14 lines
315 B
Rust
14 lines
315 B
Rust
use super::types::Vector3;
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extern crate nalgebra as na;
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/// Reflects a vector `v` around a normal `n`.
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pub fn reflect(v: Vector3, n: Vector3) -> Vector3 {
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v - 2.0 * v.dot(&n) * n
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}
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/// Mirrors a vector `v` around a normal `n`.
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pub fn mirror(v: Vector3, n: Vector3) -> Vector3 {
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2.0 * v.dot(&n) * n - v
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}
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