bevy/crates/bevy_mikktspace/Cargo.toml

[package]
name = "bevy_mikktspace"
version = "0.8.0-dev"
edition = "2021"
authors = ["Benjamin Wasty <benny.wasty@gmail.com>", "David Harvey-Macaulay <alteous@outlook.com>", "Layl Bongers <LaylConway@users.noreply.github.com>"]
description = "Mikkelsen tangent space algorithm"
documentation = "https://docs.rs/bevy"
homepage = "https://bevyengine.org"
repository = "https://github.com/bevyengine/bevy"
license = "Zlib AND (MIT OR Apache-2.0)"
keywords = ["bevy", "3D", "graphics", "algorithm", "tangent"]

[dependencies]
glam = "0.20.0"

[[example]]
name = "generate"
Generate vertex tangents using mikktspace (#3872) # Objective Models can be produced that do not have vertex tangents but do have normal map textures. The tangents can be generated. There is a way that the vertex tangents can be generated to be exactly invertible to avoid introducing error when recreating the normals in the fragment shader. ## Solution - After attempts to get https://github.com/gltf-rs/mikktspace to integrate simple glam changes and version bumps, and releases of that crate taking weeks / not being made (no offense intended to the authors/maintainers, bevy just has its own timelines and needs to take care of) it was decided to fork that repository. The following steps were taken: - mikktspace was forked to https://github.com/bevyengine/mikktspace in order to preserve the repository's history in case the original is ever taken down - The README in that repo was edited to add a note stating from where the repository was forked and explaining why - The repo was locked for changes as its only purpose is historical - The repo was integrated into the bevy repo using `git subtree add --prefix crates/bevy_mikktspace git@github.com:bevyengine/mikktspace.git master` - In `bevy_mikktspace`: - The travis configuration was removed - `cargo fmt` was run - The `Cargo.toml` was conformed to bevy's (just adding bevy to the keywords, changing the homepage and repository, changing the version to 0.7.0-dev - importantly the license is exactly the same) - Remove the features, remove `nalgebra` entirely, only use `glam`, suppress clippy. - This was necessary because our CI runs clippy with `--all-features` and the `nalgebra` and `glam` features are mutually exclusive, plus I don't want to modify this highly numerically-sensitive code just to appease clippy and diverge even more from upstream. - Rebase https://github.com/bevyengine/bevy/pull/1795 - @jakobhellermann said it was fine to copy and paste but it ended up being almost exactly the same with just a couple of adjustments when validating correctness so I decided to actually rebase it and then build on top of it. - Use the exact same fragment shader code to ensure correct normal mapping. - Tested with both https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/NormalTangentMirrorTest which has vertex tangents and https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/NormalTangentTest which requires vertex tangent generation Co-authored-by: alteous <alteous@outlook.com> 2022-05-31 22:53:54 +00:00			`[package]`
			`name = "bevy_mikktspace"`
			`version = "0.8.0-dev"`
			`edition = "2021"`
			`authors = ["Benjamin Wasty <benny.wasty@gmail.com>", "David Harvey-Macaulay <alteous@outlook.com>", "Layl Bongers <LaylConway@users.noreply.github.com>"]`
			`description = "Mikkelsen tangent space algorithm"`
			`documentation = "https://docs.rs/bevy"`
			`homepage = "https://bevyengine.org"`
			`repository = "https://github.com/bevyengine/bevy"`
			`license = "Zlib AND (MIT OR Apache-2.0)"`
			`keywords = ["bevy", "3D", "graphics", "algorithm", "tangent"]`

			`[dependencies]`
			`glam = "0.20.0"`

			`[[example]]`
			`name = "generate"`