Phil Cook <phi### [at] nospamdeckingdealscouk> wrote:
> >   Media does not need light sources to show up.

> So what does it use to sample along if their are no light_source's?

  I didn't say light sources do not affect media. I just said light
sources are not needed for media to show up (that is, they are not
the only thing that affect them).
  In fact, light sources do not have any effect whatsoever on emitting
media. In absorptive media light sources only affect the shadow of
the media. Scattering media fully takes into account light sources,
but can still be seen even if there are none.
  If you are lighting your scene using emitting media and radiosity,
light sources will not affect the brightness of the media.

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -

Post a reply to this message