When to make LODs (2021)

[iFire]

In godot engine we decide to do a continuous level of detail based a pixel error metric. (simplified explanation pixel-error -> based on fov -> based on floating point error of the meshopt_simplifyWithAttributes function)

The 12 ish lods are automatically generated by https://github.com/zeux/meshoptimizer.

https://docs.godotengine.org/en/stable/tutorials/3d/mesh_lod...

We allow a hierarchical level of detail if people want to set it up.

[iFire]

Our budget couldn't afford Epic Games style nanite, but there are three js implementions.. so it's not impossible to recreate.

- https://github.com/AIFanatic/three-nanite

- https://news.ycombinator.com/item?id=42974461

three-nanite is based on https://github.com/zeux/meshoptimizer cutting each mesh into maybe 124 triangles per chunk.

[e-topy]

Jason Booth (the author) also has a YouTube channel talking about similar topics. I really liked his 'Practical Optimizations' video: https://youtu.be/NAVbI1HIzCE

[jodrellblank]

Thanks for the cool video link!

[mrala]

LOD = level of detail