Severi Salminen <sev### [at] NOTTHISsaunalahtifiinvalid> wrote:
> fidos wrote:
Your results are promising.

> I also started using a faster way to create random rays and also
> implemented importance sampling that made the image converge (smooth
> out) faster.
Seems interesting. What is importance sampling ? Do you have a reference paper ?

> Hmm, I also read about a similar method where a ray is shot directly to
> light sources at each bounce. Have to check it out.
The use of portals has the same effects when the are put around a light source.
But a portal can be put in the hall of a door, increasing the path finding
through the door. It can also be used on a refractive object to help to solve
caustic (but results are not always good in this case).

Regards,
Fidos.

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