Thomas de Groot <tho### [at] degrootorg> wrote:
> 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?

No; `aoi` depends on the angle between the surface and the camera ray.

Post a reply to this message