Quote:
Originally Posted by Hebe Vollmaus
As an example open unmoded SH3v14 NBB_Bismark.zon in S3D.
Change first found Box ArmorLevel from -1,00003 to something else.
Change it back to -1,00003.
Save As file maybe as NBB_Bismark.zon1.zon right next to the original.
Compare both files HEX-values of the ArmorLevel in a HEX-Editor.
The representation has been changed! Original is FF 00 80 BF; the new is FC 00 80 BF.
Hint: S3D will change Positions somewhat, so the found Position in the new saved file is different.
Why is that? Is S3D broken? -- No!
It must have been to do with the Nature of Floating-Point-Arithmetic.
Think of the number Pi, there will never be an exact representation. When you press such a number into only four HEX-bytes, which represents so called System-Single or only Single (as of Single-Precision), or MS calls it Float, it can only be presented by rounding.
So there is some more Hex-values means the same, it depends from the calculation-method you use.
j2c
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Thanks for your information
