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Fix Triangle2d/Triangle3d interior sampling to correctly follow triangle (#12766)

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# Objective

When I wrote #12747 I neglected to translate random samples from
triangles back to the point where they originated, so they would be
sampled near the origin instead of at the actual triangle location.

## Solution

Translate by the first vertex location so that the samples follow the
actual triangle.
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Matty 2024-03-29 09:10:23 -04:00 committed by GitHub
parent 741803d8c9
commit bcdb20d4f3
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1 changed files with 2 additions and 2 deletions
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crates/bevy_math/src/shape_sampling.rs
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@ -159,9 +159,9 @@ fn sample_triangle_interior<P: NormedVectorSpace, R: Rng + ?Sized>(
if u + v > 1. { if u + v > 1. {
let u1 = 1. - v; let u1 = 1. - v;
let v1 = 1. - u; let v1 = 1. - u;
ab * u1 + ac * v1 a + (ab * u1 + ac * v1)
} else { } else {
ab * u + ac * v a + (ab * u + ac * v)
} }
} }