You are absolutely right about the inner cylinder that makes up the glass,
it was of equal length to the outer cylinder. I spotted it about 30 sec
after uploading *doh*.

Render time was approx 45min at 1024x768 +aa and radiosity on my athlon 850.

The bubbles were the first thing my wife noticed were missing. I have now
added them (lots of them), see attached picture.

Dave

p.s I just wondered if it is possible to actually get to the end of raytrace
and be happy with the result. Or do you always spot some tiny insignificant
problem that you have to go in and change and start the render again. If
this is the case I suppose you never really finish a scene. :)

> Very much so.
>
> But ... is there something not quite right with the top of the glass ? The
> refraction of the light is causing the straw to be not visible just below
> the rim of the glass. I'd only expect this to happen if it were a solid
> cylinder rather than open-topped tube.
>
> Is the glass a basic cylinder difference, if so it might be that you have
> made the inner cylinder the same height as the outer, from the wrong
angle,
> this can cause POV-Ray to leave a thin skin where both surfaces intersect.
> If this the case, I'd suggest making the inner cylinder slightly taller
than
> the outer, just to make sure it protrudes through the surface.
>
> Great picture though, the low-lighting is spot-on and I love those
> ice-cubes.
>
> It must have taken a long time to render - the drink has gone flat ;)
> How about some bubbles ? (only a suggestion, this will probably slow down
> the render time quite considerably - lots more reflections and refractions
> for POV-Ray to trace)
>
> --
> Duncan Gray
> (warning: may contain traces of nut)
>
>

Post a reply to this message