public void move(float dx, float dy){
		elevation -= dy*0.005;
		azimuth   -= dx*0.005;
		if(elevation > Math.PI/2 -0.01) elevation = (float)( Math.PI/2 -0.01);
		if(elevation <-Math.PI/2 +0.01) elevation = (float)(-Math.PI/2 +0.01);
		if(azimuth > Math.PI) azimuth -= 2*Math.PI;
		if(azimuth <-Math.PI) azimuth += 2*Math.PI;
		cameraReset();
	}