"Dan P" <dan### [at] yahoocom> wrote in message news:4079f372@news.povray.org...

> POV-Ray will default to 1 when it finds a 0. For example, if you choose
> to "scale 2*y", it will warn you about it and say it is using 1 instead.

Just to be clear here -

'scale 2*y' is equivalent to saying 'scale <0,2,0>' which POV-Ray will not accept
and will internally change it to 'scale <1,2,1>'.

You cannot scale by zero.

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