bottom = -top;
left = bottom * aspect;
right = top * aspect;
if (zNear <= 0.0 || zFar <= 0.0 || zNear == zFar || left == right
|| top == bottom)
throw new N3InvalidCameraValuesException("Invalid Values: zNear="
+ zNear + " zFar=" + zFar + " left=" + left + " right="
+ right + " top=" + top + " bottom=" + bottom);
notifyCameras();
}