Mike Williams wrote:

> Let's try so solve this equation
>
>     abs(x/6+3-floor(x/6+3)-.5)-2/6 = 0

[snip]
Sorry, I wanted a triangle wave if said equation equals y, not if it is less
than or equal to zero. That way, by making it less than or equal to zero I
get a regular pattern of solid space and empty space. That equation should
give me what I want, but I was wondering why there was a plane at x=0:

x-floor(x):

      y
 / / /| / / /
/ / / |/ / /
-------------x

dividing by 6 increases the wavelength, adding 3 translates it, subtracting
the .5 makes half of it go below the x-axis, and taking the absolute value
inverts the lower portion to form the parts with negative slope:

     y
/\/\/|\/\/\
-----------x

So I'm thinking perhaps it is a bug.

Anyway, I got what I wanted using modulo so it doesn't matter.

--
David Fontaine  <dav### [at] faricynet>  ICQ 55354965
My raytracing gallery:  http://davidf.faricy.net/

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