[Development] Help needed with math3d classes

[Sean Harmer]

On Tuesday 04 September 2012 14:17:28 Thiago Macieira wrote:
> On terça-feira, 4 de setembro de 2012 12.48.20, Sean Harmer wrote:
> > I know that qFuzzyCompare() is not the best for comparing floating point
> > numbers, especially if one of the values is very very close to zero, but
> > it
> > works on other platforms in this test.
> 
> qFuzzyCompare is supposed to be used with non-zero arguments. To compare to
> a zero, use qFuzzyIsNull.

Yes. The trouble is there is no generic compare two floats when you don't know 
if either of them are supposed to be near to/exactly zero. I have a WIP patch 
here to try and resolve that but it is a very tricky problem. 

I do not yet know if it is a zero/near-zero value comparison causing the 
issue.

Cheers,

Sean

--
Dr Sean Harmer | sean.harmer at kdab.com | Senior Software Engineer
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