Hello. Here is the POV 3.5 version. I used no lights, only radiosity 
settings and an ambient sphere. Render time was 7m 45s

Here is the POV code:

global_settings{
  max_trace_level 50
  radiosity{
   error_bound .125  count 1575 nearest_count 10
   recursion_limit 1  normal on
   brightness 13.5  gray_threshold 0
   pretrace_start .08  pretrace_end .005
   always_sample on
  }
}

camera{location<0,30,-50> look_at 0 angle 40 }

sphere{<100,50,-50>,40
  pigment{rgb 1}
  finish{ambient 1}
  no_shadow double_illuminate
}

background{rgb .025}

plane{y,-2 pigment{rgb .7} finish{ambient 0} }

union{
  torus{11,1 translate y*1}
  torus{11,1 translate y*-1}
  cylinder{y*-1,y*1,12 open}
  cylinder{y*-1,y*1,10 open}
  pigment{rgb .1}
  finish{reflection .9 ambient 0}
}

Oldstench wrote:

>     My question is this...The first picture (caustinc_ring_2.jpg) represents
> a render I did with Brazil to test its caustics, the second picture
> (torus.jpg) is a photon image that I did in MegaPov just trying to get some
> caustics as a start. But, as you can see..it looks like absolute crap. Why
> is the ring glowing like that, and why are there no caustics in the familiar
> parabolic shape?
>     Thanks - Oldstench
> 
> 
> 


-- 
Samuel Benge

sbe### [at] caltelcom

Post a reply to this message

Attachments:
Download 'ring.jpg' (16 KB)

Preview of image 'ring.jpg'