[Radiance-general] pure monte carlo rendering tips

[Mark Stock]

Mike,

I had this same problem in March 2013, and the non-intuitive solution
was to crank up "-ar". The higher that went, the smaller those halos
became.

Wow, -aa 0 -ab 4 AND -ad 3000? You must have a lot of time on your hands.

Mark

On 1/26/15, Mike Martinez <mmartinez at integralgroup.com> wrote:
> Hi folks,
>
> I'm experimenting with irradiance cashing turned off, and would appreciate
> any tips. In a test scene, I have some curious results where surfaces meet
> at a corner or edge. See partial image here (note the short partitions
> meeting the floor plane, you also see it along the roof structure
> components):
> https://www.dropbox.com/s/9qcsxgk0h4xr4gf/test.tif?dl=0
>
> Here are my rpict settings (most generated by rad program, overrides given
> for ambient parameters):
> -dp 4096 -ms 0.25 -ds .2 -dt .05 -dc .75 -dr 3 -ss 16 -st .01 -lr 12 -lw
> 1e-5 -ab 4 -aa 0 -av 0 0 0 -ar 800 -ad 3000 -as 1500 -ps 3 -pt .04
>
> I'm guessing -ar doesn't matter, there may be some optimization tricks
> between -ad and -as, and probably some really important variable I have
> less of a grasp on...
>
> Many thanks in advance!
>
> MM
>