How does one fill closed polymeshes? 2005-06-14 - By Harvey White
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On Wed, 15 Jun 2005 02:55:03 -0000, you wrote:
>I am a mathematician, and I am using Carrara Pro 4 to render mathematical
objects. In fact
>the Carrara modelling was instrumental in obtaining $80 000 for building a
mathematical
>sculpture, to be inaugurated next August. I also use Carrara in my lectures; I
like your very
>fast previewer a lot.
>
>I usually import models built by Mathematica in DXF format.
>
>Typically the components are polymeshes which close; to simplify let us say I
have the 6 walls
>of a cube. I can weld the walls together in the modeler, to get a closed
polymesh.
>
>What I need is to obtain from the closed surface a SOLID 3d object - a cube in
the example -
>which I can e.g. fill with transparent glass.
>
>How can I declare it a solid object rather than a surface?
Unless you have a volumetric (true 3D) solid to start with, there is
no way that I know of to make a closed surface a solid in Carrara.
If you wish to have the effect of a solid glass cube, you may try a
glass shader on the cube. Note that the modifier you would need on
the transparency channel is "index of refraction". You will also want
to render with caustics turned on. One of the list members (nospam)
has run across an interesting thing not to do, which is to make a lens
from two formula objects (or one). It does not seem to work properly.
A deformed sphere, however, will display the optical qualities of a
lens.
Harvey
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