diff --git a/src/traits/sample.rs b/src/traits/sample.rs
index 06ff677c..e44e0cad 100644
--- a/src/traits/sample.rs
+++ b/src/traits/sample.rs
@@ -5,13 +5,5 @@ pub trait UniformSphereSample {
     fn sample(&fn(&'static Self));
 
     /// Gets the list of all samples.
-    fn sample_list() -> ~[&'static Self] {
-        let mut res = ~[];
-
-        do UniformSphereSample::sample::<Self> |s| {
-            res.push(s)
-        }
-
-        res
-    }
+    fn sample_list() -> &[Self];
 }
diff --git a/src/vec_spec.rs b/src/vec_spec.rs
index a466a579..3859fe92 100644
--- a/src/vec_spec.rs
+++ b/src/vec_spec.rs
@@ -149,6 +149,13 @@ impl UniformSphereSample for Vec2<f64> {
              f(sample)
          }
      }
+
+    #[inline]
+    fn sample_list() -> &[Vec2<f64>] {
+        let res: &[Vec2<f64>] = SAMPLES_2_F64;
+
+        res
+    }
 }
 
 impl UniformSphereSample for Vec3<f64> {
@@ -158,4 +165,11 @@ impl UniformSphereSample for Vec3<f64> {
             f(sample)
         }
     }
+
+    #[inline]
+    fn sample_list() -> &[Vec3<f64>] {
+        let res: &[Vec3<f64>] = SAMPLES_3_F64;
+
+        res
+    }
 }