diff --git a/src/funs/common.rs b/src/funs/common.rs
index bc27d10..3fd1376 100644
--- a/src/funs/common.rs
+++ b/src/funs/common.rs
@@ -316,92 +316,268 @@ pub impl<T:Copy Approx> Vec4<T>: Approx {
     
 }
 
-pub trait MinMax {
+pub trait Extent {
     pure fn min(other: &self) -> self;
     pure fn max(other: &self) -> self;
+    pure fn clamp(mn: &self, mx: &self) -> self;
 }
 
-#[inline(always)] pub pure fn min<T:MinMax>(a: &T, b: &T) -> T { a.min(b) }
-#[inline(always)] pub pure fn max<T:MinMax>(a: &T, b: &T) -> T { a.max(b) }
+#[inline(always)] pub pure fn min<T:Extent>(a: &T, b: &T) -> T { a.min(b) }
+#[inline(always)] pub pure fn max<T:Extent>(a: &T, b: &T) -> T { a.max(b) }
+#[inline(always)] pub pure fn clamp<T:Extent>(x: &T, mn: &T, mx: &T) -> T { x.clamp(mn, mx) }
 
-pub impl u8: MinMax {
-    #[inline(always)] pure fn min(other: &u8) -> u8 { if self < *other { self } else { *other } }
+pub impl u8: Extent {
+    #[inline(always)]
+    pure fn min(other: &u8) -> u8 { if self < *other { self } else { *other } }
     #[inline(always)] pure fn max(other: &u8) -> u8 { if self > *other { self } else { *other } }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &u8, mx: &u8) -> u8 {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl u16: MinMax {
-    #[inline(always)] pure fn min(other: &u16) -> u16 { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &u16) -> u16 { if self > *other { self } else { *other } }
+pub impl u16: Extent {
+    #[inline(always)]
+    pure fn min(other: &u16) -> u16 {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &u16) -> u16 {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &u16, mx: &u16) -> u16 {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl u32: MinMax {
-    #[inline(always)] pure fn min(other: &u32) -> u32 { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &u32) -> u32 { if self > *other { self } else { *other } }
+pub impl u32: Extent {
+    #[inline(always)]
+    pure fn min(other: &u32) -> u32 {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &u32) -> u32 {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &u32, mx: &u32) -> u32 {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl u64: MinMax {
-    #[inline(always)] pure fn min(other: &u64) -> u64 { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &u64) -> u64 { if self > *other { self } else { *other } }
+pub impl u64: Extent {
+    #[inline(always)]
+    pure fn min(other: &u64) -> u64 {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &u64) -> u64 {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &u64, mx: &u64) -> u64 {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl uint: MinMax {
-    #[inline(always)] pure fn min(other: &uint) -> uint { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &uint) -> uint { if self > *other { self } else { *other } }
+pub impl uint: Extent {
+    #[inline(always)]
+    pure fn min(other: &uint) -> uint {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &uint) -> uint {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &uint, mx: &uint) -> uint {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl i8: MinMax {
-    #[inline(always)] pure fn min(other: &i8) -> i8 { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &i8) -> i8 { if self > *other { self } else { *other } }
+pub impl i8: Extent {
+    #[inline(always)]
+    pure fn min(other: &i8) -> i8 {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &i8) -> i8 {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &i8, mx: &i8) -> i8 {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl i16: MinMax {
-    #[inline(always)] pure fn min(other: &i16) -> i16 { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &i16) -> i16 { if self > *other { self } else { *other } }
+pub impl i16: Extent {
+    #[inline(always)]
+    pure fn min(other: &i16) -> i16 {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &i16) -> i16 {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &i16, mx: &i16) -> i16 {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl i32: MinMax {
-    #[inline(always)] pure fn min(other: &i32) -> i32 { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &i32) -> i32 { if self > *other { self } else { *other } }
+pub impl i32: Extent {
+    #[inline(always)]
+    pure fn min(other: &i32) -> i32 {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &i32) -> i32 {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &i32, mx: &i32) -> i32 {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl i64: MinMax {
-    #[inline(always)] pure fn min(other: &i64) -> i64 { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &i64) -> i64 { if self > *other { self } else { *other } }
+pub impl i64: Extent {
+    #[inline(always)]
+    pure fn min(other: &i64) -> i64 {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &i64) -> i64 {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &i64, mx: &i64) -> i64 {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl int: MinMax {
-    #[inline(always)] pure fn min(other: &int) -> int { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &int) -> int { if self > *other { self } else { *other } }
+pub impl int: Extent {
+    #[inline(always)]
+    pure fn min(other: &int) -> int {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &int) -> int {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &int, mx: &int) -> int {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl f32: MinMax {
-    #[inline(always)] pure fn min(other: &f32) -> f32 { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &f32) -> f32 { if self > *other { self } else { *other } }
+pub impl f32: Extent {
+    #[inline(always)]
+    pure fn min(other: &f32) -> f32 {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &f32) -> f32 {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &f32, mx: &f32) -> f32 {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl f64: MinMax {
-    #[inline(always)] pure fn min(other: &f64) -> f64 { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &f64) -> f64 { if self > *other { self } else { *other } }
+pub impl f64: Extent {
+    #[inline(always)]
+    pure fn min(other: &f64) -> f64 {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &f64) -> f64 {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &f64, mx: &f64) -> f64 {
+        min(&max(&self, mn), mx)
+    }
 }
 
-pub impl float: MinMax {
-    #[inline(always)] pure fn min(other: &float) -> float { if self < *other { self } else { *other } }
-    #[inline(always)] pure fn max(other: &float) -> float { if self > *other { self } else { *other } }
+pub impl float: Extent {
+    #[inline(always)]
+    pure fn min(other: &float) -> float {
+        if self < *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &float) -> float {
+        if self > *other { self } else { *other }
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &float, mx: &float) -> float {
+        min(&max(&self, mn), mx)
+    }
 }
 
 
-pub impl<T:Copy MinMax> Radians<T>: MinMax{
-    #[inline(always)] pure fn min(other: &Radians<T>) -> Radians<T> { Radians(min(&*self, &**other)) }
-    #[inline(always)] pure fn max(other: &Radians<T>) -> Radians<T> { Radians(max(&*self, &**other)) }
+pub impl<T:Copy Extent> Radians<T>: Extent{
+    #[inline(always)]
+    pure fn min(other: &Radians<T>) -> Radians<T> {
+        Radians(min(&*self, &**other))
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &Radians<T>) -> Radians<T> {
+        Radians(max(&*self, &**other))
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &Radians<T>, mx: &Radians<T>) -> Radians<T> {
+        Radians((*self).clamp(&**mn, &**mx))
+    }
 }
 
-pub impl<T:Copy MinMax> Degrees<T>: MinMax{
-    #[inline(always)] pure fn min(other: &Degrees<T>) -> Degrees<T> { Degrees(min(&*self, &**other)) }
-    #[inline(always)] pure fn max(other: &Degrees<T>) -> Degrees<T> { Degrees(max(&*self, &**other)) }
+pub impl<T:Copy Extent> Degrees<T>: Extent{
+    #[inline(always)]
+    pure fn min(other: &Degrees<T>) -> Degrees<T> {
+        Degrees(min(&*self, &**other))
+    }
+    
+    #[inline(always)]
+    pure fn max(other: &Degrees<T>) -> Degrees<T> {
+        Degrees(max(&*self, &**other))
+    }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &Degrees<T>, mx: &Degrees<T>) -> Degrees<T> {
+        Degrees((*self).clamp(&**mn, &**mx))
+    }
 }
 
 
-pub impl<T:Copy MinMax> Vec2<T>: MinMax {
+pub impl<T:Copy Extent> Vec2<T>: Extent {
     #[inline(always)]
     pure fn min(other: &Vec2<T>) -> Vec2<T> {
         Vec2::new(min(&self[0], &other[0]),
@@ -413,9 +589,15 @@ pub impl<T:Copy MinMax> Vec2<T>: MinMax {
         Vec2::new(max(&self[0], &other[0]),
                   max(&self[1], &other[1]))
     }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &Vec2<T>, mx: &Vec2<T>) -> Vec2<T> {
+        Vec2::new(self[0].clamp(&mn[0], &mx[0]),
+                  self[1].clamp(&mn[1], &mx[1]))
+    }
 }
 
-pub impl<T:Copy MinMax> Vec3<T>: MinMax {
+pub impl<T:Copy Extent> Vec3<T>: Extent {
     #[inline(always)]
     pure fn min(other: &Vec3<T>) -> Vec3<T> {
         Vec3::new(min(&self[0], &other[0]),
@@ -429,9 +611,16 @@ pub impl<T:Copy MinMax> Vec3<T>: MinMax {
                   max(&self[1], &other[1]),
                   max(&self[2], &other[2]))
     }
+    
+    #[inline(always)]
+    pure fn clamp(mn: &Vec3<T>, mx: &Vec3<T>) -> Vec3<T> {
+        Vec3::new(self[0].clamp(&mn[0], &mx[0]),
+                  self[1].clamp(&mn[1], &mx[1]),
+                  self[2].clamp(&mn[2], &mx[2]))
+    }
 }
 
-pub impl<T:Copy MinMax> Vec4<T>: MinMax {
+pub impl<T:Copy Extent> Vec4<T>: Extent {
     #[inline(always)]
     pure fn min(other: &Vec4<T>) -> Vec4<T> {
         Vec4::new(min(&self[0], &other[0]),
@@ -447,62 +636,7 @@ pub impl<T:Copy MinMax> Vec4<T>: MinMax {
                   max(&self[2], &other[2]),
                   max(&self[3], &other[3]))
     }
-}
-
-pub trait Clamp {
-    pure fn clamp(mn: &self, mx: &self) -> self;
-}
-
-#[inline(always)] pub pure fn clamp<T:Clamp>(x: &T, mn: &T, mx: &T) -> T { x.clamp(mn, mx) }
-
-pub impl u8:    Clamp { #[inline(always)] pure fn clamp(mn: &u8,    mx: &u8)    -> u8    { min(&max(&self, mn), mx) } }
-pub impl u16:   Clamp { #[inline(always)] pure fn clamp(mn: &u16,   mx: &u16)   -> u16   { min(&max(&self, mn), mx) } }
-pub impl u32:   Clamp { #[inline(always)] pure fn clamp(mn: &u32,   mx: &u32)   -> u32   { min(&max(&self, mn), mx) } }
-pub impl u64:   Clamp { #[inline(always)] pure fn clamp(mn: &u64,   mx: &u64)   -> u64   { min(&max(&self, mn), mx) } }
-pub impl uint:  Clamp { #[inline(always)] pure fn clamp(mn: &uint,  mx: &uint)  -> uint  { min(&max(&self, mn), mx) } }
-pub impl i8:    Clamp { #[inline(always)] pure fn clamp(mn: &i8,    mx: &i8)    -> i8    { min(&max(&self, mn), mx) } }
-pub impl i16:   Clamp { #[inline(always)] pure fn clamp(mn: &i16,   mx: &i16)   -> i16   { min(&max(&self, mn), mx) } }
-pub impl i32:   Clamp { #[inline(always)] pure fn clamp(mn: &i32,   mx: &i32)   -> i32   { min(&max(&self, mn), mx) } }
-pub impl i64:   Clamp { #[inline(always)] pure fn clamp(mn: &i64,   mx: &i64)   -> i64   { min(&max(&self, mn), mx) } }
-pub impl int:   Clamp { #[inline(always)] pure fn clamp(mn: &int,   mx: &int)   -> int   { min(&max(&self, mn), mx) } }
-pub impl f32:   Clamp { #[inline(always)] pure fn clamp(mn: &f32,   mx: &f32)   -> f32   { min(&max(&self, mn), mx) } }
-pub impl f64:   Clamp { #[inline(always)] pure fn clamp(mn: &f64,   mx: &f64)   -> f64   { min(&max(&self, mn), mx) } }
-pub impl float: Clamp { #[inline(always)] pure fn clamp(mn: &float, mx: &float) -> float { min(&max(&self, mn), mx) } }
-
-
-pub impl<T:Clamp> Radians<T>: Clamp {
-    #[inline(always)]
-    pure fn clamp(mn: &Radians<T>, mx: &Radians<T>) -> Radians<T> {
-        Radians((*self).clamp(&**mn, &**mx))
-    }
-}
-
-pub impl<T:Clamp> Degrees<T>: Clamp {
-    #[inline(always)]
-    pure fn clamp(mn: &Degrees<T>, mx: &Degrees<T>) -> Degrees<T> {
-        Degrees((*self).clamp(&**mn, &**mx))
-    }
-}
-
-
-pub impl<T:Copy Clamp> Vec2<T>: Clamp {
-    #[inline(always)]
-    pure fn clamp(mn: &Vec2<T>, mx: &Vec2<T>) -> Vec2<T> {
-        Vec2::new(self[0].clamp(&mn[0], &mx[0]),
-                  self[1].clamp(&mn[1], &mx[1]))
-    }
-}
-
-pub impl<T:Copy Clamp> Vec3<T>: Clamp {
-    #[inline(always)]
-    pure fn clamp(mn: &Vec3<T>, mx: &Vec3<T>) -> Vec3<T> {
-        Vec3::new(self[0].clamp(&mn[0], &mx[0]),
-                  self[1].clamp(&mn[1], &mx[1]),
-                  self[2].clamp(&mn[2], &mx[2]))
-    }
-}
-
-pub impl<T:Copy Clamp> Vec4<T>: Clamp {
+    
     #[inline(always)]
     pure fn clamp(mn: &Vec4<T>, mx: &Vec4<T>) -> Vec4<T> {
         Vec4::new(self[0].clamp(&mn[0], &mx[0]),
@@ -512,6 +646,7 @@ pub impl<T:Copy Clamp> Vec4<T>: Clamp {
     }
 }
 
+
 pub trait Mix {
     pure fn mix(other: &self, value: &self) -> self;
     pure fn smooth_step(edge0: &self, edge1: &self) -> self;
diff --git a/src/quat.rs b/src/quat.rs
index 500d98c..b6c385a 100644
--- a/src/quat.rs
+++ b/src/quat.rs
@@ -70,7 +70,7 @@ pub impl<T> Quat<T> {
     }
 }
 
-pub impl<T:Copy Num NumCast Exp Clamp Ord InvTrig> Quat<T>: Quaternion<T> {
+pub impl<T:Copy Num NumCast Exp Extent Ord InvTrig> Quat<T>: Quaternion<T> {
     #[inline(always)]
     static pure fn identity() -> Quat<T> {
         Quat::new(NumCast::one(),