Re: [grt-talk] Some suggestions.

[Simon Adameit]

Nikodemus Siivola wrote:
> Take for example phong higlights. Higlights are reflections of
> light-sources, nothing else. The normal approach is to make phong a
> property of object surface. For 0.2 I'm planning a "smart" phong that will
> be an inferred property for non-visible light sources, based on their
> virtual size and the reflectivity of the object surface.  Light-sources
> that have a "looks-like" attribute will not get phang, but will insteas be
> just reflected. This may turn out to be non-workable and silly, but at
> least we'll know. And if it works, we're in for an article in the
> Raytracing News... ,)=

Highlights are *blurred* reflection of light-sources. afaik phong is a 
cheap trick to simulate these using the two parameters roughness and 
reflectivity it is not related to light-source size. And I think it 
wouldn't be very usefull if we did this as light-sources big enough that 
this would be necessary should be done as area-lights anyway.
So we better implement area-lights and let them not only generate area 
shadows but also area highlights and diffuse.