extern GLfloat zoomFactor, camRotateFactor, camAngleFactor;
extern GLfloat leftrightFactor, nearfarFactor, bigsmallFactor;
extern GLfloat updownFactor, rotateFactor, texscaleFactor;
+extern GLfloat lleftrightFactor, lnearfarFactor;
/* Texture state tracking */
extern int currentGroundTexture, currentMeshTexture;