Among other things, David Burnett wrote:

>   No, you don't have to modify the function as ABX already pointed out:
>> 
>> #declare fn_Shape = function { ... }
>> 
>> #declare fn_Iso = IC_Displace (fn_Shape)
>> 
>> isosurface {
>>   function { fn_Iso(x,y,z) }
>>   ...
>> }
> 
> And this our point of contention. I say
> the isosurface here is the result of fn_Iso,
> and not a displacement of fn_Shape and you
> disagree.

What if POV syntax were:

isosurface {
  function { fn_Shape(x,y,z) }
  displaced_by { IC_Displace }
  ...
}

... and it were internally translated to IC_Displace(fn_Shape) ?

Would it be different?

-- 
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby

Post a reply to this message