diff --git a/src/f32/scalar/vec4a.rs b/src/f32/scalar/vec4a.rs
index bf36ff90..3b526133 100644
--- a/src/f32/scalar/vec4a.rs
+++ b/src/f32/scalar/vec4a.rs
@@ -729,13 +729,27 @@ impl Vec4A {
         }
     }
 
-    /// Returns a vector containing the fractional part of the vector, e.g. `self -
-    /// self.floor()`.
+    /// Returns a vector containing the fractional part of the vector as `self - self.trunc()`.
+    ///
+    /// Note that this differs from the GLSL implementation of `fract` which returns
+    /// `self - self.floor()`.
     ///
     /// Note that this is fast but not precise for large numbers.
     #[inline]
     #[must_use]
     pub fn fract(self) -> Self {
+        self - self.trunc()
+    }
+
+    /// Returns a vector containing the fractional part of the vector as `self - self.floor()`.
+    ///
+    /// Note that this differs from the Rust implementation of `fract` which returns
+    /// `self - self.trunc()`.
+    ///
+    /// Note that this is fast but not precise for large numbers.
+    #[inline]
+    #[must_use]
+    pub fn fract_gl(self) -> Self {
         self - self.floor()
     }