diff --git a/include/zeus/CMatrix4f.hpp b/include/zeus/CMatrix4f.hpp
index c674ecd..fe98579 100644
--- a/include/zeus/CMatrix4f.hpp
+++ b/include/zeus/CMatrix4f.hpp
@@ -117,6 +117,13 @@ public:
         return xfVec.toVec3f() / xfVec.w;
     }
 
+    inline CVector3f multiplyOneOverW(const CVector3f& point, float& wOut) const
+    {
+        CVector4f xfVec = *this * point;
+        wOut = xfVec.w;
+        return xfVec.toVec3f() / xfVec.w;
+    }
+
     union {
         float m[4][4];
         struct
diff --git a/include/zeus/CVector4f.hpp b/include/zeus/CVector4f.hpp
index ff9a957..6814739 100644
--- a/include/zeus/CVector4f.hpp
+++ b/include/zeus/CVector4f.hpp
@@ -89,6 +89,13 @@ public:
         w = 1.0f;
     }
 
+    static CVector4f ToClip(const zeus::CVector3f& v, float w)
+    {
+        CVector4f ret(v * w);
+        ret.w = w;
+        return ret;
+    }
+
     inline CVector3f toVec3f() const
     {
 #if __SSE__