Cleaned example.ez80

example.ez80

@@ -4,8 +4,6 @@
 .db tExtTok, tAsm84CeCmp
 .assume ADL=1
 
-#define	DELTA	4096
-
 ; init the virtual 3d library
 	call	vxEngineInit
 	ret	c		; quit if error at init
@@ -28,9 +26,12 @@
 	ld	de, $D30000-2
 	call	vxZX7Uncompress		; uncompress the texture generated by convpng
 
-
 ; setup global variable for rendering, euler angle and the translation of WorldMatrix
 
+; about translation : the format inputed in glib is pure integer 16 bits coordinates. On blender the conversion is made like this : 1.0=256
+; translation are added post transformation. So they carry the multiplication with the matrice, which aren't divided by the fixed point value of 1.0 (the matrix equivalent or 64). To have a translation of 1.0 in worldview matrix, the translation need to be 256*64 = 16384.
+; However, there is two type of matrix in glib : the model matrix, which is in MODELSPACE and the world type matrix in WORLDSPACE. Modelspace matrix have only a 16 bits translation and doesn't have the 64 factor described previously.
+
 	ld	hl, 0
 	ld	(EulerAngle), hl
 	ld	hl, WorldMatrix