Ron Parker <ron### [at] povrayorg> wrote:

> On 23 Feb 2001 14:36:47 -0500, Geoff Wedig wrote:
>>funky things happen.  This has *long* been a standard.  If I were doing
>>dividing, where a small roundoff could have occured, then there might've
>>been some question, but in this case, we're dealing with integers added to
>>integers, albeit stored as floats.  I can't see why they'd conflict in this
>>fashion.  Or is POV doing something extremely funky with the clock?  I
>>suppose it's possible that rather than use the settings I gave it for
>>initial and final clock, it still does 0-1, but then multiplies it by the
>>difference and adds the initial_clock, to get the clock setting given to the
>>scene file, but that seems like a lot of work when the true values are right
>>there.

> That's what I thought it must be doing, too, at first, but I see now that
> it computes the clock delta and adds it for each frame.  The clock delta is
> given by (final_clock-initial_clock)/(final_frame-initial_frame), which
> should be exactly 1 unless you're using an old Pentium, but perhaps there's
> something funky about division that I don't understand.

May be.  I've not spent any time on it, figuring that it looked like a doc
problem, and even if it wasn't, the fix I used worked quite well, so why
worry too much about it?

Geoff

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