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generate a navmesh from an heightfield #22

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mockersf opened this issue Jan 29, 2023 · 2 comments

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mockersf commented Jan 29, 2023

possible solution from recast: steps 3 to 5 of https://9631ec60-a-62cb3a1a-s-sites.googlegroups.com/site/recastnavigation/MikkoMononen_RecastSlides.pdf

watershed partitioning to find regions
contour the regions to get polygons
triangulate the polygons to get a trimesh

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Release on crates.io vleue/vleue_navigator#10

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Elabajaba commented Aug 21, 2024 •

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The recast slides linked aren't working for me, but here's an alternative algorithm.

Fast Polygonal Approximation of
Terrains and Height Fields
Michael Garland and Paul S. Heckbert
September 19, 1995
CMU-CS-95-181
https://www.cs.cmu.edu/%7Egarland/scape/scape.pdf

Implementations:
https://github.com/fogleman/hmm (MIT)
https://github.com/mapbox/delatin (ISC, based on hmm)

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mockersf commented Sep 6, 2024

Thanks!

I had a local copy of the slides, here they are: MikkoMononen_RecastSlides.pdf

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