GL_NV_transform_feedback
http://developer.download.nvidia.com/opengl/specs/GL_NV_transform_feedback.txt
	GL_BACK_PRIMARY_COLOR_NV 0x8C77
	GL_BACK_SECONDARY_COLOR_NV 0x8C78
	GL_TEXTURE_COORD_NV 0x8C79
	GL_CLIP_DISTANCE_NV 0x8C7A
	GL_VERTEX_ID_NV 0x8C7B
	GL_PRIMITIVE_ID_NV 0x8C7C
	GL_GENERIC_ATTRIB_NV 0x8C7D
	GL_TRANSFORM_FEEDBACK_ATTRIBS_NV 0x8C7E
	GL_TRANSFORM_FEEDBACK_BUFFER_MODE_NV 0x8C7F
	GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_NV 0x8C80
	GL_ACTIVE_VARYINGS_NV 0x8C81
	GL_ACTIVE_VARYING_MAX_LENGTH_NV 0x8C82
	GL_TRANSFORM_FEEDBACK_VARYINGS_NV 0x8C83
	GL_TRANSFORM_FEEDBACK_BUFFER_START_NV 0x8C84
	GL_TRANSFORM_FEEDBACK_BUFFER_SIZE_NV 0x8C85
	GL_TRANSFORM_FEEDBACK_RECORD_NV 0x8C86
	GL_PRIMITIVES_GENERATED_NV 0x8C87
	GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_NV 0x8C88
	GL_RASTERIZER_DISCARD_NV 0x8C89
	GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_NV 0x8C8A
	GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_NV 0x8C8B
	GL_INTERLEAVED_ATTRIBS_NV 0x8C8C
	GL_SEPARATE_ATTRIBS_NV 0x8C8D
	GL_TRANSFORM_FEEDBACK_BUFFER_NV 0x8C8E
	GL_TRANSFORM_FEEDBACK_BUFFER_BINDING_NV 0x8C8F
	void glBeginTransformFeedbackNV (GLenum primitiveMode)
	void glEndTransformFeedbackNV (void)
	void glTransformFeedbackAttribsNV (GLuint count, const GLint *attribs, GLenum bufferMode)
	void glBindBufferRangeNV (GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size)
	void glBindBufferOffsetNV (GLenum target, GLuint index, GLuint buffer, GLintptr offset)
	void glBindBufferBaseNV (GLenum target, GLuint index, GLuint buffer)
	void glTransformFeedbackVaryingsNV (GLuint program, GLsizei count, const GLint *locations, GLenum bufferMode)
	void glActiveVaryingNV (GLuint program, const GLchar *name)
	GLint glGetVaryingLocationNV (GLuint program, const GLchar *name)
	void glGetActiveVaryingNV (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLsizei *size, GLenum *type, GLchar *name)
	void glGetTransformFeedbackVaryingNV (GLuint program, GLuint index, GLint *location)
