On Wed, 24 Jul 2002 21:06:53 -0500, Christopher James Huff wrote:
> In article <slr### [at] fwicom>,
>  Ron Parker <ron### [at] povrayorg> wrote:
> 
>> It's handled correctly except for the very rare case where a ray enters
>> the water object without leaving the glass object.  If your surfaces are
>> close enough together, that almost never happens and AA will fix it if it
>> does.
> 
> You mean where it just skirts the edge of the water object where it 
> overlaps but doesn't touch the inner surface of the glass?

Right.  A very rare case indeed.

-- 
#macro R(P)z+_(P)_(P)_(P+1)_(P+1)+z#end#macro Q(C,T)bicubic_patch{type 1u_steps
6v_steps 6R(1)R(3)R(5)R(7)pigment{rgb z}}#end#macro _(Y)#local X=asc(substr(C,Y
,1))-65;<T+mod(X,4)div(X,4)9>-2#end#macro O(T)Q("ABEFUQWS",T)Q("WSXTLOJN",T)#
end O(0)O(3)Q("JNKLCGCD",0)light_source{x 1}// ron### [at] povrayorg

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