working on intersection

Triangle.js

@@ -1,3 +1,14 @@
-function Triangle(point1, point2, point3){
-
+
+//basic triangular building block.  takes in 
+//vector3 objects as the vertices
+function Triangle(point1In, point2In, point3In){
+	this.point1 = point1In;
+	this.point2 = point2In;
+	this.point3 = point3In;
+
+	this.uVector = vector3Subtract(point2In, point1In);
+	this.vVector = vector3Subtract(point3In, point1In);
+
+	this.normalVector = vector3CrossProduct(uVector, vVector).normalize();
+
 }