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emath: Add quadratic_in_inverse

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Varphone Wong
2024-06-07 09:27:32 +08:00
parent 22c46a3ac6
commit 61dd0153db
1 changed files with 8 additions and 0 deletions
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8
crates/emath/src/easing.rs
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@@ -26,6 +26,14 @@ pub fn quadratic_in(t: f32) -> f32 {
t * t
}
/// Inverse of `quadratic_in`.
///
/// This is not the same as `1.0 - quadratic_in(t)`.
#[inline]
pub fn quadratic_in_inverse(y: f32) -> f32 {
y.sqrt()
}
/// <https://easings.net/#easeOutQuad>
///
/// Same as `1.0 - quadratic_in(1.0 - t)`.