This flashcard is just one of a free flashcard set. See all flashcards!

Given: Volumetric representation

Impose regular grid of cubes over the volume.
For every cube cell:

• Sample the values of at the eight cube vertices
• Based on a lookup table with entries, decide which geometry to generate for this cell
• Compute intersection positions for vertices on the cube edges. For instance, the position of the vertex right of is

Disadvantages:

• Creates mesh which can be highly over-sampled (requires Decimation) and contain bad triangle shapes (requires Mesh Optimization / Re-Meshing)
• Linear interpolation of distance values approximates smooth surfaces: Sharp features within cells are lost
• Aliasing artifacts due to alignment of the voxel grid. Increasing voxel resolution only reduces the size of the artifacts but they never go away