Contents
- 1 Which is better voxel mesh or Marching cube mesh?
- 2 How to smooth the blocks of a 3D voxel world?
- 3 When was the smooth voxel terrain first published?
- 4 Which is a generalization of a triangular mesh?
- 5 How are marching tetrahedra different from cubes and cubes?
- 6 Why are surfaces produced by marching tetrahedra always manifold?
Which is better voxel mesh or Marching cube mesh?
In particular, the meshes you get from marching tetrahedra are typically about 4x larger than marching cubes. This makes both the algorithm and rendering about 4x slower. If your main consideration is performance, you may be better off using a cubical method.
How to smooth the blocks of a 3D voxel world?
In order to change the look/smoothness you change the density function and the threshold of the marching cubes algorithm.
How are marching cubes used to smooth meshes?
A possible extension to marching cubes to create smoother meshes is the following idea: Imagine that you encounter two points on an edge of a cube, where one point lies inside your volume (above a threshold) and the other outside (under the threshold). In this case many marching cubes algorithms place the boundary exactly at the middle of the edge.
When was the smooth voxel terrain first published?
It was originally published back in SIGGRAPH 87, and then summarily patented by the Lorensen and Cline. This fact has caused a lot of outrage, and is been widely cited as one of the classic examples of patents hampering innovation.
Which is a generalization of a triangular mesh?
If you’ve never heard of the word cell complex before, you can think of it as an n-dimensional generalization of a triangular mesh, where the `cells’ or facets don’t have to be simplices.
Is the surface of a Marching cube always manifold?
Marching tetrahedra does not have ambiguous topology, unlike marching cubes. As a result, surfaces produced by marching tetrahedra are always manifold.
How are marching tetrahedra different from cubes and cubes?
Marching tetrahedra does not have ambiguous topology, unlike marching cubes. As a result, surfaces produced by marching tetrahedra are always manifold. The amount of geometry generated per tetrahedra is much smaller, which might make it more suitable for use in say a geometry shader.
Why are surfaces produced by marching tetrahedra always manifold?
As a result, surfaces produced by marching tetrahedra are always manifold. The amount of geometry generated per tetrahedra is much smaller, which might make it more suitable for use in say a geometry shader. Finally, marching tetrahedra has only cases, a number which can be further reduced to just 3 special cases by symmetry considerations.