Are there any examples (in cg/real life) where L_i == L_o?
Why do we need to make this distinction between incident radiance and extant radiance?
Is this only for certain types of surfaces (or different on certain types of surfaces)?
To model reflection, do we model L_o as a function of L_i? What are the parameters of that function?
Where does the surface's albedo come into play here?
How do transparent surfaces or surfaces that reflect light affect these rays?
Are there any examples (in cg/real life) where L_i == L_o?
Why do we need to make this distinction between incident radiance and extant radiance?
Is this only for certain types of surfaces (or different on certain types of surfaces)?
To model reflection, do we model L_o as a function of L_i? What are the parameters of that function?
Where does the surface's albedo come into play here?
How do transparent surfaces or surfaces that reflect light affect these rays?