Le 18-06-17 à 10:05, jr a écrit :
> hi,
> 
> I tried using the 'no_image' object modifier to achieve an effect where one
> (emissive) media filled container, hidden, is intersected by another, visible
> one.
> 
> the documentation (3.4.5.5.7) says "..the object will not be seen...will still
> cast shadows, and show up in reflections.."
> 
> I read this as: the object is still there but you can't see it.  apparently not,
> since the media filled container seems gone completely.  :-(
> 
> the question then is how can I have an media filled container "out of view" but
> still interact with another, intersecting media filled container?
> 
> 
> regards, jr.
> 
> 

With no_image, the object can't be seen directly. That also affect it's 
interior including any media.

If you don't want to see the container, you need to give it a fully 
transparent texture, with no reflection nor highlights :

pigment{rgbt 1} OR pigment{rgbf 1}
finish{specular 0 phong 0 reflection 0}

Do NOT use rgbft<1,1,1,1,1> as it WILL make the object visible by 
screwing up it's transparency.

Don't forget to make the container hollow.


Alain

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