1GL_EXT_vertex_attrib_64bit
2http://www.opengl.org/registry/specs/EXT/vertex_attrib_64bit.txt
3GL_EXT_vertex_attrib_64bit
4	GL_DOUBLE_MAT2_EXT 0x8F46
5	GL_DOUBLE_MAT3_EXT 0x8F47
6	GL_DOUBLE_MAT4_EXT 0x8F48
7	GL_DOUBLE_MAT2x3_EXT 0x8F49
8	GL_DOUBLE_MAT2x4_EXT 0x8F4A
9	GL_DOUBLE_MAT3x2_EXT 0x8F4B
10	GL_DOUBLE_MAT3x4_EXT 0x8F4C
11	GL_DOUBLE_MAT4x2_EXT 0x8F4D
12	GL_DOUBLE_MAT4x3_EXT 0x8F4E
13	GL_DOUBLE_VEC2_EXT 0x8FFC
14	GL_DOUBLE_VEC3_EXT 0x8FFD
15	GL_DOUBLE_VEC4_EXT 0x8FFE
16	void glGetVertexAttribLdvEXT (GLuint index, GLenum pname, GLdouble* params)
17	void glVertexArrayVertexAttribLOffsetEXT (GLuint vaobj, GLuint buffer, GLuint index, GLint size, GLenum type, GLsizei stride, GLintptr offset)
18	void glVertexAttribL1dEXT (GLuint index, GLdouble x)
19	void glVertexAttribL1dvEXT (GLuint index, const GLdouble* v)
20	void glVertexAttribL2dEXT (GLuint index, GLdouble x, GLdouble y)
21	void glVertexAttribL2dvEXT (GLuint index, const GLdouble* v)
22	void glVertexAttribL3dEXT (GLuint index, GLdouble x, GLdouble y, GLdouble z)
23	void glVertexAttribL3dvEXT (GLuint index, const GLdouble* v)
24	void glVertexAttribL4dEXT (GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w)
25	void glVertexAttribL4dvEXT (GLuint index, const GLdouble* v)
26	void glVertexAttribLPointerEXT (GLuint index, GLint size, GLenum type, GLsizei stride, const void* pointer)
27