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On 9/23/18 10:18 AM, Jim Holsenback wrote:
> On 9/23/18 9:20 AM, ttyUSB0 wrote:
>> I have a material that creates a shadow of varying density, depending
>> on the
>> angle to the direction of the light rays.
>> Is it possible to specify a variable transmission of light through the
>> surface,
>> depending on the angle of light rays incidence?
>>
>>
>
> sure povray does that ... check out ior to characterize the interior of
> your material. have a look in the docs Reference->Scene File
> Extras->Include Files you'll see ior mentioned in a couple of places.
> look in glass.inc and you'll see how to put together a material
> definition. transmit and filter in pigment is worth looking at...povray
> has subsurface light transport too
oh objects can also have interior media too...start at
Reference->Special Effects->Media
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