+extern GLfloat emission[];
+
+/* Beginning width, height */
+extern int width, height;
+
+/* Zoom and rotate tracking */
+extern GLfloat zoom, rotate, camAngle;
+extern GLfloat zoomFactor, camRotateFactor, camAngleFactor;
+extern GLfloat leftrightFactor, nearfarFactor, bigsmallFactor, updownFactor, rotateFactor, texscaleFactor;