This is how the rendering equation is written in the textbook

$$L(p,\omega) = L_e(p,\omega) + \int f(p,\omega_i,\omega) \, L(p*,-\omega_i)\cos \theta \, d\omega_i$$

which component of this equation handles the shadowing?

  • 1
    $\begingroup$ BTW, what is the "*" notation in this formula? I've never seen that in the rendering equation before. $\endgroup$ May 8 '16 at 18:32
  • $\begingroup$ @NathanReed p* is just a point from another surface, L(p*,-wi) is just the radiance from point p in direction wi $\endgroup$ May 8 '16 at 18:53

Light that is blocked will mean that $L(p*, -w_i)$ under the integral is 0 plus how much light the blocking object itself reflects.

In other words the shadowing is embedded in the incoming light function.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.