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FAQ:
Q: How do you make a Minecraft mesh?
A: So with the preliminaries settles, let’s investigate some possible approaches: The absolute dumbest way to generate a Minecraft mesh is to just iterate over each voxel and generate one 6-sided cube per solid voxel. For example, here is the mesh you would get using this approach on a 8x8x8 solid region:
Q: How to reduce the cost of Minecraft meshes?
A: The only way this cost can be reduced is by reducing the total number of polygons in the mesh, and so we make the following blanket statement about Minecraft meshes: Criteria 1: Smaller meshes are better meshes. Of course, the above analysis is at least a little naive.
Q: Why is my mesh taking so long to generate?
A: The second column is the average time required to mesh the volume in milliseconds. The third and fourth columns are the number of vertices and faces respectively. These results shouldn’t be too surprising. As the frequency increases, the number of surface elements goes up, and so it ends up taking longer to generate the mesh.
Q: Can We do better with Minecraft-style meshing?
A: However, in the case of Minecraft-style meshing, we can actually do much better. The key thing is to realize that the number of voxels is strictly much greater than the number of vertices.