1GL_PGI_vertex_hints
2https://www.khronos.org/registry/OpenGL/extensions/PGI/PGI_vertex_hints.txt
3GL_PGI_vertex_hints
4
5	GL_VERTEX23_BIT_PGI 0x00000004
6	GL_VERTEX4_BIT_PGI 0x00000008
7	GL_COLOR3_BIT_PGI 0x00010000
8	GL_COLOR4_BIT_PGI 0x00020000
9	GL_EDGEFLAG_BIT_PGI 0x00040000
10	GL_INDEX_BIT_PGI 0x00080000
11	GL_MAT_AMBIENT_BIT_PGI 0x00100000
12	GL_VERTEX_DATA_HINT_PGI 107050
13	GL_VERTEX_CONSISTENT_HINT_PGI 107051
14	GL_MATERIAL_SIDE_HINT_PGI 107052
15	GL_MAX_VERTEX_HINT_PGI 107053
16	GL_MAT_AMBIENT_AND_DIFFUSE_BIT_PGI 0x00200000
17	GL_MAT_DIFFUSE_BIT_PGI 0x00400000
18	GL_MAT_EMISSION_BIT_PGI 0x00800000
19	GL_MAT_COLOR_INDEXES_BIT_PGI 0x01000000
20	GL_MAT_SHININESS_BIT_PGI 0x02000000
21	GL_MAT_SPECULAR_BIT_PGI 0x04000000
22	GL_NORMAL_BIT_PGI 0x08000000
23	GL_TEXCOORD1_BIT_PGI 0x10000000
24	GL_TEXCOORD2_BIT_PGI 0x20000000
25	GL_TEXCOORD3_BIT_PGI 0x40000000
26	GL_TEXCOORD4_BIT_PGI 0x80000000
27