Shai nous apporta ses lumieres en ce 20-04-2007 07:01:
> Alain <ele### [at] netscapenet> wrote:
>> Shai nous apporta ses lumieres en ce 19-04-2007 16:48:
>>>>   Given that the mesh is transparent how could you expect it to work
>>>> correctly if parts of the surface have been removed?
>>>> --
>>>>                                                           - Warp
>>> I only want the ray to refract when it enters the object. The ray should not
>>> be refracted again when it leaves the object through the back side. I didn't
>>> know how to get this effect in POVray, so I thought it would be best if I
>>> just removed the back of the object myself.
>> OK, but that is completely unrealistic and contrary to comon sence.

>> --
>> Alain
>> -------------------------------------------------
>> I abhor war and view it as the greatest scourge of mankind.
>> Thomas Jefferson

> I know, but I'm not going for realism here :)

> Nevertheless, is there any way to achieve this effect without me having to
> remove the back of the object?


You can replace it with a flat surface. There will be a refraction, but it will 
be uniform. It may be the best compromise available to you.
For that, you can rework your removal tool into a replacing one, or you can 
difference the mesh with a plane. For that last one, the mesh must be completely 
closed and every faces must be correctly oriented, the inside vectors all toward 
the actual inside of the mesh.

-- 
Alain
-------------------------------------------------
Commercialism: Let's package this shit.

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