Add nalgebra to the prelude to make the macros work out of the box

benchmarks3d/Cargo.toml

@@ -14,7 +14,6 @@ enhanced-determinism = [ "rapier3d/enhanced-determinism" ]
 [dependencies]
 rand       = "0.8"
 Inflector  = "0.11"
-nalgebra   = "0.27"
 
 [dependencies.rapier_testbed3d]
 path = "../build/rapier_testbed3d"

benchmarks3d/all_benchmarks3.rs

@@ -1,7 +1,5 @@
 #![allow(dead_code)]
 
-extern crate nalgebra as na;
-
 #[cfg(target_arch = "wasm32")]
 use wasm_bindgen::prelude::*;
 

benchmarks3d/heightfield3.rs

@@ -1,4 +1,4 @@
-use na::ComplexField;
+use rapier3d::na::ComplexField;
 use rapier3d::prelude::*;
 use rapier_testbed3d::Testbed;
 

benchmarks3d/trimesh3.rs

@@ -1,4 +1,4 @@
-use na::ComplexField;
+use rapier3d::na::ComplexField;
 use rapier3d::prelude::*;
 use rapier_testbed3d::Testbed;