There isn’t that much precision in f32...

2024-11-07 00:39:42 +03:00 · 2024-11-07 00:39:42 +03:00 · 64d53cf72b
commit 64d53cf72b
parent cc39a249b7
1 changed files with 1 additions and 1 deletions
--- a/src/riemann.rs
+++ b/src/riemann.rs
@ -15,7 +15,7 @@ pub trait Metric {
 	}

 	fn part_derivs_at(&self, pos: Vec3) -> Tens3 {
-		part_deriv(|p| self.at(p), pos, 1.0 / 1024.0) // division by such eps is exact which is good for overall precision
+		part_deriv(|p| self.at(p), pos, 1.0 / 64.0) // there just isn’t enough precision for a small ε.
 	}

 	fn vec_length_at(&self, at: Vec3, v: Vec3) -> f32 {