GL_NV_evaluators
http://oss.sgi.com/projects/ogl-sample/registry/NV/evaluators.txt
	GL_EVAL_2D_NV 0x86C0
	GL_EVAL_TRIANGULAR_2D_NV 0x86C1
	GL_MAP_TESSELLATION_NV 0x86C2
	GL_MAP_ATTRIB_U_ORDER_NV 0x86C3
	GL_MAP_ATTRIB_V_ORDER_NV 0x86C4
	GL_EVAL_FRACTIONAL_TESSELLATION_NV 0x86C5
	GL_EVAL_VERTEX_ATTRIB0_NV 0x86C6
	GL_EVAL_VERTEX_ATTRIB1_NV 0x86C7
	GL_EVAL_VERTEX_ATTRIB2_NV 0x86C8
	GL_EVAL_VERTEX_ATTRIB3_NV 0x86C9
	GL_EVAL_VERTEX_ATTRIB4_NV 0x86CA
	GL_EVAL_VERTEX_ATTRIB5_NV 0x86CB
	GL_EVAL_VERTEX_ATTRIB6_NV 0x86CC
	GL_EVAL_VERTEX_ATTRIB7_NV 0x86CD
	GL_EVAL_VERTEX_ATTRIB8_NV 0x86CE
	GL_EVAL_VERTEX_ATTRIB9_NV 0x86CF
	GL_EVAL_VERTEX_ATTRIB10_NV 0x86D0
	GL_EVAL_VERTEX_ATTRIB11_NV 0x86D1
	GL_EVAL_VERTEX_ATTRIB12_NV 0x86D2
	GL_EVAL_VERTEX_ATTRIB13_NV 0x86D3
	GL_EVAL_VERTEX_ATTRIB14_NV 0x86D4
	GL_EVAL_VERTEX_ATTRIB15_NV 0x86D5
	GL_MAX_MAP_TESSELLATION_NV 0x86D6
	GL_MAX_RATIONAL_EVAL_ORDER_NV 0x86D7
	void glEvalMapsNV (GLenum target, GLenum mode)
	void glGetMapAttribParameterfvNV (GLenum target, GLuint index, GLenum pname, GLfloat* params)
	void glGetMapAttribParameterivNV (GLenum target, GLuint index, GLenum pname, GLint* params)
	void glGetMapControlPointsNV (GLenum target, GLuint index, GLenum type, GLsizei ustride, GLsizei vstride, GLboolean packed, void* points)
	void glGetMapParameterfvNV (GLenum target, GLenum pname, GLfloat* params)
	void glGetMapParameterivNV (GLenum target, GLenum pname, GLint* params)
	void glMapControlPointsNV (GLenum target, GLuint index, GLenum type, GLsizei ustride, GLsizei vstride, GLint uorder, GLint vorder, GLboolean packed, const void* points)
	void glMapParameterfvNV (GLenum target, GLenum pname, const GLfloat* params)
	void glMapParameterivNV (GLenum target, GLenum pname, const GLint* params)