Data Fields
T_sword32	a

T_word16	angle

T_sword32	Bx

T_sword32	By

T_sword32	Bz

T_sword32	c

T_sword32	d

T_sword32	e

T_sword32	eprime

T_sword32	f

T_sword32	fromZ

T_sword32	g

T_sword32	i

T_sword32	interX

T_sword32	interZ

T_sword16	offX

T_sword16	offY

T_byte8	opaque

T_byte8 *	p_texture

T_byte8 *	p_texture2

T_byte8	reserved [3]

T_word16	sector

T_word16	sectorBack

T_word16	shadeIndex

T_byte8 *	textureCeiling

T_byte8 *	textureFloor

T_byte8	transFlag

T_byte8	type

T_sword32	Vx

T_sword32	Vz

T_sword32	zTop