In article <MDBBJLBFBICIIEIHFBMECEMIDEAA.hallane@earthlink.net>, "Hal Lane" <hallane@earthlink.net> writes:
Is it likely that I did this comparison and analysis incorrectly, or is this difference between integer and float expected? <---<<
I thought it was well known that you can get different results from float and integer renderings of the same fractal. First of all, there is the precision issue. To understand whether or not fractint's integer math is sufficient, you have to analyze the entire computation and see what happens to the significant digits. Its more than just analyzing the formula, you have to look at the code. I don't know of anyone that's done this, except possibly the original coder of the integer version. Second, there is the issue of duplicate code -- you can easily have a bug in the integer version that's not present in the float version. Third, I wouldn't get so hung up on minor differences in rendering. (A blatantly buggy rendering is a different matter.) All fractal renderings are inherently approximations. There is no "true" rendering of a fractal, only an approximation. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>