GL_ARB_vertex_blend
http://oss.sgi.com/projects/ogl-sample/registry/ARB/vertex_blend.txt
	GL_MAX_VERTEX_UNITS_ARB 0x86A4
	GL_ACTIVE_VERTEX_UNITS_ARB 0x86A5
	GL_WEIGHT_SUM_UNITY_ARB 0x86A6
	GL_VERTEX_BLEND_ARB 0x86A7
	GL_CURRENT_WEIGHT_ARB 0x86A8
	GL_WEIGHT_ARRAY_TYPE_ARB 0x86A9
	GL_WEIGHT_ARRAY_STRIDE_ARB 0x86AA
	GL_WEIGHT_ARRAY_SIZE_ARB 0x86AB
	GL_WEIGHT_ARRAY_POINTER_ARB 0x86AC
	GL_WEIGHT_ARRAY_ARB 0x86AD
	GL_MODELVIEW0_ARB 0x1700
	GL_MODELVIEW1_ARB 0x850A
	GL_MODELVIEW2_ARB 0x8722
	GL_MODELVIEW3_ARB 0x8723
	GL_MODELVIEW4_ARB 0x8724
	GL_MODELVIEW5_ARB 0x8725
	GL_MODELVIEW6_ARB 0x8726
	GL_MODELVIEW7_ARB 0x8727
	GL_MODELVIEW8_ARB 0x8728
	GL_MODELVIEW9_ARB 0x8729
	GL_MODELVIEW10_ARB 0x872A
	GL_MODELVIEW11_ARB 0x872B
	GL_MODELVIEW12_ARB 0x872C
	GL_MODELVIEW13_ARB 0x872D
	GL_MODELVIEW14_ARB 0x872E
	GL_MODELVIEW15_ARB 0x872F
	GL_MODELVIEW16_ARB 0x8730
	GL_MODELVIEW17_ARB 0x8731
	GL_MODELVIEW18_ARB 0x8732
	GL_MODELVIEW19_ARB 0x8733
	GL_MODELVIEW20_ARB 0x8734
	GL_MODELVIEW21_ARB 0x8735
	GL_MODELVIEW22_ARB 0x8736
	GL_MODELVIEW23_ARB 0x8737
	GL_MODELVIEW24_ARB 0x8738
	GL_MODELVIEW25_ARB 0x8739
	GL_MODELVIEW26_ARB 0x873A
	GL_MODELVIEW27_ARB 0x873B
	GL_MODELVIEW28_ARB 0x873C
	GL_MODELVIEW29_ARB 0x873D
	GL_MODELVIEW30_ARB 0x873E
	GL_MODELVIEW31_ARB 0x873F
	void glWeightbvARB (GLint size, GLbyte *weights)
	void glWeightsvARB (GLint size, GLshort *weights)
	void glWeightivARB (GLint size, GLint *weights)
	void glWeightfvARB (GLint size, GLfloat *weights)
	void glWeightdvARB (GLint size, GLdouble *weights)
	void glWeightubvARB (GLint size, GLubyte *weights)
	void glWeightusvARB (GLint size, GLushort *weights)
	void glWeightuivARB (GLint size, GLuint *weights)
	void glWeightPointerARB (GLint size, GLenum type, GLsizei stride, GLvoid *pointer)
	void glVertexBlendARB (GLint count)