Am 01.12.2016 um 12:34 schrieb John Greenwood:
> clipka <ano### [at] anonymousorg> wrote:
>> Am 01.12.2016 um 11:34 schrieb John Greenwood:
>>
>>> Yes I think so. It seems that the x,y,z is needed when it is a function within a
>>> function as in R_Surface.  I am nesting functions 5 deep and it looks like the
>>> x,y,z needs to be "passed down" but I am not clear exactly what the rules are.
>>> The x,y,z is a bit of clutter for the user.
>>
>> That shouldn't be the case -- unless the functions further down the
>> rabbit hole actually try to access x,y,z.
>>
>> There's essentially just one special case with regards to x,y,z: If you
>> specify a function without a parameter list, it will default to (x,y,z).
> 
> In the line:
>   #declare R_Surface =
>
function(p,r,L,xo,yo,zo,x,y,z,Fm){R_S_function(p,x,y,z,((x*xo+y*yo+z*zo)/sqrt(pow(xo,2)+pow(yo,2)+pow(zo,2))
> +L+Fm) /-r)}
> 
> Substituting R_function for R_S_function no longer works. I think this is
> because Fm is a function that contains functions of x,y,z.
> 
> R_function works when it is at the bottom of the hole as in this example from a
> previous post:
>   #declare R_Object1 =
>      function(x,y,z){
>         R_Intersection(
>                 +R_function(p,(x  +(4)) /-r)

Can you attach an example scene file in povray.binaries.scene-files?

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