(6.3.1) I guess values of offset value is not correct at some point

[Ahmed Gamal Okka]

when adding values of the data T.type float to the offset
in line 2
offset starts with value of 0
then add 8 for float x (offset = 8)
then add 8 for float y (offset = 16)
I guess offset values ends with 16 not 8 at this point