diff --git a/parser/nodes.h b/parser/nodes.h
index 0abcfce..fe3b634 100644
--- a/parser/nodes.h
+++ b/parser/nodes.h
@@ -84,35 +84,24 @@ class VectorNode : public Node
 {
     public:
         VectorNode(refptr<Node> a, refptr<Node> b, refptr<Node> c)
+            : m_a(a), m_b(b), m_c(c), m_direct(true)
         {
-            addChild(a);
-            addChild(b);
-            addChild(c);
         }
         VectorNode(refptr<Node> node)
+            : m_a(node), m_direct(false)
         {
-            addChild(node);
         }
         refptr<Vector> getVector()
         {
-            if (m_children.size() == 1)
-            {
-                return m_children[0]->getVector();
-            }
-            else if (m_children.size() == 3)
-            {
-                return new Vector(
-                        m_children[0]->getNumber(),
-                        m_children[1]->getNumber(),
-                        m_children[2]->getNumber());
-            }
-            else
-            {
-                std::cerr << "Warning: VectorNode::getVector() returning NULL!"
-                    << std::endl;
-                return NULL;
-            }
+            return m_direct
+                ? new Vector(m_a->getNumber(),
+                        m_b->getNumber(),
+                        m_c->getNumber())
+                : m_a->getVector();
         }
+    protected:
+        refptr<Node> m_a, m_b, m_c;
+        bool m_direct;
 };
 
 class AmbientNode : public VectorNode
@@ -199,6 +188,7 @@ class JitterNode : public NumberNode
 {
     public:
         JitterNode(refptr<Node> e) : NumberNode(e) {}
+        int getInteger() { return getNumber(); }
 };
 
 class LightNode : public Node