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doc: Add doc comment, make face_*normal() pub.

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Shane Celis 2024-11-01 19:21:13 -04:00
parent 07bd6394db
commit df578ff8b0
1 changed files with 5 additions and 2 deletions
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7
crates/bevy_mesh/src/vertex.rs
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@ -152,12 +152,15 @@ pub(crate) struct MeshAttributeData {
/// By computing _2 A_ we avoid a division operation, and when calculating the
/// the sum of these vectors which are then normalized, a constant multiple has
/// no effect.
pub(crate) fn face_area_normal(a: [f32; 3], b: [f32; 3], c: [f32; 3]) -> [f32; 3] {
#[inline]
pub fn face_area_normal(a: [f32; 3], b: [f32; 3], c: [f32; 3]) -> [f32; 3] {
let (a, b, c) = (Vec3::from(a), Vec3::from(b), Vec3::from(c));
(b - a).cross(c - a).into()
}
pub(crate) fn face_normal(a: [f32; 3], b: [f32; 3], c: [f32; 3]) -> [f32; 3] {
/// Compute the normal of a face made of three points: a, b, and c.
#[inline]
pub fn face_normal(a: [f32; 3], b: [f32; 3], c: [f32; 3]) -> [f32; 3] {
let (a, b, c) = (Vec3::from(a), Vec3::from(b), Vec3::from(c));
(b - a).cross(c - a).normalize().into()
}