const int GLUP_CLIP_STANDARD         = 0;
const int GLUP_CLIP_WHOLE_CELLS      = 1;
const int GLUP_CLIP_STRADDLING_CELLS = 2;
const int GLUP_CLIP_SLICE_CELLS      = 3;

const int GLUP_TEXTURE_1D = 1;
const int GLUP_TEXTURE_2D = 2;
const int GLUP_TEXTURE_3D = 3;

const int GLUP_TEXTURE_REPLACE  = 0;
const int GLUP_TEXTURE_MODULATE = 1;
const int GLUP_TEXTURE_ADD      = 2;

const int GLUP_PICK_PRIMITIVE   = 1;
const int GLUP_PICK_CONSTANT    = 2;

const int GLUP_POINTS      =0;
const int GLUP_LINES       =1;
const int GLUP_TRIANGLES   =2;
const int GLUP_QUADS       =3;
const int GLUP_TETRAHEDRA  =4;
const int GLUP_HEXAHEDRA   =5;
const int GLUP_PRISMS      =6;
const int GLUP_PYRAMIDS    =7;
const int GLUP_CONNECTORS  =8;
const int GLUP_SPHERES     =9;
const int GLUP_THICK_LINES =10;

const int GLUP_LIGHTING            =0;
const int GLUP_VERTEX_COLORS       =1;
const int GLUP_TEXTURING           =2;
const int GLUP_DRAW_MESH           =3;
const int GLUP_CLIPPING            =4;
const int GLUP_INDIRECT_TEXTURING  =5;
const int GLUP_VERTEX_NORMALS      =6;
const int GLUP_PICKING             =7;
const int GLUP_ALPHA_DISCARD       =8;
const int GLUP_NORMAL_MAPPING      =9;
const int GLUP_PRIMITIVE_FILTERING =10;
