Re: Curved Light

Len Wanger (wanger@intsim.com)
Wed, 6 Dec 1995 23:51:25 -0500


>Can you make a transparent object that distorts the image behind it? I mean,
>if you look tmeough a glass sphere in Reality, whatever is behind it is
>curved and bent according to the shape of the sphere.

Modeling of Fresnel effects requires more sophisticted (and computationally
expensive) lighting and material models. It would certainly be possible to
add support for this in a browser and to use the extension mechanism to add
the needed nodes to specify the lights and materials.

>Also, just for grins :), does gravity affect light traveling tmeough your
>world? If this is the case, you could make a truly cool Black Hole. I'm not
>esally serious, but it's a thought.

There was a paper on ray tracing relativistic scenes in a defunct graphics
journal called Pixel. Fun stuff but not used very often.

Len

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Len Wanger
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