hello.

i have one problem with torus.

let say that we have a form defined like this :
  union {
    cylinder { }
    object { torus_segment }
    cylinder { }
    object { torus_segment }
    cylinder { }
    }
  
major radius is 180, minor radius and cylinder radius is 20.
camera is at <1000, 1000, 1000> and look at <0, 0, 0>.

when rendering this object, no torus is draw !!! (first attached image)

so what ?
if i put camera at <1000, 1000, 1000>*0.60, torus are here (second image).

and so on. let build the bonding box of this object :
box {
  min_extent(sForm) max_extent(sForm)
  pigment { rgbt 1 }  <-- 'invisible pigment
  }

rendering with camera at <1000, 1000, 1000> show torus...
(third attached image)

it's a bug or i am wrong ?
i use mac megapov 1.0 30-dec-2002.

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Attachments:
Download 'no_torus.JPG' (5 KB) Download 'camera.JPG' (8 KB) Download 'bondingbox_torus.JPG' (6 KB)

Preview of image 'no_torus.JPG'

Preview of image 'camera.JPG'

Preview of image 'bondingbox_torus.JPG'