GLfloat zoomFactor = 0.2, camRotateFactor = 0.5, camAngleFactor = 0.5;
GLfloat leftrightFactor = 0.05, nearfarFactor = 0.1, bigsmallFactor = 0.6;
GLfloat updownFactor = 0.03, rotateFactor = 0.8, texscaleFactor = 0.2;
-GLfloat lleftrightFactor = 0.005, lnearfarFactor = 0.05;
+GLfloat lleftrightFactor = 0.05, lnearfarFactor = 0.1;
/* Beginning width, height */
int width = 700, height = 700;