"John D. Gwinner" wrote:
> 
> This is a follow up question that belongs in 'new users' ..
> 
> when you code things like
> 
> translate -y
> 
> is it really the same thing as
> 
> translate <0, -1, 0>  (as the doc's imply)
> 
> or is the value 'y' being evaluated inside the color map somewhere?

Yes:

translate -y = translate <0,-1,0>

translate x+-y = translate <1,-1,0>


Additionally:

pigment { rgb y } = pigment { rgb <0,1,0> } = Green

pigment { rgb x+y+z } = pigment { rgb <1,1,1> } = White


Questions?

-- 
Ken Tyler

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