In theory they should not be although it depends on how the pixels are formatted e.g. how the bits correspond to colours RGBA ect.
Other than that it could be something to do with the calculations, e.g. a rouding error of some kind.
To really check you would have to build and run both versions for a cycle with a full debug printout and compare the values!
Other than that it could be something to do with the calculations, e.g. a rouding error of some kind.
To really check you would have to build and run both versions for a cycle with a full debug printout and compare the values!