diff --git a/include/gp/math.hpp b/include/gp/math.hpp
index 497cd93..93af11a 100644
--- a/include/gp/math.hpp
+++ b/include/gp/math.hpp
@@ -109,6 +109,16 @@ namespace gp {
 		T y;
 		T z;
 
+		T& r(){
+			return x;
+		}
+		T& g(){
+			return y;
+		}
+		T& b(){
+			return z;
+		}
+
 		vec3_g() 
 		: x{}
 		, y{}
@@ -174,6 +184,19 @@ namespace gp {
 		T z;
 		T w;
 
+		T& r(){
+			return x;
+		}
+		T& g(){
+			return y;
+		}
+		T& b(){
+			return z;
+		}
+		T& a(){
+			return w;
+		}
+
 		vec4_g() 
 		: x{}
 		, y{}
@@ -268,4 +291,7 @@ namespace gp {
 	vec4_g<T> operator*(T v, vec4_g<T> p) {
 		return p*v;
 	}
-}
\ No newline at end of file
+}
+
+static_assert(sizeof(gp::vec3_g<int>) == sizeof(int)*3, "vec3_g has strange alignment");
+static_assert(sizeof(gp::vec4_g<int>) == sizeof(int)*4, "vec4_g has strange alignment");
\ No newline at end of file