was a geometric shape? Its kind of a Blender tradition. Select the create tab and scroll down past the cube, the sphere, the cylinder, and all the other familiar primitive shapes until you get to to "monkey". The shape and density of the starting polygon mesh have a lot to do with the look of the final Voronoi mesh. In order to do this well we need to have a fairly fine mesh of polygons to work with. We will generate our seeds by randomly selecting points on the surface of our object and then generate Voronoi cells based on those seeds. It also makes it a lot less expensive if you are having it printed by a service like Shapeways. It also dramatically reduces the amount of material in a print which makes it quicker (if not necessarily easier) to print. The best thing to remember is that it makes a really cool pattern. Beyond that it gets into stuff involving lots of numbers and weird symbols and chalkboards full of writing that make my head hurt. ![]() Wave your magic wand and each dot (more properly called a seed) will generate a cell around itself consisting of every part of the surface which is closer to that seed than it is to any other seed. Take a surface (in this case the surface of our model) and scatter a bunch of dots on it. You will be glad to know that I don't understand the mathematical significance of this pattern, but it is pretty easy to understand the basics. When you created your 3D model and want to turn it into a physical part, you can use Sculpteo.The Voronoi diagram is named for Georgy Voronoy, a Russian mathematician who died in 1908 at the age of 40 (Useful info if you go to trivia night at a very geeky pub). Of course, you can access all of our tutorials here, and prepare your file for 3D Printing with other software as Rhinoceros or SolidWorks. Since a video is always more illustrative, here you have a web tutorial of Sculpteo, explaining the procedure of polygon reduction. This parameter affects the quality of the shape of the final triangles on planar portions of the mesh and improves the accuracy/complexity ratio.
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