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Lecture 8: Meshes and Geometry Processing (78)
tanmayghai18

I am a little bit confused by this. Could someone explain where the 4/3rds mean and 4/5ths mean edge length come from?

Staffsethlu

I think the mean edge length here comes from taking an average of the lengths of all edges in the geometry. And edges with lengths over 1.33x the mean edge length will be split; those with lengths less than 0.8x the mean edge length will be collapsed.

hershg

Any idea what was meant by "center vertices tangentially"? I assume this is some way of making the triangles of more uniform area/shape

afang-story

The last point refers to using tangential smoothing, which is moving vertices in the tangent plane of the vertex to enhance triangle shapes Details are in part 4 of this paper https://www.graphics.rwth-aachen.de/publication/101/remeshing1.pdf

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