[BUG] find_best_vertex_spilt in tmf_exporter.rs panics if best_split_index is the last vertex

[dbartussek]

The find_best_vertex_split function iterates over all vertices:

tmf/src/tmf_exporter.rs

Line 319 in 9c5f61b

for (index, vertex) in vertices.iter().enumerate() {

However, immediately after the loop, there is an assertion that best_split_index may not be the last vertex:

tmf/src/tmf_exporter.rs

Line 339 in 9c5f61b

assert!(best_split_index < vertices.len() - 1);

While testing file sizes of different formats, I've encountered a model that apparently meets this edge case, resulting in an assertion error.

This is the mesh I am trying to export. It's the dragon sample model from the official glTF samples with computed tangents, run through meshopt: dragon.zip

[FractalFir]

It was a stupid logic error. The assertion was supposed to check that the algo never returns Some(last_index). I moved the assertion to the Some-returning arm of the if statement.

Should be fixed in 0.2.1