On 16-5-2017 18:37, Bald Eagle wrote:
> I was talking with Stephen about some scene elements,
> and was wondering if there were a way to have directly lighted surfaces of an
> object show one texture, and any unlighted / indirectly lighted surfaces have
> another.
>
> The obvious way would be to construct the object in 2 parts - split by a plane
> the light source is perpendicular to, and assign each half a different texture.
> Though I was hoping for something a bit more elegant, easier, and allowing a
> smoother transition.
>
>
>
>

Would aoi (angle of incidence) be the answer?

-- 
Thomas

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