I have to write corresponding code for LOD node of VRML in openGL. LOD { } The following fields are defined: level specifies the set of alternative representations of a graphical object center specifies a 3D point to which the distance is computed. range specifies a set of distances level [] center 0 0 0 range [] Are there any openGL APIs for this? The output should be same as that of VRML LOD node . The corresponding code has to be written in C using openGL APIs> I wanted to know whether there r any APIs related to it? regards, Renisha