1GL_PGI_vertex_hints 2http://oss.sgi.com/projects/ogl-sample/registry/PGI/vertex_hints.txt 3 GL_VERTEX23_BIT_PGI 0x00000004 4 GL_VERTEX4_BIT_PGI 0x00000008 5 GL_COLOR3_BIT_PGI 0x00010000 6 GL_COLOR4_BIT_PGI 0x00020000 7 GL_EDGEFLAG_BIT_PGI 0x00040000 8 GL_INDEX_BIT_PGI 0x00080000 9 GL_MAT_AMBIENT_BIT_PGI 0x00100000 10 GL_VERTEX_DATA_HINT_PGI 107050 11 GL_VERTEX_CONSISTENT_HINT_PGI 107051 12 GL_MATERIAL_SIDE_HINT_PGI 107052 13 GL_MAX_VERTEX_HINT_PGI 107053 14 GL_MAT_AMBIENT_AND_DIFFUSE_BIT_PGI 0x00200000 15 GL_MAT_DIFFUSE_BIT_PGI 0x00400000 16 GL_MAT_EMISSION_BIT_PGI 0x00800000 17 GL_MAT_COLOR_INDEXES_BIT_PGI 0x01000000 18 GL_MAT_SHININESS_BIT_PGI 0x02000000 19 GL_MAT_SPECULAR_BIT_PGI 0x04000000 20 GL_NORMAL_BIT_PGI 0x08000000 21 GL_TEXCOORD1_BIT_PGI 0x10000000 22 GL_TEXCOORD2_BIT_PGI 0x20000000 23 GL_TEXCOORD3_BIT_PGI 0x40000000 24 GL_TEXCOORD4_BIT_PGI 0x80000000 25