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enum {
/* Normal vectors */
GLU_SMOOTH = 100000,
GLU_FLAT = 100001,
GLU_NONE = 100002,
/* Quadric draw styles */
GLU_POINT = 100010,
GLU_LINE = 100011,
GLU_FILL = 100012,
GLU_SILHOUETTE = 100013,
/* Quadric orientation */
GLU_OUTSIDE = 100020,
GLU_INSIDE = 100021,
/* Tessellator */
GLU_TESS_BEGIN = 100100,
GLU_TESS_VERTEX = 100101,
GLU_TESS_END = 100102,
GLU_TESS_ERROR = 100103,
GLU_TESS_EDGE_FLAG = 100104,
GLU_TESS_COMBINE = 100105,
GLU_TESS_BEGIN_DATA = 100106,
GLU_TESS_VERTEX_DATA = 100107,
GLU_TESS_END_DATA = 100108,
GLU_TESS_ERROR_DATA = 100109,
GLU_TESS_EDGE_FLAG_DATA = 100110,
GLU_TESS_COMBINE_DATA = 100111,
/* Winding rules */
GLU_TESS_WINDING_ODD = 100130,
GLU_TESS_WINDING_NONZERO = 100131,
GLU_TESS_WINDING_POSITIVE = 100132,
GLU_TESS_WINDING_NEGATIVE = 100133,
GLU_TESS_WINDING_ABS_GEQ_TWO = 100134,
/* Tessellation properties */
GLU_TESS_WINDING_RULE = 100140,
GLU_TESS_BOUNDARY_ONLY = 100141,
GLU_TESS_TOLERANCE = 100142,
/* Tessellation errors */
GLU_TESS_ERROR1 = 100151, /* Missing gluBeginPolygon */
GLU_TESS_ERROR2 = 100152, /* Missing gluBeginContour */
GLU_TESS_ERROR3 = 100153, /* Missing gluEndPolygon */
GLU_TESS_ERROR4 = 100154, /* Missing gluEndContour */
GLU_TESS_ERROR5 = 100155, /* */
GLU_TESS_ERROR6 = 100156, /* */
GLU_TESS_ERROR7 = 100157, /* */
GLU_TESS_ERROR8 = 100158, /* */
/* NURBS */
GLU_AUTO_LOAD_MATRIX = 100200,
GLU_CULLING = 100201,
GLU_PARAMETRIC_TOLERANCE = 100202,
GLU_SAMPLING_TOLERANCE = 100203,
GLU_DISPLAY_MODE = 100204,
GLU_SAMPLING_METHOD = 100205,
GLU_U_STEP = 100206,
GLU_V_STEP = 100207,
GLU_PATH_LENGTH = 100215,
GLU_PARAMETRIC_ERROR = 100216,
GLU_DOMAIN_DISTANCE = 100217,
GLU_MAP1_TRIM_2 = 100210,
GLU_MAP1_TRIM_3 = 100211,
GLU_OUTLINE_POLYGON = 100240,
GLU_OUTLINE_PATCH = 100241,
GLU_NURBS_ERROR1 = 100251, /* spline order un-supported */
GLU_NURBS_ERROR2 = 100252, /* too few knots */
GLU_NURBS_ERROR3 = 100253, /* valid knot range is empty */
GLU_NURBS_ERROR4 = 100254, /* decreasing knot sequence */
GLU_NURBS_ERROR5 = 100255, /* knot multiplicity > spline order */
GLU_NURBS_ERROR6 = 100256, /* endcurve() must follow bgncurve() */
GLU_NURBS_ERROR7 = 100257, /* bgncurve() must precede endcurve() */
GLU_NURBS_ERROR8 = 100258, /* ctrlarray or knot vector is NULL */
GLU_NURBS_ERROR9 = 100259, /* can't draw pwlcurves */
GLU_NURBS_ERROR10 = 100260, /* missing gluNurbsCurve() */
GLU_NURBS_ERROR11 = 100261, /* missing gluNurbsSurface() */
GLU_NURBS_ERROR12 = 100262, /* endtrim() must precede endsurface() */
GLU_NURBS_ERROR13 = 100263, /* bgnsurface() must precede endsurface() */
GLU_NURBS_ERROR14 = 100264, /* curve of improper type passed as trim curve */
GLU_NURBS_ERROR15 = 100265, /* bgnsurface() must precede bgntrim() */
GLU_NURBS_ERROR16 = 100266, /* endtrim() must follow bgntrim() */
GLU_NURBS_ERROR17 = 100267, /* bgntrim() must precede endtrim() */
GLU_NURBS_ERROR18 = 100268, /* invalid or missing trim curve */
GLU_NURBS_ERROR19 = 100269, /* bgntrim() must precede pwlcurve() */
GLU_NURBS_ERROR20 = 100270, /* pwlcurve referenced twice */
GLU_NURBS_ERROR21 = 100271, /* pwlcurve and nurbscurve mixed */
GLU_NURBS_ERROR22 = 100272, /* improper usage of trim data type */
GLU_NURBS_ERROR23 = 100273, /* nurbscurve referenced twice */
GLU_NURBS_ERROR24 = 100274, /* nurbscurve and pwlcurve mixed */
GLU_NURBS_ERROR25 = 100275, /* nurbssurface referenced twice */
GLU_NURBS_ERROR26 = 100276, /* invalid property */
GLU_NURBS_ERROR27 = 100277, /* endsurface() must follow bgnsurface() */
GLU_NURBS_ERROR28 = 100278, /* intersecting or misoriented trim curves */
GLU_NURBS_ERROR29 = 100279, /* intersecting trim curves */
GLU_NURBS_ERROR30 = 100280, /* UNUSED */
GLU_NURBS_ERROR31 = 100281, /* unconnected trim curves */
GLU_NURBS_ERROR32 = 100282, /* unknown knot error */
GLU_NURBS_ERROR33 = 100283, /* negative vertex count encountered */
GLU_NURBS_ERROR34 = 100284, /* negative byte-stride */
GLU_NURBS_ERROR35 = 100285, /* unknown type descriptor */
GLU_NURBS_ERROR36 = 100286, /* null control point reference */
GLU_NURBS_ERROR37 = 100287, /* duplicate point on pwlcurve */
/* Errors */
GLU_INVALID_ENUM = 100900,
GLU_INVALID_VALUE = 100901,
GLU_OUT_OF_MEMORY = 100902,
GLU_INCOMPATIBLE_GL_VERSION = 100903,
/* New in GLU 1.1 */
GLU_VERSION = 100800,
GLU_EXTENSIONS = 100801,
/* ** GLU 1.0 tessellation - obsolete! ** */
/* Contour types */
GLU_CW = 100120,
GLU_CCW = 100121,
GLU_INTERIOR = 100122,
GLU_EXTERIOR = 100123,
GLU_UNKNOWN = 100124,
/* Tessellator */
GLU_BEGIN = GLU_TESS_BEGIN,
GLU_VERTEX = GLU_TESS_VERTEX,
GLU_END = GLU_TESS_END,
GLU_ERROR = GLU_TESS_ERROR,
GLU_EDGE_FLAG = GLU_TESS_EDGE_FLAG
};
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