Less blocking terrain mesh generation #59
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| use TextureName::*; | ||
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| #[derive(Resource)] | ||
| #[derive(Resource, Clone)] |
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No idea how to circumvent this.
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The clone shouldn't be too expensive though, as we are only cloning a hashmap with a few primitives.
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The atlas currently consists of 16 slots, so there are not many UVs and enum values that will be cloned.
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| let mut index = 0; |
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Ugly index, can't use enumerate() in this context.
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| #[derive(Clone, PartialEq)] | ||
| pub enum MeshType { |
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Reminder:
A logical Chunk of terrain has two geometrical representations:
A solid one, for the cubes like stone and dirt and a transparent one for the grass at the moment, perhaps glass and other stuff in the future.
src/client/terrain/systems.rs
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| let mesh_option = task_result.unwrap(); | ||
| if mesh_option.is_none() { | ||
| return; |
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Info: If chunk is empty, a None Mesh will be created.
In that case the world should not be updated.
Mesher that does not increase frame times that much
As a follow up on a recent lecture @ ZHAW about concurrency and parallelism, I decided to optimize the mesher systems with an async task pool.
This is an attempt at improving terrain loading performance on the client by using background computations and polling task state.
This opens up the world of possibilities, as the terrain could now be infinite as generating chunk meshes on the fly won't be as blocking as before. Also the load times are significantly reduces as the meshing happens in the background.
Similar to what has been done here:
https://github.com/CuddlyBunion341/beertalk-workers/blob/main/slides.md
Note
This is my first time writing asynchronous Rust code, please be gentle ^^
Everything except for ea89014 is human written.
Before
Untitled.mp4
After
CleanShot.2025-03-16.at.22.36.55.mp4
Todo
Sources
Heavily inspired by: https://bevy-cheatbook.github.io/fundamentals/async-compute.html