Re: high precision models

[Seth G. <sga...@li...>]

On Fri, 4 Jan 2002, Bill Currie wrote:

> I was having a look at that last night. By using a memory format that combines
> the highprec verts into 16 bit words rather tyan bytes, that asm function
> would only need a trivial change for highprec. It would, however, need
> duplicating.
> 
> Lerping, on the other hand, would be a bit trickier. I haven't come up with
> anything for that yet. (I hadn't realised sw alias model rendering was /that/
> hairy).

I think it's just a case of the right conditional statements in the right
places, i.e. if interpolation is off, and high precision is not needed,
then use the old function, otherwise use a new function.

high precision models would not HAVE to have their own asm optimizations -
at least not right away (and getting this implemented quickly is important
to me as I have other things to work on) but someone could optimize that
side of things later (perhaps once the have more high precision models to
test it with!)
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