GLfloat leftrightFactor = 0.5, nearfarFactor = 0.5, bigsmallFactor = 0.6, updownFactor = 0.03, rotateFactor = 0.8, texscaleFactor = 0.05;
/* Beginning width, height */
GLfloat leftrightFactor = 0.5, nearfarFactor = 0.5, bigsmallFactor = 0.6, updownFactor = 0.03, rotateFactor = 0.8, texscaleFactor = 0.05;
/* Beginning width, height */