HD Cache for direct light

[fobus]

Is it possible to optimize direct lighting like it done with indrect by HD cache? It is nearly impossible to render scenes with huge amount of lights. Render times is sky high.

[Polymax]

yes
http://forum.corona-renderer.com/index.php/topic,1487.0.html

[fobus]

Do You have any suggestions about how to remove this noise from inside? http://forum.corona-renderer.com/index.php/topic,2268.0.html Scene: http://www.sendspace.com/file/m1em5f

[Ondra]

This won't help, since direct lighting is very hard to cache, and for that reason it is normally not cached at all - it contains sharp boundaries/high variance, which is difficult to cache+interpolate. Also HD cache is used only for secondary GI, but most problems with direct lighting are on the first bounce