Warp wrote:
> Christopher James Huff <chr### [at] maccom> wrote:
>> Media containers. The intersection wouldn't be totally ignored, ray
>> entry/exit would still be tracked, but no texture calculations would be
>> done and trace level wouldn't be incremented.
> 
>   First it's "the intersection with an invisible object should be ignored"
> and now it should not be ignored, but taken into account.
>   Can you people decide whether to make the intersection calculation or
>   not?

Ignored in respect to texture calculations and shooting new rays. The 
intersection calculation has to be made anyways (otherwise you could not 
know that the invisible object is hit at all).

> 
>   And not incrementing the trace level counter does not mean that there
> wouldn't be as many recursion levels as intersections.

I do not understand this sentence.. too many negations in it.

> 
>> A similar thing would apply to transparent but non-refracting surfaces.
> 
>   You still need the intersection points. In order to get the intersection
> points, you need to trace rays.
> 

You already have calculated all intersections for this ray so you need no 
new intersection calculations for the intersection after the transparent 
object.

-- 
http://objects.povworld.org - the POV-Ray Objects Collection

Post a reply to this message